eac3to - audio conversion tool

[Chouonsoku]

The message is clear: this track is a mix of 1.0 and 2.0
Try with:
ffmpeg -i japanese.thd -ac 2 -acodec pcm_s24le -f wav japanese.wavThe message isn't that clear. :P I'll give that a shot though, I had not considered this might be a mixed channel format track.

Edit: That gives me a much longer list of errors, mostly this:

[truehd @ 01B49040] Lossless check failed - expected 65, calculated fa.
[truehd @ 01B49040] Invalid nonrestart_substr.
Error while decoding stream #0:0

[tebasuna51]

Then seems you have a unsupported or corrupt THD stream.
Try extract the ac3 file.

[Chouonsoku]

Then seems you have a unsupported or corrupt THD stream.
Try extract the ac3 file.I can get the core audio just fine, it's just the decoding to WAV that seems to be the problem. I can upload the track in question (it's under 90 MB) if it'll help diagnose the problem.

[tebasuna51]

I don't know the TrueHD specs and I can't help.
Maybe you can open a new thread to explain the ffmpeg problem, eac3to can't work without a libav decoder than work.

[mindbomb]

what is the proper procedure for encoding 6.1 audio to flac?

-0,1,2,3,5,6,4 -double7 , right?

and this applies to any audio, or just dts input?

[tebasuna51]

Only if you want 7.1 output.
If you want 6.1 output the remap is not needed.

The remap is needed, with any 6.1 audio, if you use -double7 or -down6 parameters.

[mindbomb]

thanks tebasuna

so, just to be clear, with the flac encoder, you can't encode 6.1 audio?

You have to either use down6 or double7, right?

[tebasuna51]

You can encode 6.1 audio to flac. Just I make the test to se if channel order is preserved.

eac3to 6.1.dtshd 6.1.flac
eac3to 6.1.flac 6.1.wav

and the 6.1.wav is bit-identical to

eac3to 6.1.dtshd 6.1.wav

with correct channel order.

[sneaker_ger]

What about this (http://mod16.org/hurfdurf/?p=184)?

Was this just a decoder problem or is the channel order really not defined?

[tebasuna51]

Yes, the channel order for 7 channels (6.1) in flac is undefined, but also for 8 channels (7.1), only until 6 channels (5.1) is well defined:
http://flac.sourceforge.net/format.html#format_overview (Channel assignment)
But the channel order is preserved using eac3to, or flac.exe, like encoder/decoder.

For me the 6.1 and 7.1 flac play fine in my directshow system (madflac installed) and Foobar2000.
Maybe other decoders don't work properly, or the source input have a wrong channel order.

[mindbomb]

What about this (http://mod16.org/hurfdurf/?p=184)?

Was this just a decoder problem or is the channel order really not defined?

I was literally just about to post that

[phate89]

Something strange happens to me... i used eac3to to edit more than one time a 5.1 track to resync it avoiding recompressions... i tested the ac3 using media player classic that allows to load external audio and the editing i do seems perfect... then i mux the audio into the file (mkv with h264 video) and in some points i edit it slightly loose sync...
the same ac3 outside works well but not inside the mkv... any clue about how is that possible?

[sneaker_ger]

Yes, the channel order for 7 channels (6.1) in flac is undefined, but also for 8 channels (7.1), only until 6 channels (5.1) is well defined:
http://flac.sourceforge.net/format.html#format_overview (Channel assignment)
But the channel order is preserved using eac3to, or flac.exe, like encoder/decoder.

For me the 6.1 and 7.1 flac play fine in my directshow system (madflac installed) and Foobar2000.
Maybe other decoders don't work properly, or the source input have a wrong channel order.

Interesting that they explicitly state that those are not defined, instead of defining them.

[tebasuna51]

Interesting that they explicitly state that those are not defined, instead of defining them.

Yes, this is a feature request, still open, since 2008-04-22:
http://sourceforge.net/tracker/?func=detail&aid=1949155&group_id=13478&atid=363478

[sneaker_ger]

Too bad, you'd figure this would be a very simple change.

