eac3to - audio conversion tool

[geminigod]

I don't think so.

Play with DRC enabled lose the original quality of audio.

Was a help for old amplifiers/receivers without the actual process capacity than can replace DRC with Night Mode for all audio formats, not only AC3.

BTW, if you play with PC you can use Ac3Filter with a dynamic DRC function, or you can recode the audio with BeLight with a Boost function.

I wish my receiver had a "night mode". Even some of the new receivers out there are retarded about the signal processing options. My father just bought a new Denon receiver that sucks. There are a bazillion useless ways to screw with the EQ, all of which make the sound worse, and no way to process dynamic range.

At any rate, no worries. I just have an ac3 audio track that I have since deleted the source material for. I encoded it with a Film Light DRC setting and decided that Film Standard would be preferrable. It isn't worth transcoding to change it though.

[An IP BreAKDoWN]

Are mono audio files still not supported? I'm trying to rip a mono audio file that is in thd to a dts. Does anyone know how to do this if eac3to can't?

[kalston]

I converted a mono DTS file to FLAC without any problem.

[An IP BreAKDoWN]

How about a mono THD to DTS (FLAC, or WAV for that matter)?

[geminigod]

Are mono audio files still not supported? I'm trying to rip a mono audio file that is in thd to a dts. Does anyone know how to do this if eac3to can't?

I can't remember the specifics of whether surecode supports mono dts encoding or not, assuming you even have this $250 codec setup in your eac3to. Try converting to wav first and then to dts. See if it works then.

More likely your eac3to is not setup to properly decode or encode dts. Type eac3to -test at the command prompt and see what it says.

I could ask why you are trying to make a mono dts file... :scared: Stereo acoustics will sound much better, even if you are just duplicating the mono track.

If you are determined to work with this challenging format (due to commercial copyright issues), you can play around with this brand new experimental open source dts codec that folks here have been working on.

http://forum.doom9.org/showthread.php?p=1552620#post1552620

[kws53]

I can't get eac3to to downconvert a 3 channel [L/R/C] DTS audio stream. Using -down2 switch does not solve it. The output is still 3 channels.

Kurt

[An IP BreAKDoWN]

I can't remember the specifics of whether surecode supports mono dts encoding or not, assuming you even have this $250 codec setup in your eac3to. Try converting to wav first and then to dts. See if it works then.

More likely your eac3to is not setup to properly decode or encode dts. Type eac3to -test at the command prompt and see what it says.

I could ask why you are trying to make a mono dts file... :scared: Stereo acoustics will sound much better, even if you are just duplicating the mono track.

If you are determined to work with this challenging format (due to commercial copyright issues), you can play around with this brand new experimental open source dts codec that folks here have been working on.

http://forum.doom9.org/showthread.php?p=1552620#post1552620

Yes I have Surecode, it set me back but I have it installed. The reason I'm trying to convert to mono is because the source is mono in THD format.

Here is that command you told me to use:

eac3to v3.24
command line: eac3to -test
------------------------------------------------------------------------------
eac3to (v3.24) is up to date
Nero Audio Decoder (Nero 6 or older) doesn't seem to be installed
http://www.nero.com/eng/store-blu-ray.html
CAUTION: You need Nero 7. Nero 8 won't work with eac3to.
ArcSoft DTS Decoder (1.1.0.1) works fine
Sonic Audio Decoder (3.24.0.0) doesn't seem to be installed
Haali Matroska Muxer (2011-09-08) is up to date
Nero AAC Encoder could not be located
http://www.nero.com/eng/nero-aac-codec.html
Copy NeroAacEnc.exe to the eac3to or to the Windows folder.
Surcode DTS Encoder (1.0.29.0) is installed
MkvToolnix (2.5.3.0, release version) is installed
There's a new release version (5.2.1.0) available
http://www.bunkus.org/videotools/mkvtoolnix
There's a new beta version (5.2.1.0, 2012-01-13) available
http://www.bunkus.org/videotools/mkvtoolnix/win32/pre


