AC3Filter prerelease version (ac3/dts/lpcm support)

[Valex]

http://ac3filter.sourceforge.net/download/ac3filter_1_01a_rc1.exe

Whats new:
* AC3/DTS/LPCM/MPEG Audio layer I/II decoding support
* AVI/AC3 & AVI/DTS support
* Bass redirection crossover frequency
* AC3/DTS/MPEG Audio SPDIF passthrough
* Real-time AC3 encoding for multichannel SPDIF output
* full MatrixMixer replacement (can be used with any other audio stream too)
...
(equalizer was removed but it will be back)

Just want to test it before release...

[P0l1m0rph1c]

Great news!

Thanks Valex!

[timeismoney]

Wonderful!

So long's waiting...

PS: I found if I want WMP play a dts audio file, I still need a source like Gabest's dtsac3source.ax

[AJ Bertelson]

How will this work for analog out sound cards?

[avih]

Good news Valex. Why don't u add this file to the sourceforge page? You can add it under a 'development' branch or something similar.

cheers.

[Sycho]

is it possible to have a 7.1 output from AC3filter. I mean there's lots of new 6.1 and 7.1 soundcards, and different ways of upmixing to get the new surround back channels

[The Belgain]

Great work! ac3 audio encoding will be really nice for anyone who doesn't have an nforce2 board. What kind of spec machine is needed for that to run in realtime? What's the quality like? Any testing?

I would give it a go out of interest, but I have analog speakers, so no need for it.

[Monamona]

Great wrok!!

Well,
Could someone tell how to enable real-time AC3 encoding?

[Solo]

Thanky You Valex.

I can finally play DTS audio on my PC. Even my PowerDVD (which is supposed to include DTS support) never played it. Looks promising. Unfortunately I don't have DTS support on my amp to test the DTS pass through. But still, great stuff :D

[Blight]

Looks like audio-encoding is freezing up on people and S/PDIF output doesn't always work properly. Here's more info:
http://www.avsforum.com/avs-vb/showthread.php?threadid=403818

[alexnoe]

AVI/DTS support :-)

[MentholMoose]

Originally posted by Blight
Looks like audio-encoding is freezing up on people and S/PDIF output doesn't always work properly. Here's more info:
http://www.avsforum.com/avs-vb/showthread.php?threadid=403818

I reported on the avsforum thread that I couldn't get passthrough to work, but I've since found that I can get it to work sometimes. I'm testing with GraphEdit because the behavior is intermittent with Zoom Player (WMV Pro v.4.00 beta pre RC1) and Media Player Classic (6.4.8.1).

From my observations in GraphEdit, I think the setting "Main > Options > SPDIF" is not being loaded when AC3Filter initially starts.

If I launch GraphEdit with the SPDIF option already enabled and create a graph with AC3Filter decoding an AC3 stream, GraphEdit will not perform as expected: nothing happens if you click play, and if you click stop GraphEdit will hang for 10 seconds and give this error message: "The graph was unable to complete pause within 10 seconds. Press Retry to wait another 10 seconds for completion or Cancel to attempt to stop the graph". This will happen regardless of what "System > SPDIF passthrough > AC3" is set to.

However, if then I access AC3Filter properties (from within GraphEdit, not the Start menu), disable and re-enable the SPDIF option, then press play, the graph will play as expected: passthrough will work fine if it is enabled; if passthrough is disabled, AC3 Encode will work but drops out after an undetermined amount of time, even with low (<10%) CPU usage.

Also, if I load GraphEdit with the SPDIF option disabled, then enable it after starting GraphEdit, it will function as expected.

This strategy does not seem to work in Zoom Player at all, and it works a little bit in Media Player Classic (I've done very little testing with either, though).

I've tried this with a variety of sources (vob, ac3, mkv+ac3, avi+ac3) and filters (various splitters) and the behavior seems consistent, so other filters don't seem to have an effect on this.

Some info on my PC:
Win2K SP4, 2.2GHz AMD Barton, nforce2 motherboard (note: AC3 encoding is disabled in soundstorm), 512MB RAM.

[Valex]

@MentholMoose
If you can spend some time for several testings, please write to my email...

[MentholMoose]

PM sent... I couldn't find your email addy, sorry.

[pogo stick]

Ofigetitelno! :D
So it's more like ffdshow of audio now!
Are you intersted in AAC? It's becoming more and more popular.
And Ahead is about release an improved version, as rumors say.

[Valex]

@pogo stick
>Are you intersted in AAC?

Planning (and OGG too)... Moreover it is no troubles to add new decoders anymore.

[Valex]

@sycho
> is it possible to have a 7.1 output from AC3filter.

Generally it is possible, but it will require some work. Plus I can hardly imagine upmix equations for 7 channels. With using of HRTF techniques and spectral filtering it is possible to feed any number of channels but I'm still too far from all this things...

[Valex]

@The Belgain
> What kind of spec machine is needed for that to run in realtime?
Encoding consumes about the same processor time as decoding.

> What's the quality like?
I got FFMPEG as basis for encoder (hardly rewrited and optimized) so quality is the same. Fixed bitrate used for output - now it is 448kbps (just for testing), release will use 640kbps. Of course, quality is worse than of specialied encoders. Bitrate factor is about 0.6, i.e. 640kbps quality of FFMPEG encoder ~= 384kbps quality of standalone encoder (it is theoretical value; it was no special quality tests).

[Valex]

@Monamona
> Could someone tell how to enable real-time AC3 encoding?

AC3 encoding is used when SPDIF output is specified and passthrough mode for selected format is disabled. Current SPDIF output mode you can see near SPDIF checkbox (in parenthesis).

But note that encoding may not be possible because some sound cards cannot transmit 44100Hz encoded audio, so if you have such source it will be encoded.

[pogo stick]

Originally posted by Valex
Planning (and OGG too)... Moreover it is no troubles to add new decoders anymore.
Great!
You are real WIZARD! :)

[yidaki]

I love AC3filter, it's like the FFDshow of surround sound :)

[Nippur]

Thank you!!!! I will try it! Waiting for the final version!!!

[athos]

Originally posted by Valex
But note that encoding may not be possible because some sound cards cannot transmit 44100Hz encoded audio, so if you have such source it will be encoded.
Perhaps you could include a sample rate conversion function in future versions, based on SSRC (http://shibatch.sourceforge.net/download/ssrc-1.29.zip)?
It would be good also for analog output, as the quality is better than for example SoundBlaster's hardware conversion (IMO).

Anyway, good work on the ac3filter, I always wanted a realtime ac3 encoder, even considered buying an nforce2 platform because of this.

[obieobieobie]

Great job Valex! I love Ac3filter.

Is the new ac3filter supposed to decode mp3 streams in avi-files?

Using Zoomplayer 3.20 I get both the standard Fraunhofer MP3 decoder in WinXP and the new ac3filter showing up.

Edit: By deactivating PCM decoding in the ac3filter system config, it stopped showing up, but it showed up when I disabled both the MPEG audio options.

[KpeX]

Excellent work valex :) I finally had time to test and the new features are working flawlessly on my box, AC3 encoding on the fly uses surprisingly low CPU and audio sync stays right on. I agree with athos that a resampling to 48Khz feature would be great for upmixing music on the fly. Cheers,

[E-Male]

I wanna second (third?) the resampling idea

resampling to 48khz (if source is not 48khz yet) and encoding to 5.1 ac3 at 640k on the fly would rock

that will help the new multichannel audio codecs a lot

looking forward a lot to the final release version

E-Male

[Tuning]

Thanks valex,

but i don't understand why ac3 filter is used while decoding AAC?:confused:

[yidaki]

ac3filter works as matrixmixer aswell, that's why it pops up while decoding other sound formats.
it disperses a 2.0 stream like a stereo mp3 to all your speakers(or atleast 5.1)

it would seem ac3filter is a litte buggy when using it together with reclock though, audio disappears for 3-5seconds once every 15min or so (even more often when used together with spdif, but i dont really need spdif when i'm using ac3filter so it's ok)

[SeeMoreDigital]

Yep this app is truly awesome!

And it arrived less than two hours after I asked about such an tool here (http://forum.doom9.org/showthread.php?s=&postid=497184#post497184). What a stroke of luck!


Many thanks

[rjamorim]

Originally posted by Valex
* AC3/DTS/LPCM/MPEG Audio layer I/II decoding support


Just wondering... why no layer III decoding?

(Please don't hate me if it's there and Valex forgot to mention... I didn't download it... waiting for a stable version ;) )

Also, don't you think it's about time you change the filter's name?

[DSPguru]

Great news!
Originally posted by rjamorim
Also, don't you think it's about time you change the filter's name? good point, mate :)

[SeeMoreDigital]

Originally posted by rjamorim
Also, don't you think it's about time you change the filter's name? I was just thinking that myself. It's obviously much more than an AC3 (Dolby Digital) DSdec filter now!

Personally I would really love it if it could process AAC LC and HE streams too, then it would become the ultimate S/PDIF tool!


Cheers

[obieobieobie]

I like the name AC3filter. It's not good marketing to change name now. ;)

[SeeMoreDigital]

Originally posted by obieobieobie
I like the name AC3filter. It's not good marketing to change name now. ;) I understand what you mean. The thing is this is a brand new tool which can do way more than decode AC3 (aka Dolby Digital) streams.


Cheers

[DKDIB]

Valex wrote:
> * AC3/DTS/LPCM/MPEG Audio layer I/II decoding support
> * AVI/AC3 & AVI/DTS support

Great news!!! :D:D:D
:respect:



Tuning wrote:
> but i don't understand why ac3 filter is used while decoding AAC?:confused:

I agree.
IMHO it's not a good idea to make a single DS filter that decodes too many formats, because the source is quite difficult to manage (bugfixes, new features, optimizations, ...) and some users may prefer an other decoder for some format.



E-Male wrote:
> resampling to 48khz (if source is not 48khz yet) and encoding to 5.1
> ac3 at 640k on the fly would rock

Sycho wrote:
> is it possible to have a 7.1 output from AC3filter.

IMVHO they're a couple of very interesting features (especially the 1st one).



Time is money wrote:
> I found if I want WMP play a dts audio file, I still need a source
> like Gabest's dtsac3source.ax

Arimicio for this info! ^__^

[rjamorim]

Originally posted by DKDIB
I agree.
IMHO it's not a good idea to make a single DS filter that decodes too many formats, because the source is quite difficult to manage (bugfixes, new features, optimizations, ...) and some users may prefer an other decoder for some format.

It shouldn't be difficult yo manage if each format has a good library.

The MAD library is stable, the Vorbis library is rock stable, the FAAD2 library has been stable for the last few months (although it tends to change a little whenever support for a new AAC profile is added), a52lib also seems to be stable.

If the format has a good library, and it gets updated, you just need to drop it in the place of the older library, and recompile. There should be no problems.

BTW: ffdshow is a single DS filter that decodes too many formats, and it's a great filter neverthless :)

About users wanting another decoder for a specific format: Valex should do just like Milan, and let the user decide which formats you want associated with the filter and which you don't.

Regards;

Roberto.

[Mitchjs]

WOW!

valex its great!!

Im having a few issues... not 100% sure what they are

mostly DTS passthou... I couldnt get a .DTS file to pass
its 44.1k sampling... that if it passed would play tune...
and if it passed and got Kmixer screwed id get noise, but
nothing passed...

also i think it caused the playback program to hang

could you make a option to disable all AC3 encoding...

I have a Nforce board and want the encode to happen via hardware

basicly, i enable SPDIF and check PASS DTS & AC3
but i want my pcm, passed un encoded, so my HW can do it


Valex, again wonderfull code

...I prob didnt have to buy the nforce2 board :)
I have a few wma 5.1 audios and needed it out spdif
for my decoder to do...

Mitch

[Shayne]

Hi has anyone got spdif passthru of 48 Hz dts to play? and if so what settings are being used?

Thanks

Peace

[pogo stick]

Originally posted by DKDIB
Tuning wrote:
> but i don't understand why ac3 filter is used while decoding AAC?:confused:

I agree.
IMHO it's not a good idea to make a single DS filter that decodes too many formats, because the source is quite difficult to manage (bugfixes, new features, optimizations, ...) and some users may prefer an other decoder for some format.
I may be wrong, but Tuning didn't mean that AAC shouldn't be included in AC3Filter.
AAC decoder is not in yet, but AC3Filter is used after decoding AAC as postprocessor if System -> Use AC3Filter for -> PCM is enabled.
It's something like raw video - all supported in ffdshow.
Please, correct me if I'm mistaken.

[yablo]

Thanks Valex,
I've been looking for the live ac3 encoding feature for some time.

Unfortunately in this version the feature just teases me. It will work for a short amount of time (less than 30sec) before the audio cuts out. Tryed it on two different computers with the same results.

Anyway, I look forward to your next release.:D

[arty]

Valex: just a "THANK YOU" !

how about DTS encoding instead of DD (or together) ?
yes, I know that could be hard without any docs... :D

[yidaki]

No bugs yet :)
(except for the incompability with reclock, but that's not really your department)

Would be cool if there was a sample rate output setting where it automatically chooses the same as the input, so that you wont have to change that everytime you watch another movie.

[Solo]

I battled to get my external amp to recognise my AC3 audio track last night. The SPDIF (disabled) check box confuses me :rolleyes: With old filter I just selected spdif out from drop down menu and all OK. Is spdif then enabled but default ?

Went back to ver70 and it works perfect again.

[Monamona]

Originally posted by Valex
@Monamona
> Could someone tell how to enable real-time AC3 encoding?

AC3 encoding is used when SPDIF output is specified and passthrough mode for selected format is disabled. Current SPDIF output mode you can see near SPDIF checkbox (in parenthesis).

But note that encoding may not be possible because some sound cards cannot transmit 44100Hz encoded audio, so if you have such source it will be encoded.

I connect soundcard and Klipsch GMX-D5.1 with optical cable, but
it still does not recognize dolby digital.(means 'not encoded')
Is there any special way to 'specify SPDIF'?
Always shows 'disabled' in parenthesis.

[MentholMoose]

There are issues with SPDIF on 1.01a RC1. I did post a workaround on the first page, but it might not work 100%.

[Valex]

Fixed (I hope :) ) bug with SPDIF passthrough:
http://ac3filter.sourceforge.net/download/ac3filter_1_01a_rc2.exe

(ac3 encode bug is still alive...)

