Aften 0.0.8 is out

[xbox360]

I AM AT A CYBER CAFE & WAITING FOR HELP, ASAP, READ ON !

Originally Posted by jruggle

Multiple input file support is now part of Aften SVN. Below is a snippet from the commandline help that shows how to use the new options.

    [-ch_X file]   Add a mono file to the input list as the channel specified
                       These parameters are used to specify multiple mono
                       source files instead of a single multi-channel source
                       file.  Only valid AC-3 combinations are allow.  The
                       acmod, lfe, chconfig, and chmap parameters are all
                       ignored if multi-mono inputs are used.
                       ch_fl  = Front Left
                       ch_fc  = Front Center
                       ch_fr  = Front Right
                       ch_sl  = Surround Left
                       ch_s   = Surround
                       ch_sr  = Surround Right
                       ch_m1  = Dual Mono Channel 1
                       ch_m2  = Dual Mono Channel 2
                       ch_lfe = LFE

Anyone & Everyone help me !

Can you provide a full working syntax sample for 6 mono wav's to 5.1 ac3 with EX mode enabled please, because I have created a working GUI called Aften Mono GUI. But I cant seem to workout the syntax for 6 mono wav's to 5.1 ac3.
PLEASE HELP AS SOON AS POSSIBLE !!!!!!!!

BELOW IS MY GUI SCREENSHOTS (I SWEAR & PROMISE IF YOU GUYS CAN HELP ME AS SOON AS POSSIBLE on THE SYNTAX SAMPLE, I WILL SHARE THE GUI Named Aften Mono GUI WHITH EVERYONE ON THIS PLANET EARTH !)

Stereo AC3


5.1ch AC3


6.1 AC3

[tebasuna51]

Originally Posted by xbox360

Can you provide a full working syntax sample for 6 mono wav's to 5.1 ac3 with EX mode enabled please, because I have created a working GUI called Aften Mono GUI. But I cant seem to workout the syntax for 6 mono wav's to 5.1 ac3.

With Wisodev aften rev683 this work for me:

aften -xbsi2 1 -dsurexmod 2 -ch_fl e:\FL.wav -ch_fr e:\FR.wav -ch_fc e:\C.wav -ch_lfe e:\LFE.wav -ch_sl e:\BL.wav -ch_sr e:\BR.wav e:\outEX.ac3

[xbox360]

Originally Posted by tebasuna51

With Wisodev aften rev683 this work for me:

aften -xbsi2 1 -dsurexmod 2 -ch_fl e:\FL.wav -ch_fr e:\FR.wav -ch_fc e:\C.wav -ch_lfe e:\LFE.wav -ch_sl e:\BL.wav -ch_sr e:\BR.wav e:\outEX.ac3

Is the above same as below ?

aften -xbsi2 1 -dsurexmod 2 -ch_fl D:\EncodingStuff\Audio Stuff\New Folder\audi_0.wav -ch_fc D:\EncodingStuff\Audio Stuff\New Folder\audi_2.wav -ch_fr D:\EncodingStuff\Audio Stuff\New Folder\audi_1.wav -ch_sl D:\EncodingStuff\Audio Stuff\New Folder\audi_4.wav -ch_sr D:\EncodingStuff\Audio Stuff\New Folder\audi_5.wav -ch_lfe
D:\EncodingStuff\Audio Stuff\New Folder\audi_3.wav D:\EncodingStuff\Audio Stuff\dds.ac3

Because when I use the below I get this error:

cannot mix single-input syntax and multi-input syntax

[Chumbo]

Originally Posted by xbox360

Is the above same as below ?

aften -xbsi2 1 -dsurexmod 2 -ch_fl D:\EncodingStuff\Audio Stuff\New Folder\audi_0.wav -ch_fc D:\EncodingStuff\Audio Stuff\New Folder\audi_2.wav -ch_fr D:\EncodingStuff\Audio Stuff\New Folder\audi_1.wav -ch_sl D:\EncodingStuff\Audio Stuff\New Folder\audi_4.wav -ch_sr D:\EncodingStuff\Audio Stuff\New Folder\audi_5.wav -ch_lfe
D:\EncodingStuff\Audio Stuff\New Folder\audi_3.wav D:\EncodingStuff\Audio Stuff\dds.ac3

Because when I use the below I get this error:

cannot mix single-input syntax and multi-input syntax

You have spaces in the path of the files. Any time the path and/or file name contains spaces, you have to put it in quotes, i.e., "D:\EncodingStuff\Audio Stuff\New Folder\audi_0.wav" rather than just D:\EncodingStuff\Audio Stuff\New Folder\audi_0.wav since the space is a command line delimiter.