And here is the error I am having when I try to rip it to .dts

eac3to v3.24
command line: eac3to 00001.m2ts 4: japanese-1.0.dts
------------------------------------------------------------------------------
M2TS, 1 video track, 3 audio tracks, 2 subtitle tracks, 0:24:13, 24p /1.001
1: h264/AVC, 1080p24 /1.001 (16:9)
2: TrueHD/AC3, 5.1 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 5.1 channels, 448kbps, 48kHz, dialnorm: -25dB)
3: TrueHD/AC3, 2.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 2.0 channels, 192kbps, 48kHz, dialnorm: -25dB)
4: TrueHD/AC3, 1.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 1.0 channels, 96kbps, 48kHz, dialnorm: -25dB)
5: Subtitle (PGS)
6: Subtitle (PGS)
[a04] Extracting audio track number 4...
[a04] Extracting TrueHD stream...
[a04] Removing TrueHD dialog normalization...
[a04] Decoding with libav/ffmpeg...
[a04] [libav] Substream min channel cannot be greater than max channel. <WARNING>
[a04] The libav decoder reported error -1 while decoding. <ERROR>
Aborted at file position 1048576. <ERROR>


Here is the error message when I rip it to .wav

eac3to v3.24
command line: eac3to 00001.m2ts 4: japanese-1.0.wav
------------------------------------------------------------------------------
M2TS, 1 video track, 3 audio tracks, 2 subtitle tracks, 0:24:13, 24p /1.001
1: h264/AVC, 1080p24 /1.001 (16:9)
2: TrueHD/AC3, 5.1 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 5.1 channels, 448kbps, 48kHz, dialnorm: -25dB)
3: TrueHD/AC3, 2.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 2.0 channels, 192kbps, 48kHz, dialnorm: -25dB)
4: TrueHD/AC3, 1.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 1.0 channels, 96kbps, 48kHz, dialnorm: -25dB)
5: Subtitle (PGS)
6: Subtitle (PGS)
[a04] Extracting audio track number 4...
[a04] Extracting TrueHD stream...
[a04] Removing TrueHD dialog normalization...
[a04] Decoding with libav/ffmpeg...
[a04] [libav] Substream min channel cannot be greater than max channel. <WARNING>
[a04] The libav decoder reported error -1 while decoding. <ERROR>
Aborted at file position 1048576. <ERROR>


And here is the error message when I rip to .wavs

eac3to v3.24
command line: eac3to 00001.m2ts 4: japanese-1.0.wavs
------------------------------------------------------------------------------
M2TS, 1 video track, 3 audio tracks, 2 subtitle tracks, 0:24:13, 24p /1.001
1: h264/AVC, 1080p24 /1.001 (16:9)
2: TrueHD/AC3, 5.1 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 5.1 channels, 448kbps, 48kHz, dialnorm: -25dB)
3: TrueHD/AC3, 2.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 2.0 channels, 192kbps, 48kHz, dialnorm: -25dB)
4: TrueHD/AC3, 1.0 channels, 48kHz, dialnorm: -25dB
(embedded: AC3, 1.0 channels, 96kbps, 48kHz, dialnorm: -25dB)
5: Subtitle (PGS)
6: Subtitle (PGS)
[a04] Extracting audio track number 4...
[a04] Extracting TrueHD stream...
[a04] Removing TrueHD dialog normalization...
[a04] Decoding with libav/ffmpeg...
[a04] [libav] Substream min channel cannot be greater than max channel. <WARNING>
[a04] The libav decoder reported error -1 while decoding. <ERROR>
Aborted at file position 1048576. <ERROR>


I would like to try the experimental version, however I can't get the wav so I'm stuck till I can get the wav. :(

[b66pak]

first you need to demux the thd from the m2ts:

eac3to 00001.m2ts 4:japanese.thd

get the latest ffmpeg (http://ffmpeg.zeranoe.com/builds/)...and use this:

ffmpeg -i japanese.thd japanese.wav
_

[An IP BreAKDoWN]

@b66pak Thanks that worked. Except the eac3to complained about it being mono on the conversion from wav to dts, however I used the SureCode GUI and that worked! Thanks again!