[Thunderbolt8]

why is it only possible to remove pulldown from mpeg2 tracks via -strippulldown, but not from AVC or VC-1 tracks? according to -keeppulldown description, those codecs can have pulldown as well, so doesnt it seem to be possible to remove it with -strippulldown?

[Chouonsoku]

I don't know the TrueHD specs and I can't help.
Maybe you can open a new thread to explain the ffmpeg problem, eac3to can't work without a libav decoder than work.

I submitted a bug to ffmpeg. https://ffmpeg.org/trac/ffmpeg/ticket/667

[Thunderbolt8]

eac3to still cant detect (all?) aac LOAS/LATM streams. any idea when this is supposed to come?

[Vasch the stampede]

how should I encode an AAC Q = 1?

I tried whith:

-q 1, -q 1.0, -q1, -q1.0, -q 1.00, -q1.00...

None was correct

[tebasuna51]

Try with -quality=1

[Vasch the stampede]

Try with -quality=1
Thanks!!!

[73ChargerFan]

I'm trying to delete the last 8 seconds from an ac3 track.

Input is 1:50:56.700 in duration
I've tried: -edit=1:50:56,-8000ms
Output is 1:50:56.000 in duration

What am I doing wrong?

[tebasuna51]

Maybe -edit=1:50:48.700,-8000ms

[Lincoln Burrows]

Folks,
http://en.wikibooks.org/wiki/Eac3to/How_to_Use

About DTS-HD Master Audio tracks,

DTS-HD decoding can be achieved through:

"Sonic Cinemaster Audio Decoder 4.3" DirectShow filter (commercial software)
ArcSoft TotalMedia Theatre (commercial software)

Both decode bit-perfect. Sonic is limited to 5.1 or 6.1 channels depending on the source track, while ArcSoft can output up to 7.1 channels.

As a result ArcSoft is the default decoder for DTS-HD.Well, I have TotalMedia Theatre from ARCSOFT, last version. However, eac3to is saying...

http://i.imgur.com/qXcIs.png

How do I fix this? The software is already installed, but eac3to for some reason, can't detect the decoder.

And here we have broken links:
http://forum.doom9.org/showthread.php?p=1168721#post1168721

P.S. I am not using a trial version from TMT.

[heerschop]

For Eac3to to use the arcsoft decoder you need the checkactivate.dll in the arcsoft folder. Rename the attachment checkactivate.txt to checkactivate.dll en copy this file to your arcsoft folder.

It should work now.

Greets

[MrVideo]

The WAV file that eac3to produces is garbage. The sample file contains a pure sinewave test tone. Not so the output.

I've tried it with and without the -down16 option, but it didn't make a difference.

Sample file: http://vidiot.com/MPEG-LPCM-sample.ts (67,108,864 bytes)

Stream 1 is the MPEG-2 480i video stream, stream 2 is the MPEG stereo audio stream and stream 3 is the stereo LPCM audio stream.

Any help as to what the right options are to get a usable WAV file will be appreciated.

[therealjoeblow]

Does anyone have Nero 7 decoders working on Win7x64, and if so, could you please provide working instructions?

Despite asking some time ago, and having someone post advice, it doesn't work. Trying to run Regsvr32 on AdvrCntr2.dll works fine; running it on NeAudio2.ax fails (regsvr32 hangs and then crashes); and running it on NeEacDec.dll fails, it reports it can't find an entry-point DllRegisterServer.

I have installed a retail version of Nero7Ultra with retail BluRay/HDDVD plugin and no go.

Many thanks
The REAL Joe

[nibus]

You might not have the right version of NeAudio2.ax - I remember having a similar issue until I found a slightly different version of Nero 7. The SFV checksum for mine is: AD81926E

And I don't think you need to register NeEacDec.dll, just the other two.

[tebasuna51]

The WAV file that eac3to produces is garbage. The sample file contains a pure sinewave test tone. Not so the output.

