eac3to - audio conversion tool

[tebasuna51]

...
+ DTS-Core
- DTS-ES +
- channelNo 6
- lfe 1
- channelDescr 6.1
...

@madshi
Standards DTS-ES (encoded with DTS PRO SERIES SURROUND ENCODER) are decoded by libav and Arcsoft like 5.1 (with Cs mixed in Ls-Rs). Maybe if you expect by 6.1 and only have a 5.1 ...

[tebasuna51]

I tested tebasuna51's samples with Sonic. The updated list is below:

Thanks Nautilus7. I don't like install Sonic again.

btw, tebasuna51, is that you on the samples? :D
Yep, I make myself the samples.

[rica]

@madshi
Standards DTS-ES (encoded with DTS PRO SERIES SURROUND ENCODER) are decoded by libav and Arcsoft like 5.1 (with Cs mixed in Ls-Rs). Maybe if you expect by 6.1 and only have a 5.1 ...

Do you mean Libav decodes DTS-HD(HR or MA) as well and both Arcsoft and Libav creates just 5.1? (even the source 6.1 or 7.1)

[odin24]

Using the command eac3to input.thd output.thd+ac3 make a BD compatible TrueHD stream, would a similar command work for a E-AC3 stream?

eac3to input.eac3 output eac3+ac3?

Thanks, O

[nautilus7]

No, it won't.

To use E-AC3 on BD you must have a 7.1 stream. And to make it BD compatible, you need an E-AC3 encoder. It 's not like TrueHD + AC3 (individual tracks), but 5.1 AC3 core with E-AC3 extensions for the additional channels. 5.1 E-AC3 tracks in HD DVD are replaced by 5.1 AC3 in BD.

[tebasuna51]

Do you mean Libav decodes DTS-HD(HR or MA) as well and both Arcsoft and Libav creates just 5.1? (even the source 6.1 or 7.1)

I say DTS-ES, not HD (HR or MA), 6 physical channels (5.1) but 7 logical channels (6.1) with Cs mixed in Ls-Rs

[madshi]

I asked earlier, but it probably got forgotten in all the posts
You got a reply to your question *directly* under your question. Put your glasses back on!

i know for only two problematic samples:

- Edward Scissorhands Blu-ray DTS-HD MA 3/1 track
- Q-tec Hi-Definition Reference Demo Disc DTS-HD MA track
Edward will work with the next eac3to version and all channels will have the correct volume, but the surround channel will not be bit perfect (the other 3 channels will be bit perfect) when decoding with ArcSoft. Decoding with Sonic will result in all channels being bit perfect with the next eac3to version.

Unfortunately there's nothing I can do about the Hi-Def demo DTS track.

This doesn't work for me. If I specify a bitrate, eac3to errors with 'This audio conversion is not supported'.
Strange, it works for me. Please post your command line and the full eac3to log.

Standards DTS-ES (encoded with DTS PRO SERIES SURROUND ENCODER) are decoded by libav and Arcsoft like 5.1 (with Cs mixed in Ls-Rs).
I don't think that's right. DTS-ES Matrix is decoded as 5.1 by all decoders. DTS-ES Discrete 6.1 is correctly decoded to 6.1 by the ArcSoft decoder, I think (if you're sure that I'm wrong here I'd be happy about a sample). The Sonic decoder decodes DTS-ES Discrete 6.1 to either 5.1 or 6.1, depending on which channel extension is used. Sonic supports 6.1 XCh, but not 6.1 XXCh. libav DTS decoding is generally limited to 5.1.

Okay, I reran the thing again (adding -sonic, too). And this was the result:

+ DTS-Core
- frameSize 2012
- DTS-ES +
- channelNo 6
- lfe 1
- channelDescr 6.1
- samplingRate 48000
- bitDepth 24
- bitrate 1536000
- dialNorm 4
- extAudio XXCh
- samplesPerFrame 512
- copyHistory 1
Yeah, that explains the problem. The Sonic DTS-Decoder doesn't support XXCh. That's why this DTS track is decoded as 5.1, only, while eac3to thought it would be decoded as 6.1. I guess I need to make eac3to aware of that Sonic sometimes decodes 6.1 as 5.1 and sometimes as 6.1... <sigh>

If possible, a small sample of the DTS track would be a nice addition for my sample collection.

[madshi]

I say DTS-ES, not HD (HR or MA), 6 physical channels (5.1) but 7 logical channels (6.1) with Cs mixed in Ls-Rs
There is DTS-ES 5.1 (also called "DTS-ES Matrix") and DTS-ES 6.1 (also called "DTS-ES Discrete"). These are two very different things. For a decoder DTS-ES Matrix looks like normal 5.1 with just the "ES" flag set. But DTS-ES Discrete has an XCh or XXCh extension in the DTS stream which contains a full separate channel. You can use "eac3to some.dts -logdts" to get exact information about what extensions are contained in your DTS files.