[TDiTP_]

ffmpeg -i japanese.thd japanese.wav
As far as i remember, with this command line you'll be obtain 16-bit PCM always, even if TrueHD is 24-bit.
You need:
ffmpeg -i input.thd -acodec pcm_s24le output.wav
and then, if you need it, you can check the true bitdepth in audioeditor or by -analyzebitdepth in eac3to:
eac3to input.wav -analyzebitdepth

[An IP BreAKDoWN]

As far as i remember, with this command line you'll be obtain 16-bit PCM always, even if TrueHD is 24-bit.
You need:
ffmpeg -i input.thd -acodec pcm_s24le output.wav
and then, if you need it, you can check the true bitdepth in audioeditor or by -analyzebitdepth in eac3to:
eac3to input.wav -analyzebitdepth
Thats very useful thanks!

One question though, how can I find the bit depth of the THD since the libav in eac3to can't open it since its a mono?

[TDiTP_]

how can I find the bit depth of the THD since the libav in eac3to can't open it since its a mono?
If eac3to isn't able to decode lossless-stream, then it can't check his bitdepth, so in this case -analyzebitdepth doesn't work.

[An IP BreAKDoWN]

If eac3to isn't able to decode lossless-stream, then it can't check his bitdepth, so in this case -analyzebitdepth doesn't work.
Right, do you know a program that can analyze the bit depth in THD format?

[Rodeo]

Thats very useful thanks!

One question though, how can I find the bit depth of the THD since the libav in eac3to can't open it since its a mono?

Please try to follow the provided instructions. First, b66pak's:

eac3to 00001.m2ts 4:japanese.thd

japanese.thd becomes input.thd in TDiTP_'s instructions:

ffmpeg -i input.thd -acodec pcm_s24le output.wav

So here, the TrueHD file is now 24-bit PCM in WAV…

eac3to input.wav -analyzebitdepth

…thus the old, buggy libavcodec TrueHD decoder is no longer involved.

[TDiTP_]

Right, do you know a program that can analyze the bit depth in THD format?
i know only eac3to with his -analyzebitdepth. This command can be applied to any lossless-stream or PCM (in WAV/W64).
BTW, BDInfo can check bitdepth of THD incorrectly: look known issues (http://www.cinemasquid.com/blu-ray/tools/bdinfo).
Of course, if libav of eac3to can't decode THD, then -analyzebitdepth does not make sense (because for determine bitdepth you need to decode). In this case you should try fresh ffmpeg.

[Floatingshed]

I've been using eac3to to join various audio files together. I have been doing it by hand as a commandline and it works well.
However I have a directory containing 37 mp3 files (all same params) that I want to join. A batch file would be nice, perhaps using IN DO, but my brain won't work, please somebody take pity...
Thanks.

[Sparktank]

I've been using eac3to to join various audio files together. I have been doing it by hand as a commandline and it works well.
However I have a directory containing 37 mp3 files (all same params) that I want to join. A batch file would be nice, perhaps using IN DO, but my brain won't work, please somebody take pity...
Thanks.

>.< multiple file batching can be the morning-coffee-buzzkill.

I really haven't done anything like joining files in eac3to, but I do do some batch files.

For doing multiple files, I just open a text file with the "eac3to" commands, copy and paste them several times.
Going back and modifying only the input/output file names.
And then exit at the very bottom.

Note: I also have windows configured to open CMD in a folder, using the context menu: "Open Comand Promt here"

"path\eac3to.exe" "sourcefile[+sourcefile2]" [trackno:] "[destfile|stdout]" [-options]
"path\eac3to.exe" "sourcefile[+sourcefile2]" [trackno:] "[destfile|stdout]" [-options]
"path\eac3to.exe" "sourcefile[+sourcefile2]" [trackno:] "[destfile|stdout]" [-options]
exit



Then I just copy/paste that into the CMD of the destination folder.
I use "" if the path of my eac3to is in a folder with 2 words including a space "App Bin", and also some of the source files are in folders that contain spaces as well.