[Valex]

@obieobieobie
Using Zoomplayer 3.20 I get both the standard Fraunhofer MP3 decoder in WinXP and the new ac3filter showing up.

By deactivating PCM decoding in the ac3filter system config, it stopped showing up, but it showed up when I disabled both the MPEG audio options.

Filter does not decode mp3 but can do post-processing, so both mp3 decoder and filter was included. By disabling PCM support you disable post-processing.

[Valex]

@Tuning
but i don't understand why ac3 filter is used while decoding AAC?

Because it replaces MatrixMixer functionality and can do post-processing for any audio source. To disable this disable 'Use AC3Filter for PCM' option at 'System' page.

[Valex]

@yidaki
it would seem ac3filter is a litte buggy when using it together with reclock though, audio disappears for 3-5seconds once every 15min or so

Could you test it without Reclock? (so is it problem connected with filters compatibility or because of ac3filter only?)

Would be cool if there was a sample rate output setting where it automatically chooses the same as the input

Sample rate? Maybe you mean speakers configuration?

[Valex]

@rjamorim
Just wondering... why no layer III decoding?
Layer 1/2 formats are mandatory for DVD playback. So it is possible that DVD logo uses ac3, menu uses mp2 and video uses lpcm audio track and addons with dts. :). And it is required for decoder to switch between these formats.

Also, don't you think it's about time you change the filter's name?

Why? It is good and well-known 'brand' :)

About users wanting another decoder for a specific format: Valex should do just like Milan, and let the user decide which formats you want associated with the filter and which you don't.

Already done :)

[DKDIB]

Pogo stick wrote:
> I may be wrong, but Tuning didn't mean that AAC shouldn't be
> included in AC3Filter.
> [...]

Sorry, you're right! ^^''
I misunderstanding Tuning because I read his post after this one:

Valex wrote:
> Planning [AAC N.d.DK] (and OGG too)... Moreover it is no troubles to
> add new decoders anymore.

[Valex]

@Mitchjs
I couldnt get a .DTS file to pass its 44.1k sampling...
Which sound card? My experiments at ixbt forum show that some sound cards cannot work with 44100Hz SPDIF output sample rate...

could you make a option to disable all AC3 encoding...
You're right...

[Valex]

@Shayne
Try rc2 version...

[Valex]

@yablo
Unfortunately in this version the feature just teases me. It will work for a short amount of time (less than 30sec) before the audio cuts out.

If you have some free time to perform testing just write to my email...

[SeeMoreDigital]

Although you've confirmed that your apps name will remain AC3Filter, I have to say I would still love to see AAC LC and HE decoding incorporated.

There are precious few 'hardware' amplifiers that can accommodate: AC3, DTS, LPCM and AAC streams. So having an piece of 'software' that could do it would be a big bonus.


Cheers

[Valex]

@arty
how about DTS encoding instead of DD (or together)?
It will require too much time. And AC3 decoders are more widespread...

[Valex]

@Solo
I battled to get my external amp to recognise my AC3 audio track last night.

yes, SPDIF output is still buggy...

The SPDIF (disabled) check box confuses me With old filter I just selected spdif out from drop down menu and all OK. Is spdif then enabled but default ?

The problem is:
1) SPDIF output is not always possible.
2) Filter should correctly switch between formats.

If I have DVD with AC3 and LPCM audio tracks I have to switch from AC3 passthrough mode to LPCM mode and vice versa. So you cannot just set SPDIF output, because it is not always possible to use it and SPDIF output state may change during opertaion. It is very complicated problem and it is why I need your help with SPDIF testing...

[Valex]

Forgot to say thanks to Josip Tosic for new 'splash screen', it is much more pleasant :) (I'm not too good designer :) )

[Valex]

I will be out till monday. Hope somebody could make some tests with new version.

[Soulhunter]

Very nice, THX... :)

Btw, would it be possible to add a limiter/compressor for each channel ???


Bye

[Tuning]

Originally posted by Valex
Because it replaces MatrixMixer functionality and can do post-processing for any audio source. To disable this disable 'Use AC3Filter for PCM' option at 'System' page. [/B]

Thanks valex,

Greetings!:)

[rjamorim]

Originally posted by Valex
Layer 1/2 formats are mandatory for DVD playback.

Layer 1 is mandatory for DVD? O_o

I thought the only mandatory layer 1 usage was in Philips DCC circa 1992-1996

Anyway, do you plan to support MP3 decoding (with MAD, hopefully ;) )?

Why? It is good and well-known 'brand' :)

But it no longer reflects the filter's capabilities. It's like calling ffdshow "mpeg4decoder", but it's far from being only that. It decodes other formats, postprocesses, applies subtitles...

[SeeMoreDigital]

Originally posted by rjamorim
...But it no longer reflects the filter's capabilities. It's like calling ffdshow "mpeg4decoder", but it's far from being only that. It decodes other formats, postprocesses, applies subtitles... Agreed... Nice analogy!

This is now 'one hell of a filter'. And needs a name to reflect this!


Cheers

[jorel]

thank you Valex, AC3Filter very cool! :) waiting for the equalizer(again).
...why don't upload the download link(new versions)in the first post?

[Tanshu]

Thanks Valex, AC3Filter is the best. The process PCM part is really great.

[MentholMoose]

Originally posted by rjamorim
But it no longer reflects the filter's capabilities.AC3Filter will decode, passthrough, or encode AC3 streams. How is the name not accurate? You might be confusing some of the wording used in the thread... it does not decode formats such as AAC and MP3, rather it can serve as a post-processor for them (in which case it will be encoding an AC3 stream).

It's like calling ffdshow "mpeg4decoder", but it's far from being only that. It decodes other formats, postprocesses, applies subtitles... Its no worse than calling ffdshow "ffdshow", because ffdshow does a lot more than implement stuff from ffmpeg into DirectShow.

[Rash]

Wow, is this awsome or what!? Thank you so much Valex! ;)

May I make a tiny request? :) Would you mind adding tooltips for the options? I, for example, don't know what bass redirection does. :(

[Mitchjs]

Valex

With RC2

I got 44.1 DTS to pass, when i switched my Renderer to DIRECTSOUND
when in WAV out it didnt pass

and I was using WAV out cause RC1's AC3 had problems with my DIRECTSOUND

now all WORKING GREAT!!!

Thanks again!

yes, please add the disable AC3 Encoding checkbox

Wonderful work!
if your taking any donations... point me to ya!

mitch

[timeismoney]

Valex

I compared AC3 Filter and InterVideo Audio Decoder

to decode DTS, AC3 Filter's Voice is louder than InterVideo

to decode AC3, AC3 Filter is too silence... I have to "gain" to get sound can be loudness enough just like InterVideo...

[rjamorim]

Originally posted by MentholMoose
AC3Filter will decode, passthrough, or encode AC3 streams. How is the name not accurate? You might be confusing some of the wording used in the thread... it does not decode formats such as AAC and MP3, rather it can serve as a post-processor for them (in which case it will be encoding an AC3 stream).

:rolleyes:

It already decodes DTS, LPCM and MPEG audio lI and lII. Valex also reported that he plans to support AAC and Vorbis in the future (so, you are confusing what you read in this thread), and I guess MP3 will be supported too. Sure, calling it AC3filter is not incorrect. But, as time goes by and more formats and features are added, this name starts representing only a small fraction of what it does. So, sticking to it now that it no longer represents the scope of the filter is retarded, IMO.

Its no worse than calling ffdshow "ffdshow", because ffdshow does a lot more than implement stuff from ffmpeg into DirectShow.

But the decoding formats mostly come from ffmpeg, if not all of them. Some of the other routines also come from ffmpeg. And - what is MOST important, and you are completely missing the point - is that the name ffdshow isn't tying the filter to any format or process. AC3filter is tying it to a format.

[Jerry_Sm@rt]

But it does not work when choosing dolby prologic.

[MoonWalker]

Just tried RC2 and AC3 passthrough works ok, but I am a little confused..When I change the speaker settings the output changes.Why is that?If you have an AC3 Extrernal decoder you have 5.1 speakers (or more) so why if I set it to 2/0 the output sound changes(or at least is seems to changes, because the sound makes a "flashing" when a change it").Also when I set the output tou 16bit when using passthrough it changes to disabled and when I set it to 24bit or 32 it's ok.

Great work valex

MoonWalker

[Valex]

http://ac3filter.sourceforge.net/download/ac3filter_1_01a_rc3.exe

Fixed problem with AC3 encode mode and bug with switching between SPDIF and PCM output.

[Valex]

http://ac3filter.sourceforge.net/download/ac3filter_1_01a_rc4.exe
Fixed bug with Dolby Surround output (filter did not load)

[Josip Tosic]

Originally posted by rjamorim
:rolleyes:
It already decodes DTS, LPCM and MPEG audio lI and lII. Valex also reported that he plans to support AAC and Vorbis in the future (so, you are confusing what you read in this thread), and I guess MP3 will be supported too. Sure, calling it AC3filter is not incorrect. But, as time goes by and more formats and features are added, this name starts representing only a small fraction of what it does. So, sticking to it now that it no longer represents the scope of the filter is retarded, IMO.
[...]
What's in a name? That which we call a rose by any other name would smell as sweet. :)

[Tanshu]

Thanx Valex for the great codec, but can I make one very small suggestion. Can you please put the RC version in the actual codec. With these releases, it will make it just a tad bit easier to check the version installed if the codec shows the version along with 1.01a in the config box.

[neo75903]

hey man,

great work!
k just donwloaded rc3 an hour ago! :) donwloading rc4 right now.

RC3 works fine with AC3 input, the only output i got from 5.1AAC is a cracking noisy sound through SPDIF, analogue output worksfine.
My soundcard is a Hercules GameTheater 6.1.

[neo75903]

Hi just did a quick test with RC4 same results with aac5.1 SPDIF out, got cracking noisy sound over again, analogue miltichan is ok.

for Game Theater users, you need to enable "PowerDVD software player" in your soundcard panel to get SPDIF output.

[Valex]

@neo75903
So, PCM and SPDIF passthrough are working ok, only ac3 encode mode still has a problem?

[yevaman]

Hey there , It's a damn wonderful job..Anyway there is some bugs in my side. I hope that together we can help you to go to a stable and non-bugged version :)

I use media player classic 6.8.2 and disable all his internal filters. Then I use yours. I have to say That I only use SPDIF output , and the sound is decoded in my external decoder 5.1.

All seems to be ok with ac3 and dts file. SOund is great and well decoded.

Anyway i've got some problemes concerning DVD part. It seems that u'r codec has problem to jump betweeen pcm and dobly or dts.. Let me explain..

I Own a dvd called " redhot chili pepers live in slane castle".
With I lauch it with ur filters it's ok, the first part ( intro -> menu) is in LPCM but As soon as i wanna choose a song ( and then this one have to pass to dts or 5.1) the screen Freeze , no sound at all and i Have to restart my pc..

I own a terratec fun 5.1 , my proc is an Atlhon XP 2000+

Hope u can fix that ! :) If u need help I'm there !

See ya and thx for ur work

[neo75903]

idd, all seems to work fine except from sending a AC3 signal to my amp.
The result is a cracky noisy sound which i presume the ac3 encoding part is not right yet.
I have a Sony STR DB1070 amp, which is an excellent AC3 decoder, and that Multi Chan led is so kewl when it is lid on :)

btw nice peace of software!

Regards Neo75903

[neo75903]

i mean AC3 signal encoded from my 5.1aac source.
AC3 source works perfect.
Is it true that AC3 filter is going to support 5.1aac?

pls say yes :)

PS testing DVD playback soon.

[Valex]

@neo75903
>Is it true that AC3 filter is going to support 5.1aac?

Yes, but later. Noew I want to make at least first release of new version...

>PS testing DVD playback soon.
If you have mixed formats DVDs please try what yevaman wrote about... (switch between formats in SPDIF output mode)

[yevaman]

What about my problems Valex ? did u find something ?

If u need real time test we can meet on irc if u want..

[HarryM]

Valex:

Milan works intensively on a audio part of "ffdshow", which is similar to your second-generation AC3filter project (multiformat audio decoder).

Can you colaborate on this?

[Blight]

Valex:
There seems to be some sort of timing issue with DTS decoding, here are the details:

1. DTS VOB file from http://www.cinenow.com/us/vobtrailer.php3/id,19/
2. Open Source MPEG Splitter http://inmatrix.osnn.net/osmpegsplitter29032004_nt.exe
3. Open Source MPEG2 Video Decoder http://www.inmatrix.com/download/osmpegviddec29032004_nt.exe

Graph is:

File Source Async -> Splitter -> Video Decoder -> Overlay Mixer -> Video Renderer
________________________ -> AC3 Filter -> Default DirectShow Device

I've experimented with this in GraphEdit with the AC3 Filter at it's default setting (Audio decoded to 2.0 stereo, no S/PDIF).

What happens is that the VOB is played in slow-motion. When trying to use the OpenSource Audio Decoder, it plays the clip smoothly.

[Frisco]

Thanx Valex for the great codec

My Setup is :

Main\Output
- Dolby ProLogic II
- PCM 16 bit
- "True" in SPDIF

System\Use AC3Filter for..
- "True" in AC3

System\SPDIF
- "True" in AC3

This, SPDIF passthrougt, work in RC2, but not in RC4.

(Input sound is AC3 - 48000Hz)

Hi Frisco

[hippoth]

Problems with RC4:

I don´t get S/PDIF passthrough (5.1 AC3 48 KHz), when I disable "SPDIF (disable)" in the main-register despite it is enabled in the system-register (I have all options enabled there)...I mean I don´t have any AC3 5.1 sound with this options but I can hear 2.0 AC3 (your maria.ac3 test file) and stereo sound files

...and in the contrary I can´t play normal stereo and 2.0 AC3 (your maria.ac3 test file) files when I enable "SPDIF (disable)" in the main-register but get S/PDIF passthrough for 5.1

for understanding:

what do I have to set in the main-register, in the output?
what quantisation I have to choose for the PCM...16, 24, 32 or float?

and a last understanding question: when I enable the "SPDIF (disable)"-switch in the main-register your filter tries to encode the stereo to an AC3 singnal or?


I hope it´s not to confusing

[neo75903]

DVD playback trials.
- DVD playback with SPDIF did not work. Tried it with several DVDs.
Movie hangs at the very first second, Analogue playback is ok.

- Locally saved saved VOBS (no menu, main movie only) do play correctly through SPDIF with a few ticks or interruption here and while which does not occur when i passthrough the signal. Analogue is also ok.