Seems your sample is corrupted.
The PCM track is not recognized by tsMuxeR.
How do you make your sample?

I make a test.
1) Decode the mp2 track to wav:
eac3to MPEG-LPCM-sample.ts 2: test.wav -down16

2) Mux the test.wav to MPEG-LPCM-sample.ts like 2nd audio track (the original PCM 2nd audio track was ignored)

3) Extract the 2nd audio PCM track without problems:
eac3to MPEG-LPCM-sample-new.ts 3: test-new.wav

[iSeries]

Hi,

When dowmixing 5.1 sources to 2.0, is it a good idea to include -mixlfe? Or better to not include?

[tebasuna51]

- Dolby recommend not include LFE in downmix.

- To play on TV or low cost audio equipment not include LFE.

- To play on a good hi-fi stereo, mix LFE at your risk. The arithmetic mix of LFE can produce artifacts, or not.

[TDiTP_]

When dowmixing 5.1 sources to 2.0, is it a good idea to include -mixlfe? Or better to not include?
Dolby inc. does not recommen do it:
There are other concerns when adding an LFE signal to the mix. If the LFE is simply redistributed within the other channels of the mix, they will usually be subject to some low-frequency bandpass filtering. This filtering causes phase shifts of the LFE signal. When they are acoustically added within a room, these phase shifts are fairly subtle and often go unnoticed. However, when they are electronically added together with the five main channels in the encoder, they may produce less than desirable results at certain frequencies. For this reason, it is recommended that the LFE signal not be used in a Dolby Pro Logic II downmix unless it contains unique information that is not repeated in any of the five main channels.

[iSeries]

Thanks guys, will leave it out then. Thought there must be a reason it was left out by default.

[Lincoln Burrows]

Thanks to this info from rijnton I finally got this up and running. It seems that the detection most definitely has something to do with the newer installs from Arcsoft surrounding the Total Media Extreme product family. (which includes TMT) If using an older version that is TMT only it works fine even when the newer codec versions are installed on top of it.

Here's how to get it working:

1. Uninstall all previous versions and do the cleanup steps listed in this thread. (Registry clean, delete orphaned directories, delete instances of "arcsoft" in the registry)

1.Download and install the old version of the TMT trial that was pulled from Arcsoft's site awhile ago:

http://rapidshare.com/files/155298896/arcsoft_totalmediatheatre_engintro.exe.html

2. Do not run the program at this point - reboot
3. download this patch: http://www.arcsoft.com/downloads/digitaltheatre/arcsoft/totalmediatheatre_2.1.6.105_2.1.6.125_Update_ALL.exe
and install it. Again, do not run program. Note that this step may not be necessary. Rijton reported that he did not install this patch and went right to installing the retail w/o problems.
4. Reboot
5. eac3to should work at this point. If you own TMT or TME retail, go ahead and install now.I followed all those steps (had TMT 5 installed, but it was removed for this). I downloaded this Rapidshare file, installed, then rebooted the machine, Win7 warned me the driver was not compatible and that it would be disabled, TMT asked if I wanted to check for updates, I refused.

I did not installed this "patch" since the link is offline.

Before all that, eac3to told me I didn't had anything from Arcsoft. I tried converting a 7.1 DTS-HD MA track, from the movie "The Sound of Music", just to check if everything was fine. It failed to convert, since Arcsoft is the only one that recognizes that number of channels, as explained here:

http://en.wikibooks.org/wiki/Eac3to/How_to_Use

DTS-HD decoding can be achieved through:

1) "Sonic Cinemaster Audio Decoder 4.3" DirectShow filter (commercial software)

2) ArcSoft TotalMedia Theatre (commercial software)

Both decode bit-perfect. Sonic is limited to 5.1 or 6.1 channels depending on the source track, while ArcSoft can output up to 7.1 channels.