I also add in custom logs.
-log=custom_name_codec__etc_with_no_spaces_to_reduce_amount_of_quotes.txt

As for creating a batch script, I'm not that far in batching.
Yet :D

[Floatingshed]

OK. I've done it. I'm not a whizz at programming so it may not be very elegant but it works. If you want to use it just copy and paste into a batch file (set path to eac3to). Drop into a folder of mp3 files, double click and a single file of them all nicely joined will appear!


FOR %%a IN (*.mp3) DO echo/|set /p =" "%%~NXa"+" + >> temp.txt
set /p inlist= <temp.txt
set newlist=%inlist:~0,-1%
path.to\eac3to.exe" %newlist% "Joined mp3 files.mp3"
del temp.txt

[nibus]

OK. I've done it. I'm not a whizz at programming so it may not be very elegant but it works. If you want to use it just copy and paste into a batch file (set path to eac3to). Drop into a folder of mp3 files, double click and a single file of them all nicely joined will appear!


FOR %%a IN (*.mp3) DO echo/|set /p =" "%%~NXa"+" + >> temp.txt
set /p inlist= <temp.txt
set newlist=%inlist:~0,-1%
path.to\eac3to.exe" %newlist% "Joined mp3 files.mp3"
del temp.txt

:goodpost: excellent!

[LeKouz]

Hi.

Does anybody know how to set SoX to handle the 64 floating point output from eac3to?
Or in an other question, what kind of 64bit-Stream is eac3to giving out?
I've tried a lot of commands but all I've got is noise and it sounds like playing a CD-ROM in an audio-player.

This is the last command-line i've tried to pipe from eac3to to SoX:
eac3to "test.ac3" stdout.wav -full -simple | sox -V3 --type .f64 --rate 48000 --encoding floating-point --bits 64 --channels 6 --ignore-length - -t wav --encoding floating-point --bits 32 result.wav



"--type raw --rate 48000 --encoding floating-point --bits 64 --channels 6" -> Doesn't works too. Lot of noise.

If i set "--type" to wav, SoX says:
sox WARN wav: wave header missing FmtExt chunk
sox FAIL formats: can't open input `-': Sorry, don't understand .wav size

And if I command eac3to to write the 64bit output directly to a WAV-File, Mediainfo means:
General
Complete name : E:\Tools\eac3to\test.wav
Format : Wave
File size : 668 MiB
Duration : 5mn 4s
Overall bit rate mode : Constant
Overall bit rate : 18.4 Mbps

Audio
ID : 0
Format : PCM
Format profile : Float
Format settings, Endianness : Float
Codec ID : 00001000-0000-0300-8000-00AA00389B71
Codec ID/Hint : IEEE
Duration : 5mn 4s
Bit rate mode : Constant
Bit rate : 18.4 Mbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 64 bits
Stream size : 668 MiB (100%)

[nu774]

sox WARN wav: wave header missing FmtExt chunk

This is due to SoX wave parser bug. It currently always shows this strange warning to IEEE float wave file with WAVE_FORMAT_EXTENSIBLE header.


sox FAIL formats: can't open input `-': Sorry, don't understand .wav size

This is another thing. Currently SoX cannot read 64bit float wave files. Though one line of modification to the wave parser source code can enable it.
However, since SoX internally treats audio samples in the form of 32bit float, feeding 64bit float PCM to SoX is pointless anyway.


"--type raw --rate 48000 --encoding floating-point --bits 64 --channels 6" -> Doesn't works too. Lot of noise.

You cannot treat wave file as raw PCM. In this case, length of wave header is not divisible by the length of double PCM frame (= 8 * number of channels).
Therefore, access to each PCM samples are not aligned, and produces completely wrong result.
Even if it is aligned, since wave header is treated as audio, you will get some garbage at the beginning.

[LeKouz]

THX nu774 for the infos :)

[geminigod]

Nu774, you can go here. https://sourceforge.net/projects/sox/files/

The latest release candidate that just came out addresses some of your concerns. Not sure about handling 64 bit float, but that is a giant waste anyway. You can check the tracker bug status at that website as well.