I bet using this would work fine:

aften -xbsi2 1 -dsurexmod 2 -ch_fl "D:\EncodingStuff\Audio Stuff\New Folder\audi_0.wav" -ch_fc "D:\EncodingStuff\Audio Stuff\New Folder\audi_2.wav" -ch_fr "D:\EncodingStuff\Audio Stuff\New Folder\audi_1.wav" -ch_sl "D:\EncodingStuff\Audio Stuff\New Folder\audi_4.wav" -ch_sr "D:\EncodingStuff\Audio Stuff\New Folder\audi_5.wav" -ch_lfe
"D:\EncodingStuff\Audio Stuff\New Folder\audi_3.wav" "D:\EncodingStuff\Audio Stuff\dds.ac3"

[G_M_C]

Originally Posted by LigH

Extremely simplified:

The AC-3 encoder converts the incoming samples (similar to MP3) into a frequency spectrum, and stores the (according to the psychoacustic model) most important frequency factors as floating-point values.

The less bitrate you allow, the less frequency factors can be kept as "important". A too low bitrate results in an incompletely restored frequency spectrum while decoding - so the result is rather a less accurate sound/tone (spectrum related) than a less accurate sample value (volume related).

If you allow enough bitrate, AC-3 has the potential to store even a higher resolution and dynamic than dts (in some more or less academic cases); do not expect to exhaust the AC-3 technology with integer PCM audio sources, professional audio studios are able to feed floating-point sample data.
__

The AC-3 (A/52) standard allows 640 kbps AC3. But the DVD-Video standard limits it to 448 kbps for DVD audio streams. Therefore, even some AC-3 decoders in cheap DVD players or homecinema sets are not able to decode AC-3 audio beyond 448 kbps.

Thx for this abriviated explination, i understand it better now. And coming back to my original posting; I understand where these rules-of-thumb came from, it is based on the amount of info you feed the encoder related to the final bitrate.

(feed the encoder less info/less audio-detail for a lower bitrate by adapting the bitrate of the original PCM).

[G_M_C]

I get an error when using the multi-mono input;

I've used EAC3To to demux a DTS track into separate WAV's. Then i try to input those with the following commandline;

aften.exe -threads 2 -b 4 -dynrng 1 -ch_fl "d:\howl.L.wav" -ch_fc "d:\howl.C.wav" -ch_fr "d:\howl.R.wav" -ch_sl "d:\howl.SL.wav" -ch_sr "d:\howl.SR.wav" -ch_lfe "d:\howl.LFE.wav" "D:\Howl_384[PAL].AC3"

Then i get this;

Aften: A/52 audio encoder
Version SVN
(c) 2006-2007 Justin Ruggles, Prakash Punnoor, et al.

input format:
WAVE Signed 24-bit little-endian 48000 Hz mono
WAVE Signed 24-bit little-endian 48000 Hz mono
WAVE Signed 24-bit little-endian 48000 Hz mono
WAVE Signed 24-bit little-endian 48000 Hz mono
WAVE Signed 24-bit little-endian 48000 Hz mono
WAVE Signed 24-bit little-endian 48000 Hz mono
output format: 48000 Hz 3/2 + LFE

invalid bitrate
error initializing encoder

I changed my commandline, and added "-raw_fmt s24_le" to it, to compensate for the bitrate;

Then i got this error;

Aften: A/52 audio encoder
Version SVN
(c) 2006-2007 Justin Ruggles, Prakash Punnoor, et al.

all files must be mono when using multiple input files
invalid input file(s)

And the last error isn't correct; All files are in fact mono (as Aften recognised at the first commandline.

What have I done wrong

[madshi]

Originally Posted by G_M_C

I've used EAC3To to demux a DTS track into separate WAV's. Then i try to input those with the following commandline

Just wondering: If you're already using eac3to, why don't you let eac3to do the Aften encoding for you? If you want to use the latest Aften build, you can replace the "libaften.dll" that ships with eac3to with the latest version.

[DarkAvenger]

-b 4

4kps/ch is a bit too little...

[G_M_C]

Originally Posted by DarkAvenger

4kps/ch is a bit too little...