As a result ArcSoft is the default decoder for DTS-HD.Look (and it won't convert to AC3, it will stay in that screen forever):

http://i.imgur.com/Pz6KZ.png

Please, I beg all of you! For God's sake, DO NOT POST HERE LINKS THAT REDIRECT US TO THE DEVELOPER'S WEBSITE, ALWAYS UPLOAD COPIES FROM SUCH FILES ELSEWHERE, AND NEVER A SINGLE COPY LIKE YOU DID IN THIS CASE!

This is another copy from the "arcsoft_totalmediatheatre_engintro.exe", this time stored in multiple servers:

http://migre.me/72ZKQ

http://migre.me/72ZMi

If you upload these things in a single server, sooner or later the file will be deleted for inactivity. If people do not download this thing, it will be deleted for sure. Megaupload is one of servers that does not delete files for that reason (despite what their FAQ says).

As a result, my only alternative is to use a software like SUPER from eRIGHTSOFT to convert this...

[Lincoln Burrows]

I did it! I solved the whole thing!

Thanks to this thread:
http://forum.doom9.org/showthread.php?t=139946

All I had to do was browse this folder (using DOS prompt - it won't work using the Start Menu):

C:\Program Files\ArcSoft\TotalMedia Theatre\Codec\

Where the file ASAudioHD.ax is located.

After that, all we have to do is execute that command:

regsvr32 ASAudioHD.ax

And then:

http://i.imgur.com/BWqOy.png

For the record, I only did this after reinstalling the last TMT version, and after that, updating the old one from the RS/Migre links.

It looks like this old version is incompatible with Windows 7, I couldn't make it work even using the compatibility mode.

[iSeries]

- Dolby recommend not include LFE in downmix.

- To play on TV or low cost audio equipment not include LFE.

- To play on a good hi-fi stereo, mix LFE at your risk. The arithmetic mix of LFE can produce artifacts, or not.

Sorry to bring this up again - is the Dolby recommendation to not include the LFE when downmixing to 2.0 specific to Dolby Digital / AC3 or is it relevent to all formats? I.e if downmixing to wav / PCM is it still not recommended?

Also - and off topic for eac3to (sorry!), when watching a movie with 5.1 do audio processors (eg ffdshow or even Windows mixer) ignore the LFE when downmixing to 2.0?

[tebasuna51]

Sorry to bring this up again - is the Dolby recommendation to not include the LFE when downmixing to 2.0 specific to Dolby Digital / AC3 or is it relevent to all formats? I.e if downmixing to wav / PCM is it still not recommended?
Read the TDiTP_ post.
The problem is how the original LFE was created, not matter the downmix output format.
Also - and off topic for eac3to (sorry!), when watching a movie with 5.1 do audio processors (eg ffdshow or even Windows mixer) ignore the LFE when downmixing to 2.0?
You can configure the downmix at your choice.

[pandv2]

Another little bug in eac3to, in the hope someday the programmer, or a friend of it, restart the project.

This is the log:


eac3to v3.24
command line: "C:\MasProgramas\eac3to\eac3to.exe" "G:\Sc\H1.mkv" 2:"C:\Temp\VideoSynch\Vsy_Tmp_Audio_1.ac3" -320 -25.000 -changeTo23.976
------------------------------------------------------------------------------
MKV, 1 video track, 1 audio track, 1 subtitle track, 0:22:43, 25p
1: h264/AVC, 1080p24 /1.001 (16:9)
2: MP3, Spanish, 2.0 channels, 320kbps, 48kHz, 1500ms
"Audio en Castellano"
3: Subtitle (ASS), Spanish, "Subtítulos para el audio Castellano"
[v01] The video bitstream framerate field doesn't match the container framerate. <WARNING>
[a02] Extracting audio track number 2...
[a02] Decoding with libav/ffmpeg...
[a02] Applying RAW/PCM delay...
[a02] Encoding AC3 <320kbps> with libAften...
[a02] Clipping detected, a 2nd pass will be necessary. <WARNING>
[a02] Creating file "C:\Temp\VideoSynch\Vsy_Tmp_Audio_1.ac3"...
[a02] Starting 2nd pass...
[a02] Extracting audio track number 2...
[a02] Decoding with libav/ffmpeg...
[a02] Applying RAW/PCM delay...
[a02] Encoding AC3 <320kbps> with libAften...
[a02] Applying -0,21dB gain...
[a02] Creating file "C:\Temp\VideoSynch\Vsy_Tmp_Audio_1.ac3"...
Video track 1 contains 34071 frames.
eac3to processing took 23 seconds.
Done.