[nu774]

AFAIK, this issue (http://sourceforge.net/tracker/?func=detail&aid=3481510&group_id=10706&atid=110706) is not yet addressed. Am I missing something?

[Floatingshed]

I have a problem getting BluRay info from eac3to. When I run:

eac3to.exe E:\ >text.txt

to generate a text file of disc contents I get a lot of wierd characters (as well as the required data). e.g.

 - DTS Master Audio, English, multi-channel, 48kHz

Different text editors display this very differently, so clearly none of them understand it!

Does anyone here? Thanks.

[kypec]

Different text editors display this very differently, so clearly none of them understand it!

Does anyone here? Thanks.
That's because eac3to outputs special (non-printable) characters into console (to change fore/background colors for example).
Why not use other tool for getting information on Blu-ray disc, BDInfo (http://www.cinemasquid.com/blu-ray/tools/bdinfo#about) comes to mind...

[NanoBot]

Hi,

I just did a quick test trying to reproduce your problem, but without one special case I can't reproduce it. The textfile produced by

eac3to m: > D:\tmp\test.txt

is nearly perfect readable when I load it into either the standard XP text editor or into Ultraedit.

Nearly means, that the german umlauts and e.g. the french circumflex accent or grave accent are not displayed correctly. But the reason for this behavior is simple: Since I am in germany, my command line uses codepage 850 by default ( should be cp 437 in english language countrys ? ), while Windows uses codepage 1252 by default. So the only thing I have to do to solve the problem is to execute "chcp 1252" on my cli, and all characters are displayed correctly within the Windows editor.

Perhabs your problem has a similar cause ?

[skeeve1000]

Hi,
since i updated to the latest version of popcorn 1.85.1, of mkvtoolnix 5.3 as well as eac3to i always get an eac3to crash when eac3to starts to work within popcorn.
You can see the errormessage here:
http://www.networkedmediatank.com/showthread.php?tid=20887&page=99
(i asked the popcorn developement first).

May this could be a problem with MS.NET? I´m not sure but it can be possible, that i killed a version of .NET on my computer.

Help would be great.
Thanks in advance.

Skeeve

[tebasuna51]

Hi, since i updated to the latest version of popcorn 1.85.1,...

Like eac3to version don't change seems a bug in AudioConverter.exe 1.85.1 (maybe capturing the eac3to progress) then we can't help you here.

Try execute the command line out of AudioConverter (in a cmd window) and see if work.

I don't know eac3to dependencies with .NET

[skeeve1000]

Hi again,

eac3to crashes directly while starting in comand line (e.g. eac3to d:\tmß\xyz.mkv).
It asks me to send a bug report, but i am not sure, if i should do this?
Any further advice?

Skeeve

[Floatingshed]

That's because eac3to outputs special (non-printable) characters into console (to change fore/background colors for example).
Why not use other tool for getting information on Blu-ray disc, BDInfo (http://www.cinemasquid.com/blu-ray/tools/bdinfo#about) comes to mind...


I am using eac3to to extract files, therefore I wanted to use the info in the text file as a means of identifying and selecting the required tracks. Does anyone know how to get a clean feed of the track info?

Found a workaround, the info is nice and clean in the eac3to log file...

[tebasuna51]

eac3to crashes directly while starting in comand line (e.g. eac3to d:\tmß\xyz.mkv)

Sorry but I can't reproduce your problem, work fine here. :)

[Midzuki]

Hi again,

eac3to crashes directly while starting in comand line (e.g. eac3to d:\tmß\xyz.mkv).
It asks me to send a bug report, but i am not sure, if i should do this?
Any further advice?

Skeeve

1) :logfile:

2) Wild guess:
d:\tmß\xyz.mkv

Try renaming that folder to an "ASCII-friendly" :) string.

[tebasuna51]

...
Try renaming that folder to an "ASCII-friendly" :) string.

Yeah, I think skeeve1000 (from germany) know the problem.

In the command line I say to execute (see http://www.networkedmediatank.com/showthread.php?tid=20887&page=99 ) don't exist non-ASCII chars, for that my :)

[Midzuki]

Hummm you're right, certainly I need more buckets of coffee per day.