Guess AC3 encoding need some more work.

MPC 6.4.8.2, all filters switched off.

Well so far my evening, good nite lads :)

[Rash]

Just a question. The Bass Redirection is the one that mixes the LFE channel on the other outputs, for those 4.0 with filtered sub-woofer like me? :)

Thanks a lot Valex, once again.

[yevaman]

"DVD playback trials.
- DVD playback with SPDIF did not work. Tried it with several DVDs.
Movie hangs at the very first second, Analogue playback is ok."

Same problems there , analog is ok but as soon as it switch to 5.1 or dts --> freeze

Divx+ ac3 ok anyway
Dts sample too

Divx + 2 way stereo -> crappy sound


All with SPDIF output

[basje]

Originally posted by yevaman
"DVD playback trials.
- DVD playback with SPDIF did not work. Tried it with several DVDs.
Movie hangs at the very first second, Analogue playback is ok."

Same problems there , analog is ok but as soon as it switch to 5.1 or dts --> freeze

Divx+ ac3 ok anyway
Dts sample too

Divx + 2 way stereo -> crappy sound


All with SPDIF output

I have the exact same problem with DVD playback. I get 100% CPU use. Analog is fine.

Groeten,

Bas

[Mitchjs]

Valex,

RC4 is definitly broken on DTS

when it sees my .dts file i see the stream input section going crazy
it never passes, and i get silence

going back to RC2 works

keep up the good work... anything to help

if ya can squeeze in me the disable all AC3 encode, then
i can use this filter for mpg and pcm (i want the NForce HW to do the encode)

mitch

[Firewave]

I got a problem with the "Output". I set it to "2/0+SW 2.1 stereo" in the OFFLINE configuration. When I start a movie and got into the configuration of the AC3Filter it shows "3/0 - 3 front". And when I go into the OFFLINE configuration after that it's also set to "3/0 - 3 front".
Using the 1.01a RC4.

[dimzon]

Originally posted by HarryM
Valex:

Milan works intensively on a audio part of "ffdshow", which is similar to your second-generation AC3filter project (multiformat audio decoder).

Can you colaborate on this?
Yeah, I think it's good idea!

[Gibalou]

I've been looking for the source code of this pre-release version and couldn't find it.

Anybody knows where it is available ?

[oddball]

Just to confirm that AC3 passthru does not work over SPDIF in RC4 (It just sends PCM not matter what).

[Valex]

@Blight

Everything is too sad...

First. The OpenSource MPEG2 Splitter has a bug. It detects 22050Hz DTS where it is 48000Hz... I follow timestamps come from upstream (otherwise desync is possible in some cases) what leads to slow audio playback...

Second. Standard MPEG2 Splitter (and MPEG2 Demultiplexer) does not understand .vob with only one dts track.

Third. Media Player Classics has the same problem with sample rate detection when switching from ac3 to dts track. In case of only one dts track player decodes it by itself regardless of the fact that decoder is turned off in options.

:(

[Valex]

@All
http://ac3filter.sourceforge.net/download/ac3filter_1_01a_rc5.exe
SPDIF passthrough is back...

[Valex]

@Rash
>Just a question. The Bass Redirection is the one that mixes the LFE channel on the other outputs, for those 4.0 with filtered sub-woofer like me?

No. Bass redirection routes basses from all channes to subwoofer (if exists at output). So it is not required for you (it just does not work in your case).

[Valex]

@Firewave
Fixed

[Valex]

BTW...

RCx versions ARE NOT releases! It is just test versions and may be completely unstable. Please do not include this versions into codec pack, CD-distributions, etc. And it you copy information about rc-versions to other forums, please, inform forum members about this!

[ernstblaauw]

Originally posted by Valex
BTW...

RCx versions ARE NOT releases! It is just test versions and may be completely unstable. Please do not include this versions into codec pack, CD-distributions, etc. And it you copy information about rc-versions to other forums, please, inform forum members about this!
I've posted information about new releases on filesharingtalk.com. They included RC2 in their latest beta Codec Pack. I hope you don't mind. But if you do not want to, I won't tell them if a new RC is released.

Keep up the good work!

[o_owd]

hello,

first - if this is the wrong place please excuse me.

i have a playback problem with ac3 filter.
my config:
Windows XP + SP1 with all updates
DirectX 9.0b
Creative Sound Blaster Live 5.1 (driver version 5.12.0001.0290)
analog 5.1 Creative speakers
AC3 Filter 1.01a RC5 (output 3/2+SW 5.1 channel).
setting in Creative Surround Mixer : Advanced EQ : pop.

when i am using ANY setting in Advanced EQ from Surround Mixer i have no sound in AC3 Filter.
if i set Advanced EQ to none i have sound. is the only way i can play movies with ac3 filter.
but if i set AC3 Filter output to 2/0 stereo i DO HAVE sound no matter what is in Surround Mixer.

my question : is this a AC3 Filter bug ? or something to do with no good, full of bugs, useless creative drivers ?
is this happening only to me ? can anyone confirm this ?

note: i did not tested with kx project drivers. i will! :)

sorry for long post and my bad english.

thanks.
OJi.

[Frisco]

Hi Valex

My Setup is :

Main\Output
- Dolby ProLogic II
- PCM 16 bit
- "True" in SPDIF

System\Use AC3Filter for..
- "True" in AC3

System\SPDIF
- "True" in AC3

This, SPDIF passthrougt, work in RC2, but not in RC4 and RC5.

(Input sound is AC3 - 48000Hz)

Hi Frisco

[taz291819]

Does anyone know what's up with WMV-HD files? While AC3Filter(RC5) is working fine during playback of WMV-HD files in WMP, it is only encoding 2-channels (left/right front) to DD5.1.

The folks on AvsForum are saying it is a bug in WMP, that it is only outputting 2-channel stereo, which is causing the problem with AC3Filter. Can anyone verify?

Other than that, AC3Filter works great for me (it is encoding to DD5.1 and playing all the way through).

Now, if we can just get WMV-HD files problem working and maybe implement gaming into AC3Filter (Far Cry in particular), everything would be superb.

BTW Valex, keep up the good work.

[Blight]

Valex:
Usually when naming a version as "RC" it stands for Release Candidate, so saying it's not a release is confusing. You should probably say Alpha 1,2,3 as you know there are bugs, then Beta when you think you've squashed everything and finally RC when you think it's 100% stable and almost ready to be called final.

I'll try notifying gabest about this DTS mis-detection, I think the code is open-source, any chance you could fix the detection code?

[Covak]

This is sweet, thanks Valex. Since the crummy 5.1 system connected to my PC only decodes AC3, and I don't have an nForce mobo, the new AC3 encode option is exciting.

One problem I have with AC3 encoding, though, at least when upmixing stereo 44.1KHz material, is that my rears are always really crackly. L/R/C sound fine, but SL/SR are cracking.

[Gibalou]

Originally posted by Valex
BTW...

RCx versions ARE NOT releases! It is just test versions and may be completely unstable. Please do not include this versions into codec pack, CD-distributions, etc. And it you copy information about rc-versions to other forums, please, inform forum members about this!

Don't know if this was triggered by my request for the source code but I wanted to point out that making pre-release versions available doesn't allow one to ignore the terms of the GPL.
AC3filter is GPL software and is based on other code licensed under the GPL so you are required to release the source code for it if you make binaries available.
As one of the authors of the code you are using in AC3filter (namely libdts), I feel very strongly about it.

Thanks for your comprehension.

[oddball]

Still no AC3 passthru in RC5. Had to go back to old 70b.

[hippoth]

the same problems like I said in my last post (http://forum.doom9.org/showthread.php?threadid=76480&perpage=20&pagenumber=5#post500293)!

can anybody help me with my last post (http://forum.doom9.org/showthread.php?threadid=76480&perpage=20&pagenumber=5#post500293)?

[taz291819]

Ok, did a little more testing. Anything encoded at 44.1khz will not be encoded to DD5.1 . All the files (WMV-HD) that were encoded at 48khz worked fine (except for the only encoding 2-channel thing I mentioned above).

If anyone else wants to give it a shot, here is what I've tried:

WMV-HD clip of Magic of Flight (48khz) --- Encoded fine
WMV-HD clip of T2:Extreme (48khz) --- Encoded fine
WMV-HD clip of Dawn of the Dead (44.1Khz) --- Did not encode

I also tried a couple of miscellanous videos, some mpeg2 and some divx, with all different types of audio (some mp3 some at 44.1khz) and none of them encoded. I didn't have any at 48khz to try. I even had one that was PCM 16-bit 705kbs audio, it was a no-go also even though AC3Filter was doing the decoding, just wouldn't encode to AC3.

I'm done for the day with testing, but I'll try some more tomorrow.

[oddball]

Screw encoding etc for now. Just gimmie AC3 passthru back ;)

[Blight]

taz:
Dawn of the Dead is DRM encrypted, perhaps that's a reason.

[Rash]

Originally posted by Valex
@Rash
>Just a question. The Bass Redirection is the one that mixes the LFE channel on the other outputs, for those 4.0 with filtered sub-woofer like me?

No. Bass redirection routes basses from all channes to subwoofer (if exists at output). So it is not required for you (it just does not work in your case).
Thanks a lot Valex. ;)

[Valex]

@o_owd
> When i am using ANY setting in Advanced EQ from Surround Mixer i have no sound in AC3 Filter.

It is well-known bug in Creative drivers...

[Valex]

@Gibalou
I don't think that I'm obligated to give you full report about all my actions and reasons. If you're talking about legal questions this project has so much of legal issues you never thought about that I should immediately close it. So if it is official request to stop public testing (or project at all) it is no problem...

[taz291819]

Originally posted by Blight
taz:
Dawn of the Dead is DRM encrypted, perhaps that's a reason.

That was the first thing I thought of, until I saw it was sampled at 44.1khz and all the other encoding problems are with 44.1khz also.

I will try to find a clip that has DRM protection and is sampled at 48khz to see if it encodes.

[yablo]

taz:
About your 44.1khz problem. I believe Valex already commented on this back on the first page.

Also, I am having no trouble with 48khz multichannel DRM protected content.

Originally posted by Valex
But note that encoding may not be possible because some sound cards cannot transmit 44100Hz encoded audio, so if you have such source it will be encoded.

[Gibalou]

Originally posted by Valex
@Gibalou
I don't think that I'm obligated to give you full report about all my actions and reasons. If you're talking about legal questions this project has so much of legal issues you never thought about that I should immediately close it. So if it is official request to stop public testing (or project at all) it is no problem...

I think my request was very clear. I was not asking you to stop pre-releases or to stop your project.
All I'm asking of you is to respect the terms of the licenses of the code you are using. You were not forced to use this code so it is only fair that if you decide to use it, you respect its license.

So again, all I'm asking for is the availability of the source code for binaries you make available, even for the pre-release versions.

PS: I'm not talking about the legal issues regarding the use of GPL code in a DirectShow filter here. I personnaly don't have an issue with this.... although I do have an issue with closed source applications distributing it in whichever form it may be (directly or even just via a web link) because it is simply and purely a violation of the wish and licensing of the original author of the code.
But I'm digressing here...

[taz291819]

Originally posted by taz291819
That was the first thing I thought of, until I saw it was sampled at 44.1khz and all the other encoding problems are with 44.1khz also.

I will try to find a clip that has DRM protection and is sampled at 48khz to see if it encodes.

You're right. After reading about the SB Live! cards, I think it is my problem. Wish Creative had a driver update for this. Damnit!

[frozen5555]

if I switch to the second audio ac3Filter won`t proccess it. my files are MKV movies with 2 Ogg

[yevaman]

Originally posted by Gibalou
I think my request was very clear. I was not asking you to stop pre-releases or to stop your project.
All I'm asking of you is to respect the terms of the licenses of the code you are using. You were not forced to use this code so it is only fair that if you decide to use it, you respect its license.

So again, all I'm asking for is the availability of the source code for binaries you make available, even for the pre-release versions.

PS: I'm not talking about the legal issues regarding the use of GPL code in a DirectShow filter here. I personnaly don't have an issue with this.... although I do have an issue with closed source applications distributing it in whichever form it may be (directly or even just via a web link) because it is simply and purely a violation of the wish and licensing of the original author of the code.
But I'm digressing here...



...........................

STOP IT

Would u like him to stop working?

Go away..

[Wilbert]

...........................

STOP IT

Would u like him to stop working?

Go away..


No, of course we don't. But, Gibalou is correct. Valex should release the source on request because of the above mentioned reasons.

Valex, is there some reason why you don't want to release the sources?

[kopykat]

I just finished downloading Pink Floyd - Dark Side of the Moon DTS version, but when i play it on all players all i hear is static. I thought this ac3 player can play dts as well. what am i doing wrong?

:confused:

[Shayne]

Still no spdif pass thru on Hercules 7.1 card of 48 Hz dts 5.1 files.

Are my settings wrong can anyone else get zoom to output it?

Peace

[merrypig]

Using rc5;

MPG2->3/2+SW SPDIF output is working like a charm for me

DVD with 2 channel AC3 audio (48khz samples) 224kbps -> locks up after 1-2 seconds (spdif output on)


this a known issue?

[Sycho]

Originally posted by kopykat
I just finished downloading Pink Floyd - Dark Side of the Moon
Rule 6 buddy

[Gibalou]

Originally posted by yevaman
...........................

STOP IT

Would u like him to stop working?

Go away..

Hummm, I think that you are forgetting that Valex is just 1 of the many people working on the code present in AC3Filter. For instance the software DTS audio decoding was taken from libdts (http://www.videolan.org/dtsdec.html) for which I am the author.

And I can tell you that if people start using my work while ignoring the licensing that comes with it, I don't see a reason why I should continue on improving libdts. That would be a shame as well because there are still a lot of things missing in the DTS support (6.1/7.1 and 96kHz extensions, proper downmixing, dynamic range, dialog normalization... just to name a few).

[taz291819]

Originally posted by kopykat
I just finished downloading Pink Floyd - Dark Side of the Moon DTS version, but when i play it on all players all i hear is static. I thought this ac3 player can play dts as well. what am i doing wrong?

:confused:

First, I'm going to 'assume' you paid for that download, though I'm not sure of any legal sites that have dts cds available, but I could be wrong.