You can see I am trying to convert a mp3 track from a mkv video from 25.000 to 23.976. But the video is a 23.976 avc1 encode, converted by the mkv container to a 25.000 play speed.
Eac3to doesn't does the framerate conversion.

The workaround is simple: extract and convert after.

[dream88]

Does anyone have Nero 7 decoders working on Win7x64, and if so, could you please provide working instructions?

Despite asking some time ago, and having someone post advice, it doesn't work. Trying to run Regsvr32 on AdvrCntr2.dll works fine; running it on NeAudio2.ax fails (regsvr32 hangs and then crashes); and running it on NeEacDec.dll fails, it reports it can't find an entry-point DllRegisterServer.

I have installed a retail version of Nero7Ultra with retail BluRay/HDDVD plugin and no go.

Many thanks
The REAL Joe
Hi i have made an sfx for eac3to with nero 7 , surcode, arcsoft all in one setup only 8mb, without installing nero/surcode etc, not sure if i could post it here though, i made it for 64 bit too.


For nero 7 the only files you need are ( advrcntr2.dll msvcp71.dll msvcr71.dll NeAudio2.ax NeEacDec.dll ) and the correct registry keys from your nero 7.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead]

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation]

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation\Families]

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation\Families\Nero 7]

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation\Families\Nero 7\Info]
"Company"=""
"EulaAccepted"="x"
"MissingFilesState"="0"
"Serial7_xxxxxxxxxxxx"="xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx"
"User"=""

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation\Families\Plugins]

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Ahead\Installation\Families\Plugins\Info]
"Serial7_xxxxxxxxxxx"="*xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx"


For surcode you need the ( surcodedvd.exe Tables folder and lservrc ) and correct registry keys for surcode.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Minnetonka Audio Software]
@=""

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Minnetonka Audio Software\SurCode DVD-DTS]
"Home"="C:\\(path to folder)\\Surcode DTS Encoder"

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Minnetonka Audio Software\SurCode DVD-DTS\1.0.10]
@=""

For arcsoft you need ( ASAudioHD.ax checkactivate.dll DtsDec.dll dtsdecoderdll.dll MagCore.dll MagPCMac.dll MagUIEngine.dll MagUIInter.dll msvcp71.dll msvcr71.dll ).

A copy of msvcp71.dll & msvcr71.dll are required in the same folder as nero 7, arcsoft & eac3to folder.

I worked out how everything works and put a package together myself with all these files.

[phate89]

hi..there's a way to make it work eac3to with audio that have different channels? for example an ac3 or dts that have the start on 2.0 and the rest of 5.1? because eac3to recognise it as 2.0... and destroy the audio (3 times longer)... to pass ac3s to wav i use besweet that solve the problem but i don't know how to do with dts

[fano]

It's possible to transcode a multichannel FLAC (or whatever AAC, MP3 and so on...) to Dolby True HD o DTS HD MA?
If not it's feasible to add?
It's not important in this phase if a commercial software it's needed ;)

Thanks for the response...

[TDiTP_]

hi..there's a way to make it work eac3to with audio that have different channels? for example an ac3 or dts that have the start on 2.0 and the rest of 5.1? because eac3to recognise it as 2.0... and destroy the audio (3 times longer)... to pass ac3s to wav i use besweet that solve the problem but i don't know how to do with dts
For AC3 you can use SplitAC3. Look it here: http://forum.doom9.org/showthread.php?p=1447695#post1447695. I don't know how besweet works, but AFAIR Azid (used in besweet) can't normal decode AC3 with 2 kind of frames.