[ Midzuki :uglylol:s himself ]

[VincAlastor]

hi,
is it possible to use flaccl.dll instead libflac.dll directly in eac3to? i've read flaccl -8 provides better compression than flac -8 - besides it is faster, too.
http://www.cuetools.net/wiki/FLACCL
i know, i could use it with the command line, but channel mapping for each different codec is confusing for me. eac3to gives the right channel map to libflac even the source has a strange 7.1 surround setup, isn't it?
i could not found any limitations for flaccl, so i think it supports 24bit and 8 channels.

[mindbomb]

is it ever a good idea to update the avcodec.dll that comes with eac3to?

my friend ran into a decoding problem, i thought about suggesting this to him, not really sure if it uses a special one or something.

[kypec]

is it ever a good idea to update the avcodec.dll that comes with eac3to?

my friend ran into a decoding problem, i thought about suggesting this to him, not really sure if it uses a special one or something.
I'm afraid not. I'd tried that last year and replaced both avcodec.dll and avutil-50.dll with some April-ish 2011 versions -> this prevented eac3to to decode/process even some of the previously working formats :( Unless madshi himself recompiles against more recent ffmpeg/libav libraries (or releases the source code in the wild) then we're out of luck. :mad:

[Richard1485]

If I run a wav or PCM file through eac3to and output as .lpcm, will the result be both Blu-ray and DVD compliant?

[06_taro]

VincAlastor
stable released FlacCL#0.3 does not support 24bit, only FlacCL#0.4 in CUETools 2.1.2a does. But it's a bit experimental, and there's at least one known (if rare) bug in it (http://www.hydrogenaudio.org/forums/index.php?showtopic=64628&view=findpost&p=763244).


madshi
eac3to internally encodes flac using max compression level as you mentioned here (http://forum.doom9.org/showthread.php?p=1222771#post1222771). Is the encoded flac file within the flac subset (http://flac.sourceforge.net/format.html#subset) like libflac's -8(without --lax), or non-subset like flacCL's -9~11/flake's -11~12?

edit: re-encoding eac3to generated flac file with flac.exe -8 gives only difference in header, so it seems that eac3to is using exactly the same setting as libflac's -8....

[shh]

Where's madshi? Is eac3to dead?

[tebasuna51]

madshi is still active here http://forum.doom9.org/showthread.php?t=146228

I can't answer to second question.

[szabi]

Hi

I tried this:
Extract the DTS core of a DTS-HD track:
eac3to input.dtshd output.dts -core

Why is it not working?
IAW wikibooks it should: click (http://en.wikibooks.org/wiki/Eac3to/How_to_Use)

bye
szabi

[madshi]

eac3to is not dead, it's just kinda "on hold" for the moment, because I'm busy working on madVR. Once madVR has reached v1.0, I'll get back to eac3to development.

[szabi]

I tried using gui's, but no luck as well.
Eac3to and More GUI (http://forum.doom9.org/showthread.php?t=135095)
This one got crash all the time.
Another mod of this is Eac3to and More GUI v.1.10.01.
Even the input file is given, it is asking to give again and again, it can not be started.

eac3to µGUI (http://forum.doom9.org/showthread.php?t=156762)
Third one i tried is this.
But the needed button is inactive in the gui.

Is that possible it is just a planned feature which does not work momentarily?

bye
szabi

[the_weirdo]

@szabi: You may try this GUI: UsEac3to (http://forum.doom9.org/showthread.php?t=145574).

[szabi]

It worked, many thanks. :thanks:
I would reccommend to take this tool to initial post.
Out of 4 gui this was the only one which could work.

bye
szabi

[jpsdr]

eac3to is not dead, it's just kinda "on hold" for the moment, because I'm busy working on madVR. Once madVR has reached v1.0, I'll get back to eac3to development.

Thanks for the information !

[setarip_old]

@szabi

If you can find it, you might also try the MUCH older "EAC3toGUI.exe"...

[Richard1485]

If I run a wav or PCM file through eac3to and output as .lpcm, will the result be both Blu-ray and DVD compliant?

Any ideas about this?