As i understand from the long help; -b 4 means: Encode @ 384 kbps.

And why i want to use aften is that i want to verify EAC3To does the transcoding correctly; DVDLab reports an average of 383 kpbs (and not 384), and i'm under the impression that the surround mix levels are off with EAC3To (too loud, no -3 db applied i think, especially noticable when the DVD is played on a system where a downmix to stereo is needed: The center-channel/voices get mixed to faint and get " lost "). And as i said; I want to verify that by using aften directly.

[madshi]

Originally Posted by G_M_C

And why i want to use aften is that i want to verify EAC3To does the transcoding correctly; DVDLab reports an average of 383 kpbs (and not 384), and i'm under the impression that the surround mix levels are off with EAC3To (too loud, no -3 db applied i think, especially noticable when the DVD is played on a system where a downmix to stereo is needed: The center-channel/voices get mixed to faint and get " lost "). And as i said; I want to verify that by using aften directly.

Oh, that's a welcome test. Please let me know if you find out that eac3to is doing something wrong. Thanks...

[G_M_C]

Originally Posted by madshi

Oh, that's a welcome test. Please let me know if you find out that eac3to is doing something wrong. Thanks...

np i'll do that (after i get Aften to work offcourse )

[wisodev]

WAV to AC3 Encoder version 1.1 is avaibale for download.

Changes:

- Updated Aften sources and libraries to svn revision 703.
- Added support for multi mono input.
- Added MUX Wizard for multi mono input.
- MUX Wizard can import *.mux and *.files file formats, Ansi and Unicode supported (*.files files fully support MUX format).
- MUX Wizard can export *.files files (Ansi or Unicode, depends on build type).
- MUX Wizard can export Ansi *.mux files using MUX file format.
- Added support read and write for *.mux files.
- Added command-line support.
- Changed presets configuration file format.
- Default and ignored preset values are not saved to file.
- Removed option to generate batch scripts.
- Ansi and Unicode configuration files are supported in all builds.

Screenshots:




Thanks,
wisodev

[xbox360]

Alas wisodev releases it, wisodev showoff . What I ment was you could have released your app alot earlier you know !

[G_M_C]

Originally Posted by wisodev

WAV to AC3 Encoder version 1.1 is avaibale for download.

[...]

Thanks,
wisodev

Thx man, been waiting for this

Have to go to bed now, give it a try tomorrow. See if you app works on those demuxed tracks i have (posted about earlier).

[jruggle]

Originally Posted by G_M_C

As i understand from the long help; -b 4 means: Encode @ 384 kbps.

I'll change the text to be a little more obvious, but if you read a little more closely you'll see that those are the defaults for different numbers of channels. If your source is 4 channels, the default bitrate will be 384 kbps.

[jruggle]

Originally Posted by G_M_C

I changed my commandline, and added "-raw_fmt s24_le" to it, to compensate for the bitrate;

Then i got this error;

Aften: A/52 audio encoder
Version SVN
(c) 2006-2007 Justin Ruggles, Prakash Punnoor, et al.

all files must be mono when using multiple input files
invalid input file(s)

And the last error isn't correct; All files are in fact mono (as Aften recognised at the first commandline.

What have I done wrong

There are a couple things wrong. First of all, you should not specify that the input is raw if it is really wav. If you did indeed convert those files to raw, then you need to specify the raw channels and raw samplerate (if different from the default).

That said, I went ahead and changed the default number of channels for raw input to 1 instead of 2. I had been meaning to do this ever since raw input was enabled, but I just forgot about it.

[wisodev]

Originally Posted by xbox360

Alas wisodev releases it, wisodev showoff . What I ment was you could have released your app alot earlier you know !

Yes I know but it took more time to create this release because of changes I've made inside the program so I was stuck with release until now. I hope you did find my program a bit useful anyway

[G_M_C]

Originally Posted by jruggle

I'll change the text to be a little more obvious, but if you read a little more closely you'll see that those are the defaults for different numbers of channels. If your source is 4 channels, the default bitrate will be 384 kbps.

I'm from Holland, so English isnt my native language. It is very much possible I havent understood the help the right way. A "more obvious" description could help out

[Elektra999]

Thanks for the WAVtoAC3 v1.1, Wisodev and for working so well.

Frank

[DarkAvenger]

I posted a highly experimental patch ("proof of concept") at aften ml which adds transcoding support to the lib. Beware that the exe has no support, yet, so it is not targeted at end-users.