Second, what type of soundcard are you using? If it is a card based on the AC97 standard (Creative SBLive!'s are, as are many others), you can't play back DTS cds on your pc. The reason being is that DTS cds are sampled at 44.1khz, and AC97-based sound cards re-sample everything to 48khz. This is the reason for my playback problems posted earlier. You can buy pretty cheap sound cards that aren't based on the AC97 standard for as little as $23 (USD).

Note:
I'm not saying you can't play the DTS track on a DVD, because you can. Just not DTS CDs. Also, you may be able to rip the DTS CD and author it to a DVD and play it back that way.

[GBX]

hi
i am very glad that the development of ac3filter continue
i waited a very long time for bass redirection in the matrix mixer
so i tested a bit around und it seems that all control panels for LFE doesnt take any effect, if the source is stereo.
and another bug is, that audio randomly stops playing, although the media player shows it playing. but this could also be a bug of media player classic

[testis]

Till now i have use those three components :
AC3 Filter 0.70B Main-Spdif output PCM24Bit
Creative Cambridge Soundworks DTT2500
(http://www.thetechzone.com/reviews/speakers/dtt2500/page2.shtml )
(5 speakers + Sub Boofer + Station)
SB Audigy 2 ZS (connect to spidif out)

till now when I have look movies (Divx with AC3 support) start burning Dolby Digital light

Because they are connected SB Audigy 2ZS out and back of creative center with Dolby Digital AC3 input)

But now I have problem when I instal AC3 RC1-RC5 Filter how to setup it.

There is no more SPDIF out seting under MAIN.
Sooo when I run The same DiVx movie with AC3light on DTT decoder doesnt burning anymore.

how should I setup AC3 RC5 filter now

with 0.70B works Dolby Digital light and SPDIF under main in ac3 0.7b filter like cake.

please for help

best ,
testis


sorry about my english

[yevaman]

Originally posted by Gibalou
Hummm, I think that you are forgetting that Valex is just 1 of the many people working on the code present in AC3Filter. For instance the software DTS audio decoding was taken from libdts (http://www.videolan.org/dtsdec.html) for which I am the author.

And I can tell you that if people start using my work while ignoring the licensing that comes with it, I don't see a reason why I should continue on improving libdts. That would be a shame as well because there are still a lot of things missing in the DTS support (6.1/7.1 and 96kHz extensions, proper downmixing, dynamic range, dialog normalization... just to name a few).

OK i understand , sorry about that..

But it seems that valex has quit :(

[taz291819]

Nah, I doubt Valex has quit, he's probably just busy.

Hey Valex, is there any way you could get the AC3Filter DD5.1 encoding feature to work on cards that always re-sample everything to 48khz? A lot of us will have to buy new sound cards if it isn't possible.

Thanks and keep up the good work.

[kopykat]

thanks taz291819. until now i had no problems listening to movies and games in surroud, weather it was prologic II , Dolby Digital or DTS. but this is the first time im trying to playback a dts cd. Im running an onboard sound card based on AC97 like you've mentioned. I output all my sound via the Spdif out i have, and do all the decoding with my receiver. So im assuming i have no choice but to either buy a sound card that will do the job (costs money) or ripp the cd like you said (a matter of time :D ). since i dont have any spare change im gonna go with the ripping part, do you know where i can get such information? on ripping a DTS audio cd that is.

many thanks,
take care.

[Mitchjs]

Please stay on topic!

Valex, passthrough working great on RC5

one thing when i send it a MPEG2 audio track
via zoomplayer.... and it was encoding to AC3

My video played back at 32fps instead of 29.97
and the audio was piched up...

but it didnt hang or stop encoding

I still need that "Disable all ac3 Encode" check box


thanks again!

Keep up the GREAT Work

mitch

[gubbah]

I'm under the impression that "MPEG Audio" means MPEG-1 Layer 2.

I have it enabled in the "Use AC3 Filter for..." section, but when I load an MP2 file it's decoded by the generic (M$) MPEG-1 decoder?

Im trying to get it to pass through the SPDIF.

[taz291819]

Originally posted by kopykat
thanks taz291819. until now i had no problems listening to movies and games in surroud, weather it was prologic II , Dolby Digital or DTS. but this is the first time im trying to playback a dts cd. Im running an onboard sound card based on AC97 like you've mentioned. I output all my sound via the Spdif out i have, and do all the decoding with my receiver. So im assuming i have no choice but to either buy a sound card that will do the job (costs money) or ripp the cd like you said (a matter of time :D ). since i dont have any spare change im gonna go with the ripping part, do you know where i can get such information? on ripping a DTS audio cd that is.

many thanks,
take care.

To stay on topic, I would get a new sound card, which is what I'm doing on Monday. The Chaintech AV-710 will do the trick just fine. It's only like $23 (USD) on newegg. It only has an optical output, but you can buy a converter (to coaxial) at Ratshack for $15. This will work perfectly with AC3Filter.

[oddball]

For some reason I now get SPDIF Paasthru as a tickbox instead of SPDIF disable under the main options. It's not a drop down anymore. It's a tickbox underneath the dropdown.

I think a reboot did it.

Make sure you reboot after installing RC5 people!

AC3 passthru working perfectly in RC5 :)

[oddball]

As to those people talking about licenses etc I say 'GET LOST!'. There are too many bloody goody two shoes out there blowing their own trumpets. If Valex was doing anything for profit then I'd say 'Hell yeah'. Go right ahead and complain.

It's bad enough we have corporate greed from the likes of the RIAA etc with them sueing people left right and centre without some plebs giving others a hard time on freeware. :P

You people who get on your high horses about licenses etc really make me angry!

Now leave Valex alone. GO AWAY and STFU!

[SeeMoreDigital]

Works for me too!

Having said that, the wording might still be confusing some people!


Maybe it should read: Disable S/PDIF

Instead of: SPDIF (disabled)


Cheers

[E-Male]

Originally posted by Mitchjs
...and it was encoding to AC3

My video played back at 32fps instead of 29.97
and the audio was piched up...

but it didnt hang or stop encoding...

29.97/32 ~= 44.1/48

so it might be caused by 44.1khz audio played as 48khz and the video somehow gets synced

[Mitchjs]

YES

so it might be caused by 44.1khz audio played as 48khz and the video somehow gets synced

I was watching(trying) Futurama SVCD encode from TV
44.1k audio

so what happend? i ofcourse went back to something other then AC3Filter rc5 for MPEG2 audio...

mitch

[DSPguru]

Originally posted by oddball
As to those people talking about licenses etc I say 'GET LOST!'. hmm... i cannot agree with you.
Gibalou is the author of libdts, and this community owes him alot ! actually, a dts decoding library was the missing ingredient of our community for years.
Valex is aware of the GNU PUBLIC LICENSE and i have no doubts that the source code will be available someday. but Gibalou, being libdts author, which the addition of thiZ component into the new version of ac3filter has the biggest effect, has all rights to ask Valex to credit him for his awsome work, and also publish the sources.

so, please, i suggest that we let the two gentelmen discuss this without our intervention.

[Jvdhorst]

Hi Valex,

I love the ac3 codec, but I have some issues using the new versions. I use Joveplayer (http://www.8dim.com) beta3 in pc display mode to play my avi's. It uses direct3d and VRML to display the movies. When I start using the new releases of ac3filter however playback is allways very choppy. When playing a DVD (using opensource DVD video decoder) in combination with the AC3filter RC5 the program shows the first frames of the dvd and then freezes on 100% cpu usage. All is fine if I just use AC3filter 0.7. But then my dts dvd's don't have sound (I use Cyberlinks Powerdvd 5 audio decoder for that now to passthrough). I'v used Radlight filtermanager 1.4 to remove all other possible ac3 decoders and other redundant decoders. Play back in wmp9 is fine. So maybe it's a incompatibilty with the direct3d/VRML renderer? Or would it be joveplayer not handling the codec well, being beta and all?

I use ffdshow of 20-5-'04 to decode the video (of course with ac3 decoder disabled). Furthermore my winxp SP1 is patched to the max.

edit: using another MPEG4 or dvd video decoder doesn't make a difference at all.

[basje]

I think everybody should stop the assholing about the sourcecode. I am a coder myself and I can understand if Valex wants to wait with publishing the sourcecode right away, while he is still doing RC releases.

Eventually when there is a final version, he will post the sourcecode. Until that time I think everybody should stop asking for it and just eagerly wait for a new RC or Beta release.

Groeten,

Bas

[DSPguru]

Originally posted by basje
I think everybody should stop the assholing about the sourcecode. I am a coder myself..you might be a coder, but you are not libdts's coder, so this makes your argument completely irrelevant.
and you should also watch your langauge! dirty talks will not help you to convince anyone.

now, personally, i have no interest in ac3filter's source-code. even if i had, i could wait until the code become public. but as for Gibalou, i think he deserves to get an email from Valex with current sources.

i think Gibalou is right - with this kind of community - you just don't deserve his work. i won't be surprised to find out he lost motivation to continue his work on this library.

@basje
idea : if you're a coder, how about you read the dts spec, then implement a dts decoder, then release it with a i-dont-care-about-anything license ?!
i'm sure this could solve all problems..

[basje]

OK, maybe I let myself go a little bit to far with the language, I just don't want anybody, especially Valex and Gibalou, to stop there good work because of this discussion.

now, personally, i have no interest in ac3filter's source-code. even if i had, i could wait until the code become public. but as for Gibalou, i think he deserves to get an email from Valex with current sources.

I totally agree with you on this.

So to make this to an end: Valex mails the sourcecode, an admin closes this thread and Valex starts a new one when he finishes RC6. This way this discussion ends and I hope everybody is happy.

Groeten,

Bas

[Evil Andy]

Can we all put a lid on the source code argument? To quote from the copy of the GPL that COMES with AC3Filter.

For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.

Valex has a duty to supply source code to anyone who asks for it, or remove all GPL code from his program which at this stage would be rather difficult.

Now, it's a great program which many people have helped create and would like to go on helping to improve so can we all please just settle this and get back on track.

[tiny]

Hi there,

I took AC3Filter_1.01a_RC5 and did some tests with it. I specificly tested the passthrough of non-pcm streams to the SP-DIF output of my soundcard. Here are my results:

AC3 44.1 KHz: no passthrough, always decodes
AC3 48 KHz: passtrough ok

DTS 44.1 KHz: no passthrough, always decodes
DTS 48 KHz: passthrough ok

MPEG1 layer II 44.1 KHz: no passthrough, always decodes
MPEG1 layer II 48 KHz: passthrough ok (my amp has a MPEG Multichannel decoder)

soundcard: Terratec EWX24/96
player software: GraphEdit

The emerging pattern is clear, SP-DIF passthrough only works for streams at 48 KHz. AC3 encoding also only works at 48 KHz. This is a bug perhaps?

greatings,
tiny

[dimzon]

Originally posted by DSPguru
hmm... i cannot agree with you.
Gibalou is the author of libdts, and this community owes him alot ! actually, a dts decoding library was the missing ingredient of our community for years.
Valex is aware of the GNU PUBLIC LICENSE and i have no doubts that the source code will be available someday. but Gibalou, being libdts author, which the addition of thiZ component into the new version of ac3filter has the biggest effect, has all rights to ask Valex to credit him for his awsome work, and also publish the sources.

so, please, i suggest that we let the two gentelmen discuss this without our intervention.
:goodpost:

[oddball]

Got a problem with the new builds of AC3Filter. If I enable AC3 passthru under the main tab it works great for AC3 passthru. However when I playback a PCM type file (MP3 in an AVI for instance) it always encodes to AC3. I don't want it to re-encode to AC3 (Unless it does it without the nasty artefacts I am experiencing when it does).

If AC3 passthru is enabled I want it to passthru AC3 and NOT encode MP3, Ogg or anything else.

The AC3 encode sounds terrible! It is putting horrible artefacts into the audio stream.

EDIT: M-Audio Revolution 7.1 BTW with latest drivers. I get a similar sort of artefacting if I enable WinDVD's audio speedup option in ReClock when it tries to pitch correct a movie that is play at 25FPS but if you want to keep the pitch at the 23.976FPS rate. No such issues when letting the audio go direct with no on-the-fly type re-encoding. I'm wondering if it's a similar issue to the one I am experiencing with on-the-fly AC3 encoding.

[tiny]

@oddball: try unckecking the pcm checkbox on the system tab of the AC3Filter properties

[oddball]

Well that prevents AC3Filter from being used at all for non-AC3/DTS which solves the problem but does not really answer the question as to why AC3 encode causes artefacts. Shrugs.

Thanks for the tip anyhow.

[crlorentzen]

I am confused on the system tab about the different formats. I get what AC3 and DTS would mean... but what about MPEG Audio does this mean MPEG Layer II or III?

PCM? what does this control? I know it means Pulse-Code Modulation.

I guess I just need more explainations. such as what formats each controls

AC3
DTS
MPEG Layer 1, 2, 3, 4...etc
WAV
OGG
...any other formats. Thanks.

[KpeX]

crlorentzen:

AC3Filter is now matrixmixer replacement as well, which means it can be set for all audio to pass through it before it is rendered (PCM checkbox). When checking PCM, AC3Filter will be inserted in the graph after the decoder filter for other formats it doesn't support, such as Vorbis or AAC. This can be useful for encoding to AC3 on the fly or upmixing channels.

Although Valex will need to confirm, I believe MPEG audio support in Ac3Filter is currently layer 1 and 2 only. On an earlier page in this thread, Valex explained the reason for this, that these formats are used on DVDs.

[crlorentzen]

@KpeX, thanks for the explaination. I was unsure why when I deselected MPEG Audio b4 that it still loaded on my MP3 streams...but now I understand.

Great explaination. and thank you for the timely response, there is such a good community here at Doom9.

[Socio]

Finally my 5 day wait period is up and I can post!

First, I would like to add my thank you to Valex to the list of appreciative AC3Filter users. I hope he continues his work on the filter and I have my fingers crossed but my gut tells me that he has left the building so to speak.

Second, Not to beat a dead horse but I have been waiting five days to say something so I am going to say it;

Does anyone know if this Gibalou person is even who he says he is? I mean he has made 4 whole posts yet people are defending him like he is a well know entity around here. For all anyone knows he could just be a poser trying to capitalize on Valex’s work. I know I am brand new here but it seems to me Valex has proved his worth to this community and Gibalou has proved he can make 4 posts.

Ok got that off my chest!

[neo75903]

Hi Valex, i think one of the most wanted feature is to support 44100.
I have lots of video material encoded to 44100 becoz Nero HE-AAc encoder currently only supports 44100. Or am i the only stupid enough to have it all on 44100 sample?