For DTS you can use LeeAudBi (http://forum.doom9.org/showthread.php?p=1522330#post1522330) to know numbers of "different" frames and then cut them by using delaycut (http://forum.doom9.org/showthread.php?t=162984). Of course you should not forget about the delay.

It's possible to transcode a multichannel FLAC (or whatever AAC, MP3 and so on...) to Dolby True HD o DTS HD MA?
Yes, but you need:
"Dolby Media Producer Suite" (it's only for MAC) for TrueHD
"DTS-HD Master Audio Suite" for DTS HD MA
It's propietary software, not cheap. :)

If not it's feasible to add?
i don't think so.

[Sparktank]

It's possible to transcode a multichannel FLAC (or whatever AAC, MP3 and so on...) to Dolby True HD o DTS HD MA?
If not it's feasible to add?
It's not important in this phase if a commercial software it's needed ;)

Thanks for the response...

Multichannel FLAC to DTS-HD MA is possible.
With commercial software.

Multichannel AAC... yeah, but it's a lossy source so not really worth the effort.

I don't think Dolby TrueHD is possible yet.

Check the first page for more functions.
Or run this command in eac3to and you'll see what you can do and what is recommended...

path\eac3to.exe -log=Help.txt
(The -log will save the results in a new txt file named Help.
I like to keep it handy for future references.)

[Sparktank]

Yes, but you need:
"Dolby Media Producer Suite" (it's only for MAC) for TrueHD

:( I remember now... MAC... :(

[fano]

Multichannel FLAC to DTS-HD MA is possible.
With commercial software.


What's its name? EAC3TO supports it?


Multichannel AAC... yeah, but it's a lossy source so not really worth the effort.


Can be useful indeed, if, for example, your system does not support
Kernel Streaming or, as in my case, it's broken to have bit-perfect-audio... that is as it becomes DTS MA; windows cannot mess whit it and only your HD AV receiver can decode it ;)


I don't think Dolby TrueHD is possible yet.


Well for that you want to do, it's unimportant :D

Thanks for your FAST response :goodpost:

P.S @TDiTP_ not saw your post, thanks to you, too !

[phate89]

For AC3 you can use SplitAC3. Look it here: http://forum.doom9.org/showthread.php?p=1447695#post1447695. I don't know how besweet works, but AFAIR Azid (used in besweet) can't normal decode AC3 with 2 kind of frames.

For DTS you can use LeeAudBi (http://forum.doom9.org/showthread.php?p=1522330#post1522330) to know numbers of "different" frames and then cut them by using delaycut (http://forum.doom9.org/showthread.php?t=162984). Of course you should not forget about the delay.

i don't think so.

thanks i didn't know them.. i'll try with that... actually besweet create a full 5.1 wav putting the 2 stereo channels in first 2 channel of 5.1 and leave all the other 4 empty... it's a good compromise to allow converting the file without problems

EDIT:very good tools| dotheir work perfectly! who create this tools?

[TDiTP_]

EDIT:very good tools| dotheir work perfectly! who create this tools?
tebasuna51, as far as i know. if you're talking about LeeAudBi and SplitAC3.

[Lincoln Burrows]

How do I convert from WAV to MP3? It says this conversion is not supported by eac3to.

http://i.imgur.com/fxL8W.png

[kypec]

How do I convert from WAV to MP3? It says this conversion is not supported by eac3to.
See this post (http://forum.doom9.org/showthread.php?p=1464996#post1464996) how to pipe output from eac3to into about any CLI encoder. ;)

[Lincoln Burrows]

See this post (http://forum.doom9.org/showthread.php?p=1464996#post1464996) how to pipe output from eac3to into about any CLI encoder. ;)That command is not working.

eac3to input stdout.wav [-down2 -normalize] | Lame -V 4 - output.mp3

The command line parameter V is unknown.