Thx, RC5 works like breeze for local files, DVD playback issue is still on, looking forward for next RC.

[Wilbert]

Does anyone know if this Gibalou person is even who he says he is? I mean he has made 4 whole posts yet people are defending him like he is a well know entity around here. For all anyone knows he could just be a poser trying to capitalize on Valex’s work. I know I am brand new here but it seems to me Valex has proved his worth to this community and Gibalou has proved he can make 4 posts.

Ok got that off my chest!
You made a very bad start with this post. His name is Gildas Bazin, writer of the code of libdts:

http://www.videolan.org/dtsdec.html

[Jolaes]

Hello everyone,

I am new around here. I read this thread back and could not find an answer for my question so I decided to post it here.

Could anyone suggest me a good article about how soundcard drivers and directshow filters, decoders work together ?

My specific question is how could I find the optimal matrix and output configuration for an analog-out system (SB Live and Creative 4.1 speakers).
I have noticed that Dolby II output sounds better and more accurate than the simple 4.1...
Could anyone please shed some light on that?

Many thanks,
Zs.Sz.

[KpeX]

Originally posted by Socio
Finally my 5 day wait period is up and I can post!

First, I would like to add my thank you to Valex to the list of appreciative AC3Filter users. I hope he continues his work on the filter and I have my fingers crossed but my gut tells me that he has left the building so to speak.

Second, Not to beat a dead horse but I have been waiting five days to say something so I am going to say it;

Does anyone know if this Gibalou person is even who he says he is? I mean he has made 4 whole posts yet people are defending him like he is a well know entity around here. For all anyone knows he could just be a poser trying to capitalize on Valex’s work. I know I am brand new here but it seems to me Valex has proved his worth to this community and Gibalou has proved he can make 4 posts.

Ok got that off my chest! As Wilbert correctly pointed out to you, Gibalou is who he says he is. Not every great AV programmer is active at Doom9 (just most ;)) However, even if he was not his claim is still valid, since libdts and other AC3filter source projects are GPL.

What has happened to Valex? Hopefully he will return soon.

[kelmk]

Someone told me that Prologic II won't upmix to 5.1. Is this true?

[neo75903]

Hi Valex,

wheter u are still here, just wanna report to you that 5.1aac works fine at 48k, so far.
Encoded Ice Age with headac3he-024a10a, aac at 96kbps.
Sound drops on and off when movie is about 12min and after. Very noticeable when u can hear the thunder and it is persistent.
It is less when switching to optical Dolby Pro II, less but still one or two drops.
My drop in sound is when my amps multichan indicator switching on and off.
The issue is abscent when outputting analogue

Player is MPC, filters off, CoreAAC.

[MoonWalker]

I have a question about the "AC3 Encoding" Feature of the Ac3 Filter.
Let's say I have a video files with mp3 sound(2ch). It gets decoded, then Ac3 filter comes and encode it to ac3(by default?)..How can I pass it to my external AC3 decoder? Even thought it sais that all the channels are used as an ouput, I only get 2Channel sound. How can I enable SPDIF for these streams. If I watch a movie with AC3 sound it's ok..

Thanks in advance,
MoonWalker

[oddball]

Too many cooks spoil the broth and too many programmers looking for credit cause projects to get held up ;)

[Shayne]

Originally posted by tiny
Hi there,

..... DTS 48 KHz: passthrough ok .....

greatings,
tiny

Settlings please if you would not mind? i have no optical out here. It does appear to be processing at least it plays (or appears to) without locking up.

Peace
.

[Covak]

Someone told me that Prologic II won't upmix to 5.1. Is this true?

The PLII setting in AC3Filter doesn't upmix. I think it encodes into PLII for an external decoder.

[gizmotech]

@ Valex.

Using MPC and TCMP for testing.
Video file tested w/ mkv file muxed w/ 0.8.9
Audio:
1 OGG 2ch q4 audio
1 5.1 HE-AAC audio

Problem:
It doesn't appear as if the filter is connecting itself to all streams in a multi stream file.

After disabling all downmixing in coreaac decoder to make sure 6 channels were active I proceeded to switch streams repeatedly. It seems to connect itself to the first activated audio stream (as far as the levels are concerned) however only uses the number of audio channels from the first listed audio stream. When the streams are switched via the player, the levels stop responding and the input channels don't change.

If needed I can provide a sample file, a thx sample I encoded off my nemo disc w/ 2ch ogg and 5.1 he-aac audio for testing.

Gizmo

[gulan]

Hi, sorry for my unexpirience but I totally lost it (or never had it)

I know this is a RC but I upgraded from 070b to test something:

My computer is linked with my external receiver via optical out. (mainboard IS7 to Sony receiver).
My avi's (zoomplayer) with AC3 were all send unencoded to my receiver (my receiver tells me then that an DD 321 signal is received). This was done by selecting SPDIF in the dropdownbox.

Whatever I try (and I read this forum over and over again), I don't seemed to be able to send an unecoded signal to my receiver: he always tells me it is an PCM 48 (in case of AC3 48 khz) signal, so I think this means it is already encoded.


Can anybody help me please?

What should I set mith output?
What means SPDIF (disabled)?
What is the exact meaning of the passthroughs?


thanks in advance...

[tiny]

By popular demand:

Settings for AC3 passthrough with AC3Filter 1.01a RC5 (this asumes you have a SP-DIF out on your soundcard and a external decoder):

On the Main tab of the AC3Filter properties screen: make sure the checkbox next to "SP-DIF" is enabled. The word "(disabled)" is somewhat confusing. If passthrough is in action this word will change to "(passthrough)" though. The pulldown menu with the channel-configuration is not used/relevant in this situation, because channel-configuration is left to your external decoder.

The settings on the Mixer tab have no effect when passthrough is used (hence the name...). The same is applicable to the Gains tab.

On the System tab the actual configuration of the streams to passthough is made. The checkboxes under the "use AC3Filter for..." heading are used to determine when AC3Filter is loaded. Note that if "PCM" is selected AC3Filter will also load if another filter decodes to PCM first (for example an MP3 filter). To use AC3Filter for AC3 streams check the appropriate box.

Next, under the "SP-DIF passthrough" heading the streams for which passtrough needs to be enabled are configured. For AC3 passthrough, obviously "AC3" needs to be selected.

Currently only streams with a samplerate of 48KHz can be passed through.

Hope this helps,
Regards,
tiny

:edit spelling:

[Socio]

Nice post Tiny!

I have a tip for Creative audio card users using the AC3filter;

I have the Creative Audigy2 and I get better results with the AC3filter using
KX Project drivers (http://kxproject.lugosoft.com/) instead of Creative drivers anyone with SBlive to Audigy2 ZS might want to try these.

Now I get channel for channel encoding meaning if the input signal is two channels I get two channels +sub encoded and if it is 5.1 input I get 5.1 encoded. Before with creative drivers no matter what the input signal was I got 5.1 output but not surround sound, it was more like five speaker stereo, I also get vob files to passthrough where they would not with the creative drivers.

*It should be noted the KX drivers are more tailored to musicians and audiophiles rather than gamers you will loose EAX capability but you will gain higher quality sound and fidelity.

**Also if you do want to try these drivers I highly recommend you get Driver Cleaner 3 (http://www.driverheaven.net/cleaner/) it will remove all traces of the Creative drivers before you install the KX drivers and if you decide to go back to Creative drivers it will remove all traces of the KX drivers.

[KpeX]

Originally posted by oddball
Too many cooks spoil the broth and too many programmers looking for credit cause projects to get held up ;) You are not understanding this situation. Until recently there was no open-source implementation of any kind of DTS decoding library. IMHO we the AV community owe Gibalou a great deal for this jump in technology. The least we can do is respect the license under which he released libDTS. I don't know where Valex has been the last few days but I highly doubt that the reason for his absence is the request for his sources and I am hopeful that he will release the source soon when he returns.

[KpeX]

neo75903:

Hopefully there will soon be a resampling solution for 44.1 khz streams, both AAC and 2-channel music, since it seems many of us have soundcards whose SPDIF only supports 48Khz. It will just be a matter of whether Valex is willing/able to implement it.

Jolaes:

There is little documentation on analog 4.1 output around, however the search will be your friend. Take a look at graphedit, this program will allow you to see every filter that is in use to render the audio to your soundcard. After the stream is rendered in the player, the only thing that will affect the audio AFAIK is your sound card driver, which may or may not be additionally modifying the sound. As far as implementing your own matrix, I'd suggest just starting with the 4.1 preset in AC3filter, tweaking values, and testing the results until you find one to your liking.

kelmk:

Yes, as already mentioned, the Pro Logic II is a downmix matrix and not an upmix, and mixes the audio to stereo w/ PLII for an external PLII decoder.

MoonWalker:

Along with setting the AC3 encoding feature and checking SPDIF output, you will also have to select an upmix matrix in the matrix tab to mix the stereo sound to 5.1. Also see tiny's post.

gulan:

You will need to check the SPDIF box and the AC3 passthrough box for AC3 SPDIF output.

tiny:

Thank you for an excellent explanation of options.

Socio:

Thanks for the tips for the ever-difficult Creative cards. :)

[Nic]

@oddball: Just to add to what KpeX has already stated; You have been striked because of your comments. You should have thought your self very lucky to get away with the "STFU" comment towards Gibalou. But to continue to show disrespect towards a forum member, especially someone who has given so much to the community (Gibalou has worked extensively on the VideoLan project), is completely against the forum rules. I hope you will take this graciously and learn from your mistakes.

-Nic

[jorel]

as a simple member, i can't understand why someone have something against developers(Gibalou and Valex’s)that give they work free for us all with grace. :confused:

and the worse...where is Valex? a long theys don't post! :(

[kelmk]

Yes, as already mentioned, the Pro Logic II is a downmix matrix and not an upmix, and mixes the audio to stereo w/ PLII for an external PLII decoder.

For output I use 3/2+SW 5.1 channel but if the source is PLII is it converted propery to 5.1? It seems to work for me but the source always say 2/0 (stereo). I'm trying to convince someone that it actually works. What algorithm is it using to decode PLII?

[Covak]

For output I use 3/2+SW 5.1 channel but if the source is PLII is it converted propery to 5.1? It seems to work for me but the source always say 2/0 (stereo). I'm trying to convince someone that it actually works. What algorithm is it using to decode PLII?

Not properly. AC3Filter doesn't do any PLII decoding. You're getting stereo upmixed to 5.1 the AC3Filter way, not the proper (for PLII sources) PLII way.

No algorithm is used. It's just treated like any other stereo material.

[kelmk]

Gottchya. So what is the AC3Filter way? It seems to be seperating some of the surround effects somehow and putting them to the rear speakers.

[gulan]

Thanks you all for your help but I'm not where I should be.

SPDIF (AC3 48khz) doesn't work for me in RC5 after your instructions:
* SPDIF is enabled
* SPDIF passthrough is on for AC3


still no sound to my receiver.

I have an odd thing: with these settings I can see in Zoomplayer that with an AC3 avi also "indeo(R) audio software" is loaded.
That doesn't happen with AC3filter 070b (where by the way everything works for me with SPDIF)

I also uses reclock 1.4

thanks anyway...

[Socio]

I don't know what AC3 avi also "indeo(R) audio software is and it is not loaded in my Zoomplayer.

What version of Zoomplayer are you running? If you don't have it yet you might want to upgrade to Zooomplayer Pro WMV RC2 that is the newest version. Once you do that open Zoomplayer, go to options/settings/mediaplayer and enable AC3 playback and set speakers to 5.1 Under DVD make sure AC3Filter is selected as your audio codec.

*Note none of the current releases of the AC3 filter beyond 70b seem to passthrough Dolby Digital encoded DVD's

[guada]

Very good work Alex :)

[prophet2004]

@Valex:

Am I doing something wrong when your ac3filter 0.70b introduces some kind of phase shift into the sound (tested with original 5.1 ac3 audio from Celine Dion "Color Of My Love" concert from 1996 on DVD and Star Wars Phantom Menace DVD movie)?
I am using Audigy 2ZS with latest creative drivers in Windows XP.
Computer is P4 Prescott 2.8E 1GB RAM.
Media Player Classic 6.4.8.2 plays the sound correctly as well as creative mediasource player. Any ideas?

[eCL|PSe]

I have a AudioExcel TheaterExcel AV515M which I belive is made by chaintech. I cant seem to get a raw signal out to my sony reciever. My Xvid/AC3 movies seem to be decoded before they get to my reciever and I end up with stereo output. I have followed the instructions listed on the forums and hve checked the SPDIF checkbox and the passthrough is enabled for AC3 DTS and MPEG audio. The use AC3 filter for.. boxes are all checked. Any ideas?

[Palikrovol]

Originally posted by eCL|PSe
I have a AudioExcel TheaterExcel AV515M which I belive is made by chaintech. I cant seem to get a raw signal out to my sony reciever. My Xvid/AC3 movies seem to be decoded before they get to my reciever and I end up with stereo output. I have followed the instructions listed on the forums and hve checked the SPDIF checkbox and the passthrough is enabled for AC3 DTS and MPEG audio. The use AC3 filter for.. boxes are all checked. Any ideas?

I think you have to uncheck SPDIF. If cheched then SPDIF is disabled.

[Mitchjs]

No


its pretty simple...

check the SPDIF BOX on the MAIN TAB
Check the SPDIF PASSTHROU on the SYSTEM TAB for AC3 & DTS(if ya got dts decoding on your av gear)


Now here is a BIG thing:

If using ZOOM PLAYER, you cannot use the internal DSP/AUDIO EQ Filter
disable(uncheck on the SETTINGS TAB in the filter control)

Blight will have to look in to this... cause ZOOM PLayer is by far
the best!

Two checks if u want to use SPDIF and PASS AC3!!

if you dont want to use SPDIF the box on the main tab is unchecked!


hope this helps
mitch

P.S. I hope Valex didnt get scarred away...we need him!!

[eCL|PSe]

So the settings are right and Zoom Players EQ is disabled. It still doesnt work. I've tried other players too? Is there somethign special I need to do for my specific card?

[Mitchjs]

well... I dont know that answer

but i set it up on two different machines...

Piece of CAKE!


so, you're using zoom player?

what is the media your playing back

avi with ac3? dvd with ac3?

does the filtergraph include AC3Filter as the audio decoder
and not as the post processing?

mitch

[pogo stick]

It's very sad that situation with licenses comes to this. :(
I guess, this is just big misunderstanding.
And posts like 'get lost' will never help anyone.
Valex, Gibalou, there must be a way to arrange it and shake hands!
Please, don't stop your work!

[eCL|PSe]

Ok after enabling SPDIF in WIn DVD it works for dvds and .avi w/ ac3. But i dont think it uses ac3 filter for processing so it doesnt really solve the problem, and it emits and odd noise on the computer speakers when its decodes, although it sounds fine on the reciever. So what i ve deduced is that the card is fine its something with the filter. I've used Zoom player and winamp to play the .avi w/ ac3 and both send a pre-decoded signal to the reciever.

[neo75903]

Have you unchecked the SPDIF passthrough for AC3 in System tab?

[gulan]

Originally posted by eCL|PSe
So the settings are right and Zoom Players EQ is disabled. It still doesnt work. I've tried other players too? Is there somethign special I need to do for my specific card?

Seems that I have the same problem (read my postings before).

Have checked everything right but still it is decoded.
I also mentioned that in that case (AC3), indeo audio software is loaded together with AC3filter(Indeo does the decoding?).
When I refuses indeo to load in Zoomplayer than he takes my Intervideo audio decoder. So you see he won't let it passthrough.

hopes someone comes with an answer or Valex with a fix.

[neo75903]

Use Multi Media Classic
when playing a file, goto Play>filters, there u can figure out what filters are being used, and if AC3 is active.
Remember that AC3filter only supports 48khz sound.

[Donald24]

Hi there,

my first word is - thank you - for this excellent piece of software, I am using it for a very long time now.

Short question regarding "bass redirection"

The Creative Audigy drivers have a bass redirection function, that is really crap, because it causes a gap between tweaters and subwoofer - frequencies left out. I'd like to turn that off for movies, but I am tired to set it back for stereo-listening.

So short as it gets:

Can the bass-redirection in Ac3-filter bypass - by any means - the audigy drivers bass redirection? Or is it not possible.

TY

[eCL|PSe]

Ok thanks, Media player classic works perfect. Im not sure what the deal was with zoom player. is the any way to get rid of the buzz that shows up on the computer speakers? and is there a way to get the ac3 filter to just send whatever the stream is on the .avi direct to the reciever? right now it just sends what ever you choose on the output (3/2+sw, pro logic ect) i imagine you can just analyze the file and match up whatever it is and choose that for the filter, but i would like it to just auto recognize it and send that. That way i dont have to change the filter everytime i play a different file.

[gulan]

Originally posted by Mitchjs
No


its pretty simple...

check the SPDIF BOX on the MAIN TAB
Check the SPDIF PASSTHROU on the SYSTEM TAB for AC3 & DTS(if ya got dts decoding on your av gear)


Now here is a BIG thing:

If using ZOOM PLAYER, you cannot use the internal DSP/AUDIO EQ Filter
disable(uncheck on the SETTINGS TAB in the filter control)

...

thanks, that did it!

Zoomplayer-users: turn off internal Eq filter!

[Frisco]

Thanks Mitchjs

The zoomplayer setting was also my problem. Now RC5 also work for me.

Thanks for the filter, Valex. I hobe you vill be back. I use your AC3Filter nearly every day.

Frisco

[jorel]

Originally posted by Frisco
Thanks Mitchjs

The zoomplayer setting was also my problem. Now RC5 also work for me.

Thanks for the filter, Valex. I hobe you vill be back. I use your AC3Filter nearly every day.

Frisco

the same here and with media player classic works very fine too!
i hope you will back soon too Valex, great job and thanks!
:)

[aleph9]

Valex there is a problem with ac3filter and morgan stream switcher: when playing multistreamed avi only first audio stream played at correct speed (if both filters are active) when I switch to another stream then sound and video played at wrong speed - abot 2 times faster. could you please take a look at the problem?

[Beatles]

Valex is gone for good.

[SeeMoreDigital]

Originally posted by Beatles
Valex is gone for good. Why do you say that?

[Sycho]

yes, please expand on that point

[SMF007]

Well, I have a request. Since my amp has all the remixing stuff, how about an option so that it only upmixes (and transcodes to AC3) sources that have more than 2 channels? All 2 channel sources would stay as 2 channel PCM.

[SeeMoreDigital]

Personally I would quite like a new stream allocation interface. Something like this: -

http://82.2.167.24/Uploaded_Files/Doom9_Forum_files/Proposed_AC3Filter_GUI.gif

Of course, more stream types could be added as the filter progresses.


Cheers

[neo75903]

also add an category for number of channels, which might be handy in case for listening music or 2 channel stuff

[m99]

Originally posted by Beatles
Valex is gone for good.

Bullshit? I really hope so.

[SeeMoreDigital]

Ok neo75903,

http://82.2.167.24/Uploaded_Files/Doom9_Forum_files/Proposed_AC3Filter_GUI_02.gif

If it was only this easy to make the application :D

It's nice to dream.

[neo75903]

hehe
it all starts with a dream isnt :)

[rjamorim]

Originally posted by Beatles
Valex is gone for good.

LOL! Randar? Is that you?

[egandt]

I have gotten the AC3Filter to work through both WMP9 and ZP playing WMV media.
AC3Filter input shows as:
PCM24 3/2+LFE (5.1)
Output on receiver: 5.1SW DD

For MP3 audio I'm using the "Moonlight Odio Dekoda" then passing the output to AC3Filter this also works:
AC3Filter input shows as:
PCM16 2/0 (Stero) 48000Hz
Output on receiver: 5.1SW DD

For MPEG Audio I can not get any output, I'm using the AC3Filter directly and it shows the correct type of input:
SPDIF/MPEG Audio:
speaker: 2/0 (Stero)
sample rate: 44100Hz
stream 8bit
frame size: 732bytes
nsample: <an increasing number>.
frames/Errors: ,an increasing number>/0
Hoeever I receive no output nor an moving bars within the Levels area of the Main tab.
Output on receiver: None.
What am I doing wrong with MPEG audio?

Zoomplayer Settings:
Filter Control->Settings: Use Internal Equalizer (unchecked)
DVD->DVD Setup->Customized: Disable internal DSP (checked)
AC3Filter Settings:
Main
Output: 3/2+SW/5.1 channels
PCM 32 bit
SPIF (disabled) (checked)
Mixer:
Audio Gain (checked)
Audio Mix (checked)
Bass redir (unckeced)
Gains:
No changes made
System:
Under Use AC3Filter For: (all checked)
Under SPIF passthrough (all checked), except for MPEG
Prefer AC3 (selected)
Use Direct Sound (selected)

I thought it might be the MPEG! Aduio decoder in AC3Filter so I setup MPEG1 Audio to be decoded using "Moonlight Odio Dekoda" so the output is the exact same as from MP3 audio, however I yet again receive no output? Any suggestion as to what I'm doing wrong?

Is there any know issues with non 48000Hz audio re-encoding?, as everything I have that does not output DD sound is a non 48000Hz audio?

Thanks,
ERIC GANDT

[eCL|PSe]

Yes-

anything with a 44khz sample rate will not work. hopefully future versions will be able to re-sample these sources so they can be used.

[Rash]

Humm, just to check if I'm up to date. Which is the latest AC3 filter version? RC5?

[neo75903]

RC5 is latest

[oddball]

6 channel Ogg in MKV confuses AC3Filter it would seem.

[basje]

Hi,

does anybody know what the ETA is for RC6 or a final version?

Groeten,

Bas

[E-Male]

as you don't seem to have read the thread:
the programmer hasn't posted here for weeks

[basje]

Originally posted by E-Male
as you don't seem to have read the thread:
the programmer hasn't posted here for weeks

I did read the thread, I actually posted somewhere in it. But because Valex hasn't posted for such I long time, I was just wondering how the progress was (if there was any).

Bas

[E-Male]

well the question should rather be if valex still works on it or on anything for this comunity

[basje]

Then let me rephrase the question: Is there any way we can make Valex clear that his work is very much appreciated by a lot of people. People that cannot work without AC3Filter anymore. People who are addicted to AC3Filter. So that he will continue the fantastic work he has done so far. Please?

[orulz]

I suspect (and hope) that Valex has just decided to stop public testing of AC3 filter pre-releases and has gone to private development. With the use of the GPL, you are obliged to make your source code available along with any binaries. Problem is, it's rather a pain in the butt to wrap up and distribute the source code each time you make a release candidate, not to mention there may be any number of places left in your source code that you want to clean up before giving it to anyone else. With all due respect, the GPL states that if you can't release your code, then you're not to release binaries (be them release, RC, beta, or whatever.)

We'll probably see a source + binary release of AC3Filter 1.01 once it's finalized. I hope.

[basje]

I certainly hope you are right (perhaps Valex could confirm). I will be waiting patiently until the next release. In the mean time I will continue enjoying AC3Filter RC5.

[oddball]

RC5 cannot decode Ogg 5.1 and HE AAC 5.1 correctly. It only decodes as 2 channels. Also tried MatrixMixer and it did not help. Would be nice to decode all 6 channels correctly and reencode to AC3 SPDIF out.

Hmm. I figured out that AAC had decode to 2 channels enabled in it's own decoder filter. Doing some testing now but it's looking more promising.

[SeeMoreDigital]

Originally posted by oddball
RC5 cannot decode Ogg 5.1 and HE AAC 5.1 correctly. It only decodes as 2 channels. Also tried MatrixMixer and it did not help. Would be nice to decode all 6 channels correctly and reencode to AC3 SPDIF out.

Hmm. I figured out that AAC had decode to 2 channels enabled in it's own decoder filter. Doing some testing now but it's looking more promising. Try downloading my

AAC-LC 6Ch Speaker Test (http://82.2.167.24/Uploaded_Files/Doom9_Forum_files/AAC-LC_6Ch_Speaker_Test.zip)

Coz it works perfectly on my set up. Via analogue output and digital output - the little Dolby Digital logo flashes up on my DSS amp and everything!


Cheers

[oddball]

It's OK after I switched 2 channel downmix off in the AAC decoder things played back perfectly.

[Rash]

Yep, it worked for me as well. ;) Cool!

[neo75903]

Hi ur test file works fine when DD out and multichan out. When i downmix my output, i only get sound from front en center speakers, is downmix not supposed to have 2 channels carrying 5 channels information and decodec by my Dolby Pro Logic amp?

the results with downmix:
- Back R/L are played by Front R/L
- LFE not availabe (this one i understand)

[SeeMoreDigital]

Originally posted by neo75903
Hi ur test file works fine when DD out and multichan out. When i downmix my output, i only get sound from front en center speakers, is downmix not supposed to have 2 channels carrying 5 channels information and decodec by my Dolby Pro Logic amp? Interesting!

I'll be honest, I have not checked the filters down mixing capabilities, so I don't know how accurately AC3Filter is able to keep the channel mapping!

If anyone else is interested, I have a few more 6Ch 'speaker test' files like this on my web site you can try!


Cheers

[neo75903]

i think that would be nice, very handy for setting up a system, and a file which is confirment to have right channel mappings minimize the possibility of faulty mappings from own encodings.

[Pitou]

Hello,

I'm trying to play a dts vob with zoom player, but it doesn't work.

DS filters installed: Universal mpeg splitter, universal mpeg video decoder, ac3filter RC5.

When I open the vob file in graphedit, I get the following.

filename --- Universal mpeg splitter --- Universal mpeg video decoder ---- Video renderer
--- Nero Digital audio decoder --- Ac3filter --- direct sound renderer

I have Nero burning rom installed, So I unregistered all nero filters, but when I re-open the vob file I get the following.

filename --- mpeg2 splitter --- Universal mpeg video decoder ---- video renderer

When I connect manually all filters, I can get the vob working, but it can't do it automatically and I don't want to play with customized playback in ZP.

Any idea?

[Pitou]

I also played with the Merit system with no success.

It seems that Universal mpeg splitter doesn't output correctly the right thing or ac3filter is not a recognizable valid filter for DTS according to Windows.

Pitou!

[SeeMoreDigital]

Pitou,

Sounds to me like too many filters are being used!

I've tried AC3filter with WMP9, MPC and BSplayer and it seems to OK with Mpeg2/DTS in VOB and Mpeg4/DTS in AVI.


Cheers

[Pitou]

What is your mpeg splitter and mpeg video decoder?

Could you take a snapshot in graphedit?

Thanks.

Pitou

[SeeMoreDigital]

Originally posted by Pitou
What is your mpeg splitter and mpeg video decoder?

Could you take a snapshot in graphedit?

Thanks.

Pitou Sadly I'm going to have to revise my BSplayer statement!

I've just reinstalled BS player on my new HTPC and it does not work. So I will have to find out why it does not work on this PC but does on my other. When I work out the settings I will let you know!

In the meantime however, I can confirm that WMP9, MPC and even Nero's ShowTime Player does work!

Have you tried MediaPlayer Classic... it's bloody good you know?


Cheers

[Pitou]

ok I'll wait for your settings.

I already know about media player classic, but since all players I tried rely on directshow filters, it doesn't make any difference.

Thanks.

Pitou.

[SeeMoreDigital]

Originally posted by Pitou
...I already know about media player classic, but since all players I tried rely on directshow filters, it doesn't make any difference. It would be nice if this was the case. However, as most players improve they tend to include more and more built in features and filters, so on player can indeed carry out functions that others can't!

I must admit I do prefer MPC over BS player because of this.


Cheers

[yevaman]

Originally posted by basje
I certainly hope you are right (perhaps Valex could confirm). I will be waiting patiently until the next release. In the mean time I will continue enjoying AC3Filter RC5.

VALEX , If U read this tread , can u confirm that u are still working on ur filter please ?

[bokus70]

SeeMoreDigital said:
If anyone else is interested, I have a few more 6Ch 'speaker test' files like this on my web site you can try!
I am very interested. Some AC3Filter versions don't work on my system, some do. For example, rear speakers are not working since version 1 came out. I am still using 0.70.

That's why I will be very pleased if you have some AC3 or DTS 6ch tests to share, thank you very much! :)

[SeeMoreDigital]

Just hop along to my web site and look in 'Area 51'

Once there you will find 'A/V Setup Tests' and in there are some more 6Ch 'speaker test' files.

Currently I have made: -

AAC-HE, AAC-LC, AC3, RA9, WMA and WAV


Cheers

[neo75903]

kewl man.

[skynetman]

We need equalizer back !! ;)

[pogo stick]

Originally posted by skynetman
We need equalizer back !! ;)
Yes, we are. But first we need Valex back. :( (<- look at the sadness in the eyes of that little yellow face...)

[Tuning]

Originally posted by pogo stick
... first we need Valex back. :( (<- look at the sadness in the eyes of that little yellow face...)

:(:(:(:(:(:(:(:(

Yes me too have the same feeling. :(

Valex, please comeback and please dont dropdown ac3 filter developement.

PS: I think releasing src will be good for further developemnt if you are stopping its work. :rolleyes:

[obieobieobie]

Very sad if Valex has stopped development.

Gibalou should have contacted Valex by email instead of posting it on a public forum.

[vijv]

is valex still alive cos people usually at least reply?

[Tanshu]

This is so sad. :( I am addicted to AC3Filter.
Hope everthing is fine with Valex in his personal life and also he and Gibalou work it out with themselves and the develpment of both projects goes on.
Also, thanx to Gibalou for his DTS library.

Hoping for the best. :)

[Beatles]

Valex is not coming back.

[athos]

Originally posted by Beatles
Valex is not coming back.
Do you have anything to back this statement up, or is it more like those unsubstantiated rumors like "Jesus is coming"?

[neo75903]

I surely hope Jesus is coming, he has a lot to explain :)

[SeeMoreDigital]

Originally posted by neo75903
I surely hope Jesus is coming, he has a lot to explain :) So has Elvis... and if you squint your eyes up, they kinda look the same... but that might be the drink :D


Cheers

[neo75903]

wow, what an enlightment. I am ready to believe ;)

[gabbe]

athos,
I've read somewere (in the ffdshow thread?) that milan is / was working on audio decoding in ffdshow. Do You think its possible for him (or any other) to incorporate ac3filter functionality (DD5.1 encoding for example) in ffdshow?

tack så mycket for the ffdshow builds

[athos]

Originally posted by gabbe
athos,
I've read somewere (in the ffdshow thread?) that milan is / was working on audio decoding in ffdshow. Do You think its possible for him (or any other) to incorporate ac3filter functionality (DD5.1 encoding for example) in ffdshow?

tack så mycket for the ffdshow builds
ffdshow has some audio capabilities, but imo they are worse (less stable) than ac3filter or mpc. but since a lot of this functionality is in ffmpeg (which ffdshow is based on) it should be possible. also ffdshow allready uses libmad for mpeg audio decoding, and i would imagine libdts should not be impossible either.

however, i think that milan is focusing on other parts of the codec, so i think it would be good if someone else would take a look at the audio parts.

[MarkCoolio]

Good news: Valex is alive and already posting in his sourceforge project forum again :)

This is taken down from this forum. Lets hope he manages to find some time again to work on ac3filter:

By: Nobody/Anonymous - nobody
RE: When Can We Expect A New Version?
2004-07-05 00:49

Hi, I have been using AC3Filter 1.01a RC5 for a while now and was wondering when a new (final or beta) version will be released?

Buzz



By: Valex - xvalex
RE: When Can We Expect A New Version?
2004-07-05 13:47

Let me keep silence here... I do not know answer to this question too. I have a full-time job, so sometimes I have to work there :).


By: Nobody/Anonymous - nobody
RE: When Can We Expect A New Version?
2004-07-05 14:23

I fully understand (same here), and will be eagerly waiting.

Buzz


By: Valex - xvalex
RE: When Can We Expect A New Version?
2004-07-05 14:30

Thanks :)

[E-Male]

so we'll just wait and wait and ...
and someday BOOM, suprise, wow, NEW VERSION:cool:

[pankov]

Didn't we wait long enough?
Does anybody know what's happening with Alex?
Is this all about licensing or there are other issues?

[Beatles]

Originally posted by pankov
Didn't we wait long enough?
Does anybody know what's happening with Alex?
Is this all about licensing or there are other issues?

Alex is not coming back.

[pankov]

why are you so sure?
do you have any internal info that's not known to the public?
if suppose you are right then what's happening with the latest sources? has someone else taken over the work?

[rjamorim]

I don't know if it's the same person, seems to be, so:

Beatles, aka Randar, is a very famous troll. He goes around forums and IRC channels spreading misinformation as if it was going out of fashion. He got banned from HydrogenAudio, r3mix and Audiocoding.com. He also got banned from HydrogenAudio, foobar2000, and Vorbis IRC channels, and ultimately was k-lined from freenode.

The best way to deal with him is to ignore him.

[SeeMoreDigital]

Originally posted by rjamorim
I don't know if it's the same person, seems to be, so:

Beatles, aka Randar, is a very famous troll. He goes around forums and IRC channels spreading misinformation as if it was going out of fashion. He got banned from HydrogenAudio, r3mix and Audiocoding.com. He also got banned from HydrogenAudio, foobar2000, and Vorbis IRC channels, and ultimately was k-lined from freenode.

The best way to deal with him is to ignore him. I wonder why people would want to do this?

[Wilbert]

..., but I think he is right here :(

afaik, ac3filter_1_01a_rc5.exe is still the latest version. Source not available ...

@pankov,

The latest source which is available is the 0_70b version.

[rjamorim]

Originally posted by Wilbert
..., but I think he is right here :(

Well, just check the post by MarkCoolio, written on July 10th. There is hope. And if Beatles really has behind-the-scenes information, he should quote it here and not go around spreading rumours.

[SeeMoreDigital]

So, are we saying nobody has heard anything or seen anything revised/new from Valex since July?

I hope nobody here has upset him... we all need people like him... in whatever capacity he wishes to release his work!


Cheers

[Beatles]

Yes he was upset and chased off by people insisting he release the source...which he SHOULD have done. Either way he won't be coming back here.

[SeeMoreDigital]

Originally posted by Beatles
Yes he was upset and chased off by people insisting he release the source...which he SHOULD have done. Either way he won't be coming back here. Would that be people like you?

What can you offer us Beatles if he did release his source code?

[Beatles]

Originally posted by SeeMoreDigital
Would that be people like you?

What can you offer us Beatles if he did release his source code?
No it wasn't me. Read the thread and see if what passes for your brain can comprehend even a portion of it. Moron. :D

[SeeMoreDigital]

I don't think that comment was called for Beatles even if you did finish it with a smiley face!

There's really no need for you to be as rude as this. Please apologise or I will request a moderator to strike you!

[Beatles]

Originally posted by SeeMoreDigital
I don't think that comment was called for Beatles even if you did finish it with a smiley face!

There's really no need for you to be as rude as this. Please apologise or I will request a moderator to strike you!

And there was NO NEED for a comment like was that people like you. You should have read the thread before making an imbecillic comment like that. Go ahead and "tell the teacher". Loser.

[rjamorim]

Hehe. I was right, this IS the same Beatles :D

I guess he won't last long here either...

[Beatles]

Originally posted by rjamorim
Hehe. I was right, this IS the same Beatles :D

I guess he won't last long here either...

*FUD and profanity removed by moderation*

[SeeMoreDigital]

Originally posted by rjamorim
Hehe. I was right, this IS the same Beatles :D

I guess he won't last long here either... Agreed... At least it only took around a dozen posts to find out his true worth!

Cheers rjamorim

[KpeX]

Beatles has been taken care of. My thanks to SMD and rjamorim for not losing your temper in light of such disrespectul insults. I'm going to leave this thread open in the hope that Valex will return with his source code/ a new version.

[SeeMoreDigital]

Thanks KpeX,

Valex, please get in contact with somebody on the forum. At the very least to let us know you're ok?


Cheers all

[dcoder]

Just in case Valex is still reading, i´ve found 2 Bugs so far in RC5.

1) Reconnecting the Input Pin with connected Output Pin results in a Dead Lock.
2) The Channel Mapping in WaveFormatExtensible is wrong. I´ve played a SVCD (2 Channel MPEG Audio) with a 3/2+Sub Setup and the Channel Mapping received was 4. Switching to 2/0 and back to 3/2+Sub resets the Channel Mapping to the correct Value of 63.

[kingmob]

I'll post my question here.
I suddenly have some serious issues with ac3filter and i cannot figure out where it went wrong. Today i watched a series fine, but when i wanted to watch another episode tonight i had no sound.
Some analizing made clear freaky things where happening to the matrixmixer ability i am using in ac3filter. In some i can hear some sound in the distance and others i can only hear music. This is all when mapped to a 5.1 setup. When i set it to 2.0 stereo, i get perfect stereo sound. It just doesn't make sense, it worked fine and i didn't install anything related to sound encoding/decoding in the meantime. I'm just hoping it's a common problem, since it doesn't look like ac3filter will ever be updated again.

[oddball]

I have a feeling this project is now dead in the water.

[neo75903]

Hopefully Nvidia will come out with soundstorm2 so we dont need ac3filter anymore :)

[oddball]

Eh? Soundstorm 2 is hardware not software. My AC3 out works fine thanks and works well with AC3filter etc. Perhaps ffdshow's AC3 filter option will get as good as if not better than AC3filter.

[Evil Andy]

Is ffdshow open source? If it is then AC3Filter could be incorporated into it as that's an open source project as well.

[milan]

Is ffdshow open source?

Yes.

If it is then AC3Filter could be incorporated into it as that's an open source project as well

Some parts of ac3filter are already in ffdshow (matrix mixer). ac3filter is using it's own ac3 decoder (maybe originated in liba52) and ffdshow uses plain liba52. Probably it would be useful to compare these two libraries and select the best one. ac3 encoder would be interesting too.

But AFAIK the problem is, the source code for 1.0RC versions isn't available.

[neo75903]

Nvidia Soundstorm encodes any streams to AC3. It saves a couple precent of your cpu and i think it also works for not directx streams as for Apple Quicktime, Videolan, etc, ...

[rjamorim]

Originally posted by neo75903
Nvidia Soundstorm encodes any streams to AC3. It saves a couple precent of your cpu and i think it also works for not directx streams as for Apple Quicktime, Videolan, etc, ...

Yes, but a directshow filter should contemplate all users, not only Soundstorm users :)

[celtic_druid]

ffdshow already does AC3 encoding, it is under the audio output settings.

[gft]

I have kind of unusual use for AC3Filter, but it almost works. I'm wondering if anybody here knows how to solve my problem, and if not, perhaps AC3filter could include this functionality in a future version.

Basically, what I'm trying to do is

AC3 SPDIF -> Audigy 2 platinum SPDIF in -> Stereo x2

The audigy has the built-in ability to decode external AC3 sources, but the problem is that the audio lags behind the video. This is why I would like to use AC3Filter. (if you know how to fix the audio delay using the standard creative method, please let me know, that would help a lot)

In graphedit, I can connect the audigy 2's audio input to AC3Filter and send the output to directshow output, but I get something like chirping noise. I've played with AC3Filter's settings, but I don't see any that help. I've also tried placing various intermediate filters, but none seem to do the trick. I hear it has something to do with "padding" the signal, perhaps.

I have the latest drivers. I'm in windows xp sp2.

[E-Male]

"chirping noise" - seems like the data is not decoded as ac3, but simply as pcm

[jimwhite]

He's back !!!!!!!!!!!!

check it out Here! (http://sourceforge.net/forum/forum.php?thread_id=1213158&forum_id=223837)

:D

:D

[rjamorim]

OMFG. Awesome :)

[jimwhite]

Now Guys.... Let's be nice and not chase him away again !!!!

:D

[SeeMoreDigital]

Very good news indeed...

Does anybody know whether a new version is available yet?


Cheers

[neo75903]

Impressive, Valex doesnt have a SPDIF soundcard. Maybe we should donate one to him, they arent that expensive anymore these days :)

Welcome Back Valex :)

[SeeMoreDigital]

Originally posted by neo75903
Impressive, Valex doesnt have a SPDIF soundcard. Maybe we should donate one to him, they arent that expensive anymore these days :) Agreed... I might have one somewhere and even an old "basic" DolbyDigital amplifier :D


Cheers

[neo75903]

u think he doesnt have a dd amp neither?
Man how did he pulled off AC3 filter anyway?

[MarkCoolio]

A new (alpha) version is available for testing: ac3filter_1_02a_test1.exe.

I won't publish the direct download link to it 'cos Valex wants to use this version to be intensively tested.

So, to get the version, you have to subscribe on his site and will get the link then in return.

Just subscribe on: http://lists.sourceforge.net/lists/listinfo/ac3filter-testing

So far he only has 11 volunteers who want to test this version.

[daphy]

What tests should one do to help the project?
I always have a lack of time... but some test will be okay.
Maybe Valex himself shoud (re-)join this thread to give us some further informations - I guess then there´ll be no problems in having only a couple of volunteers for testing :)

[neo75903]

Good point,

I can play with it all day, but dunn0 what u r after, maybe some testing procedure will help.

[E-Male]

did the link get to all members of the ML?
because i got almost no mails at all from the ML

[pankov]

I tried to subscribe to the AC3Filter-testing a few times without success
:(
I tried using different e-mail addresses but none of them received a confirmation e-mail.

Am I doing something wrong? How long should I wait for this confirmation e-mail?

[basje]

Originally posted by MarkCoolio
A new (alpha) version is available for testing: ac3filter_1_02a_test1.exe.

I won't publish the direct download link to it 'cos Valex wants to use this version to be intensively tested.

So, to get the version, you have to subscribe on his site and will get the link then in return.

Just subscribe on: http://lists.sourceforge.net/lists/listinfo/ac3filter-testing

So far he only has 11 volunteers who want to test this version.

I volunteered and subscribed, but did not receive any mail about a link. Nor can I mail the list. How come?

Bas

[E-Male]

i got mail now

[daphy]

@neo75903

I already did some software testings for a software development company: it´s not only playing around with the function of the application, you have to test fixed defined procedures on diffrent systems (OS) and environment (other installed and running apps).
This could take a lot of time :rolleyes: that´s why most developer run from beta1 to beta55 just to count on with RC1 to RC23 :D :D :D

[actionman133]

Originally posted by Solo
Thanky You Valex.

I can finally play DTS audio on my PC. Even my PowerDVD (which is supposed to include DTS support) never played it. Looks promising. Unfortunately I don't have DTS support on my amp to test the DTS pass through. But still, great stuff :D

chances are you've got the lite version of powerdvd. you have to by the full program to get dts support. i know because i had the same problem. but now with this it doesnt matter anyway!

cheers

[neo75903]

@daphy:
I am aware of that, but users from this forum can provide real world usage tests. We can confirm what does and does not works with what configuration and amps for example.

[daphy]

whats about the new build, does it finally support DTSWAV? :rolleyes:

[MacAddict]

Finally got the email confirmation this morning and was confirmed. I have no idea where the download link is though:confused:

[jimwhite]

I can't login, it won't accept either my name or password!

:rolleyes:

[E-Male]

log-in?
it's a ML

[sillKotscha]

ehrm, I guess valex would have posted this version here, too if he was willing to...

but as we could read above... he wants a closed test till now, so I think it's not a good idea to post hist testversion here...

my 0,02 €

[E-Male]

right, this post, expecially the link should NOT be hre in public

[Socio]

I think it is broke anyway, I get a "missing MSVCRTD.dll" error when I try to run it.

EDIT:
It works you just need that dll installed to your Windows/system32 folder.

If you do not have that dll you can get it here:

http://www.dll-files.com/dllindex/dll-files.shtml?msvcrtd

[E-Male]

gaaaaaaaaaah

[MacAddict]

It's not broken at all, just a little reading of the digest tells you the quick fix to the dll.

[Tony Maroni]

I tried to get into the mailing list, I also got a confirmation mail, which needs to be answered by another mail. Everytime I try to send my mail to scourceforge i receive an error message from the mailer-daemon:

<ac3filter-testing-request@lists.sourceforge.net>:
xx.xx.xxx.xxx does not like recipient.
Remote host said: 550-Postmaster verification failed while checking <x.xxx@xxxx-xxx.xx>
550-Called: xxx.xxx.xx.xx
550-Sent: RCPT TO:<postmaster@xxxx-xxx.xx>
550-Response: 554 Sorry, no mailbox here by that name. (#5.1.1)
550-Several RFCs state that you are required to have a postmaster
550-mailbox for each mail domain. This host does not accept mail
550-from domains whose servers reject the postmaster address.
550 Sender verify failed
Giving up on xx.xx.xxx.xxx.

Is someone familiar with this problem?

Thanks for your patience...

[SeeMoreDigital]

Don't panic guy's!

I've been testing the new builds (we are currently up to "Test3"), and things seem to be coming along very well ;)


Cheers

[neo75903]

Thnx SeeMoredigital I am looking forward for the next release. Actually the current release is working fine for me, only thing on my wish list is to upsample 44 to 48.

[Socio]

Some kind of wraper for it that would make it work with games would be awesome. It would just need something that would force any analog sound to be passed through the filter before going to the sound card.

[Tony Maroni]

@socio:
Yes that would really be awesome!!!
Then finally i could use my creative card in the way it was supposed to when i bought it...

I hope it will happen someday....

[Socio]

Originally posted by Tony Maroni
@socio:
Yes that would really be awesome!!!
Then finally i could use my creative card in the way it was supposed to when i bought it...

I hope it will happen someday....


Yep, I should mention that this idea is not mine it actualy came from someone named taz291819.

[Tony Maroni]

Last week, the european pr-guy from creative was sitting in a german tv-show called GIGA-Help (cancelled now) and was promoting their new software Audigy 4(calling it new hardware is purely wrong!!). The audience was asked to post questions for the guy, and luckily mine was picked.
Of course i asked when will Creative produce a fully EAX supported card with a Dolby Digital Encoder(Like Soundstorm for PC or in the XBOX). The answer was very disappointing!!
At first he pointed the big hit on the CPU. Well for me that sounds like a poor one... Even XBOX games can handle this with 733 Mhz, and further, why not support it in hardware?? This can't be so hard...

Then he said the quality would be too bad for customers because of the compression!!
Well man, you can't be serious... Every DVD has compressed AC3 and for my ears, it sounds quite good!! And again the XBOX can be mentioned, bad quality with XBOX Dolby Digital because of compression??

So he said, we will never see such a card from Creative!!

So either you buy a motherboard with soundstorm(quite bizarre to buy a mobo for better sound...) or put all your hope in programmers like Valex and wait that someday a solution for gaming with ac3 encoding will appear!!

[Socio]

Yep,

A while back I read an interview with one of the Creative guys and he was asked about supporting DD encoding and said that their EAX was far superior to DD so supporting DD encoding would be a step backwards.

Needless to say if someone can figure out how to force all analog sound to pass through the AC3filter before going to the soundcard we would could have DD EAX gaming.:D

Not only that but if you have a PCTV card like a Dvico Fusion HDTV card all analog cable and OTA TV could be watched in DD surround.

It might be as simple as going to the registry and changing all supported audio outputs to default to the AC3Filter.

[oddball]

I want to make a request.

Can we have a 'seperate' option to send AAC 5.1 to SPDIF (AC3 transcoded)?

At present in order to get 5.1 AAC transcoded to AC3 5.1 and spat out the SPDIF you have to tick PCM option, which means any and all WAV, MP3 and Ogg gets sent to the AC3 transcoder as well! Very irritating. Of course if I untick PCM then AAC 5.1 does not get transcoded. I have to keep switching!

[E-Male]

i daubt valex reads this thread, as he has his mailinglist now

[SeeMoreDigital]

Originally posted by oddball
I want to make a request.

Can we have a 'seperate' option to send AAC 5.1 to SPDIF (AC3 transcoded)?

At present in order to get 5.1 AAC transcoded to AC3 5.1 and spat out the SPDIF you have to tick PCM option, which means any and all WAV, MP3 and Ogg gets sent to the AC3 transcoder as well! Very irritating. Of course if I untick PCM then AAC 5.1 does not get transcoded. I have to keep switching! I think it's a bit of a shame that AC3Filter does not have it's own AAC decoder, as this would make the whole AAC to AC3 transcoding situation much easier.

Just to keep you up to date, when I suggested this to him he replied: AAC decoder will be in far-far future... I even (very cheekily) suggested a revised GUI, so that AC3Filter would be prepared to cater for future audio stream innovations: -

http://img46.exs.cx/img46/1301/ac3filtersystem4yh.gif

I think it's fair to say that Valex's AC3Filter is certainly respected and there are loads of us that want to use it!

But in the meantime, for all those who need AAC to AC3 transcoding, maybe FFdshow's audio filters would suit you better. As discussed toward the bottom of this page: -

http://forum.doom9.org/showthread.php?s=&threadid=89284


Cheers

EDIT: Proposed AC3Filter GUI ammended... To protect the innocent!

[oddball]

I can't get it to work in ffdshow. The audio stutters and the video playback crawls.

[krazyklown]

http://img83.exs.cx/img83/2294/ac3filtersystem3it.gif


Wait where did you getr this version of AC3Filter!? I must have it! Please?

[SeeMoreDigital]

Originally posted by oddball
I can't get it to work in ffdshow. The audio stutters and the video playback crawls. Which version of FFdshow did you install? I used Celtic Druid's 22Jan05 (http://www.aziendeassociate.it/./cd//ffdshow/ffdshow-20050122.exe) version.


Cheers

[rjamorim]

Originally posted by krazyklown
Wait where did you getr this version of AC3Filter!? I must have it! Please?

Originally posted by SeeMoreDigital
I even (very cheekily) suggested a revised GUI, so that AC3Filter would be prepared to cater for future audio stream innovations: -

:rolleyes:

[oddball]

Can we have the option to send only 5.1 AAC/Ogg etc to the AC3 to SPDIF output? At present if you tick AC3 it sends 'ALL' audio to it. This is not the ideal for me. Why add extra CPU use to audio streams that do not need it (I.E. converting to AC3 on the fly means CPU extra CPU usage)?

Ideally the option to send to AC3 should be on a dropdown on the codecs menu of ffdshow so you can select which codecs to send to AC3 and which type (I.E. option to set 2.0 as untouched and 5.1 as converted).

EDIT: OOPS! This was meant to go to the ffdshow thread not the AC3Filter thread. But I guess it's just as relevant.

[hippoth]

No more news for the AC3Filter? I subscribed to the mailinglist in the hope to get any news or a link to a version I can test...but nothing :(
How can we talk in the mailinlist about testing without an available version?

[E-Male]

the 3rd test verison is out for some time now
maybe you should write to the ML, introduce yourself (valex has written in the sourceforge forum what info he wants) and ask for the link

[MarkCoolio]

Just to inform u that a new version is out:

AC33Filter 1.02a Test4

You can find it under the link that valex gave out for the previous test versions.

[netquik]

Originally posted by MarkCoolio
Just to inform u that a new version is out:

AC33Filter 1.02a Test4

You can find it under the link that valex gave out for the previous test versions.



Can't find it... can you post the link?

[kurt]

[removed link]

[rjamorim]

Uh-oh... hope Valex doesn't get pissed and leaves development again.

[ernstblaauw]

Originally posted by rjamorim
Uh-oh... hope Valex doesn't get pissed and leaves development again.
Why should Valex get pissed?

[SeeMoreDigital]

Originally posted by ernstblaauw
Why should Valex get pissed? Because as far as I was aware, Valex's most recent AC3Filter test versions were by "invitation"... ie: it's a closed test!


Cheers

[kurt]

Originally posted by sillKotscha
ehrm, I guess valex would have posted this version here, too if he was willing to...

but as we could read above... he wants a closed test till now, so I think it's not a good idea to post hist testversion here...

my 0,02 €
just found that post, so i removed the link - sorry

[sillKotscha]

but maybe the changes made by valex are interesting enuff to post 'em...


Features of AC3 Filter 1.02a test4:

- Decoding of AC3/DTS/MPEG1/2 Audio Layer I/II formats
- Support of DVD, AVI/AC3, AVI/DTS, WAV/AC3 and WAV/DTS
- Audio processing for any source
- 6-channel decomposition of any source
- Full information about audio track format
- Support of SPDIF passthrough mode
- Multi-channel audio output from all sources on SPDIF (on-the-fly AC3 encoding)
- Channel-by-channel amplification for all input/output channels
- Channel-by-channel delays (for compensation of distance difference to speakers)
- Automatic gain control
- Clipping
- Dynamic Range Compression, DRC
- Level indication for input and output channels
- Matrix mixer and ability of direct modification of mixing matrix
- Dolby Surround / Pro Logic / Pro Logic II mixing

Tags :

- Audio Codec Tag 2000 may be requested when AC3 Filter is missing.
- Audio Codec Tag 8192 may be requested when AC3 Filter is missing.

Changes in AC3 Filter 1.02a test4:

- Documentation was fully rewrited (much of information about how to setup and tune the filter)
- updated DRC algorithm (reduced noise)
- DRC bug fixed (sound disappeared sometimes)
- AC3 encoder bug fixed
- Added AC3 CRC check

Changes in AC3 Filter 1.01a RC5:

- First working alfa for new filter generation
- Totally rewrited
- 10%-20% less CPU usage
- Level meters are now syncronized with playback
- DTS decoding support (including AVI/DTS and WAV/DTS)
- MPEG1/2 Audio Layer I/II decoding support
- DVD/LPCM decoding support
- Audio processing for any kind of audio track
- AC3/DTS/MPEG Audio SPDIF passthrough
- Real-time AC3 encoding for multichannel SPDIF output
- More powerful dynamic range compression
- Bass redirection crossover frequency
- Per-channel gain control
- equalizer
- save configuration to file

Changes in AC3 Filter 0.70b:

! Serious bug in decoder fixed. Sound is _much_ better now especially on low bitrates.
* Some optimizations.
* Updated DPLII downmix matrix according to http://forum.doom9.org/showthread.php?s=&threadid=57988 (thanks to bleo!)


• Important Note:
- There is a bug in the AC3 Filter 0.70b (and perhaps later versions) that prevents it from working well with Media Files that contain multiple AC3 Audio Tracks. Installing AC3 Filter 0.7b FIX will solve the problem (this fix doesn't contain all files, install standard version first!)

[daphy]

- There is a bug in the AC3 Filter 0.70b (and perhaps later versions) that prevents it from working well with Media Files that contain multiple AC3 Audio Tracks. Installing AC3 Filter 0.7b FIX will solve the problem (this fix doesn't contain all files, install standard version first!)

sorry, but where do I find this fix :confused:

THX

[pieroxy]

Maybe you would find the answer in reading the thread? Hmmm? :rolleyes:

Valex did set up a mailing list for those that wish to beta-test ac3filter. You just need to get on it and wait for the next release.

The address of valex's post onto the sourceforge forum is in an older post of this thread.

[bourtzovlakas]

sorry, but where do I find this fix

<link removed until the GPL question is resolved>

[Doom9]

this raises an interesting GPL question, unless the dts code has been completely replaced.

I figure the reason for having a private test is the GPL is just that binaries can be distributed without corresponding source (for the backstory, that's available earlier in this thread).

You can privately distribute binary-only derivations of a GPL'ed work, as long as it stays in a closed group. If one member breaks outside that group and makes the binary available to the general public (as in putting up on a public website for everybody to see), we have a license problem on our hands. The distributor is supposed to offer access to the sources and if this cannot be done, distribution is in violation of the GPL.

[magicclue]

so you want to tell that this site offering the new AC3 Filter version is raising an issue on violating GPL?
Maybe only a few let's pretend a closed user group surfing by are able to take part in the downloading :-)

<link once again removed until the GPL compliance can be assured, next time it's a strike for violation of a moderator order>

What's all the hype about it?

[E-Male]

Originally posted by bourtzovlakas
<link removed until the GPL question is resolved>

finally someone put's hsi foot down against these leaked links

[MacAddict]

Apparently a few people here aren't understanding the idea behind a closed group beta test. Stop posting the test links and join the SF group as mentioned at the start of the thread people!

[bourtzovlakas]

Apparently a few people here aren't understanding the idea behind a closed group beta test. Stop posting the test links and join the SF group as mentioned at the start of the thread people!

I only posted the link for the AC3 Filter 0.7b FIX....
No closed group beta test version....
Maybe you should read more carefully, before posting judgements and accusations...

[MacAddict]

Originally posted by bourtzovlakas
I only posted the link for the AC3 Filter 0.7b FIX....
No closed group beta test version....
Maybe you should read more carefully, before posting judgements and accusations...

Uhmmm...look at the link above that was removed. You read carefully?;)

[bourtzovlakas]

Uhmmm...look at the link above that was removed. You read carefully?

How can i read carefully a removed link?????
You are not making any sense...

[KpeX]

I'm going to close this thread, since this discussion is neither useful nor on-topic. Doom9's statement stands, we won't be discussing any links to private tests here, since unless the source is released, any public test versions are still in violation of the GPL.