[rebkell]

You got a reply to your question *directly* under your question. Put your glasses back on!


Nautilus cheated, he edited his answer after I had already read it ;)

[nautilus7]

Yes, that's true, but I hoped you would have a look in my post again.

[rebkell]

Yes, that's true, but I hoped you would have a look in my post again.

No problem, I sub to the thread and it goes to the newest post and it works great, but if someone edits a post it doesn't show up as a new post, even though it has a later time/datestamp than the newest post.

I have a different scenario than the majority in this thread(I suppose). I record with the HD-PVR, then reencode with x264(to get some better IDR frames for scenecut purposes) and then mux it back into a ts with tsmuxer, then I cut out commercials with h264ts_cutter and I used to occasionally get some a/v sync problems. So there is no telling what kind of audio overlaps and gaps end up in the cut file.

[rica]

Why do you use another cutter while TSMuxer exists?
Cut while remuxing and merge the files with eac3to. (another tip, btw there is no VC1 cutter except TSMuxer afaik.)

[tebasuna51]

@madshi, you are right, I was talking about DTS-ES "Matrix" (with Cs mixed in Ls-Rs) encoded with DTS PRO SERIES SURROUND ENCODER, well detected by eac3to -logdts like:
+ DTS-Core
- frameSize 2013
- DTS-ES +
- channelNo 5
- lfe 1
- channelDescr 5.1
...

I don't have samples "DTS-ES Discrete"

[madshi]

I don't have samples "DTS-ES Discrete"
You can create them with that Pro encoder you mentioned, I think.

[madshi]

eac3to v2.61 released

http://madshi.net/eac3to.zip

* added read/write support for Sony wave64 (*.w64) format
* added read/write support for RF64 wave64 (*.rf64) format
* added write support for AGM format
* true bitdepth (e.g. 18 bits) is written to extensible wav header now
* when reading 16/24 (true/storage) WAV files, zero bytes are stripped now
* added HDCD detection for WAV and FLAC files
* added HDCD detection for PCM tracks in VOB/EVO/m2ts containers
* added HDCD decoder written by Christopher Key
* added new option "-decodeHdcd" to decode HDCD information
* HDCD track -> lossy format: HDCD decoding is automatically activated
* when DTS-MA and TrueHD tracks are decoded, a check for HDCD is done
* fixed some incorrect DTS channel masks
* added automatic libav DTS channel remapping
* added automatic ArcSoft DTS channel remapping
* added channel map manipulation to make funny DTS tracks decode with Sonic
* added channel map manipulation to make funny DTS tracks decode with ArcSoft
* added channel volume modification to undo ArcSoft mono surround splitting
* for TrueHD+AC3 creation AC3 delay and gap correction are disabled now
* fixed: DTSWAV and DTSAC3 readers reported too long runtime
* fixed: sometimes processing aborted with a "bitdepth reducer" complaint
Many thanks to Christopher Key for providing the HDCD decoder!

[Thunderbolt8]

guess I might have missed, but what exactly is HDCD (good for)? according to wikipedia it seems to be some kind of technology for accounstic improvement for CDs and DVDs? does someone who just wants to convert the lossless tracks of movies to flac need this somehow?
thanks again for new!

[nautilus7]

eac3to v2.61 released
Many thanks to Christopher Key for providing the HDCD decoder!And many thanks to you for all the new features and excellent support of this program. :thanks:

* added write support for AGM formatOne question though... Is this the 1st step for adding support for the official DTS encoder?

[madshi]

guess I might have missed, but what exactly is HDCD (good for)? according to wikipedia it seems to be some kind of technology for accounstic improvement for CDs and DVDs? does someone who just wants to convert the lossless tracks of movies to flac need this somehow?
thanks again for new!
Some audio CDs are encoded with HDCD. On a normal CD player they play just like a normal CD in 16 bit. However, there are CD players which can detect and make use of the HDCD coding. Which results in the audio tracks being enhanced to something more than 16 bit (something between 16 bit and 20 bit). This technology is usually only used for audio CDs and not for movies. Now eac3to can detect HDCD tracks and decode them which basically means increasing the bitdepth from 16 bit to something a little bit higher than 16 bit. If you have hardware which supports HDCD you will not want eac3to to decode HDCD, but let the hardware decode it instead (that saves space). But if your hardware can't do HDCD and you do have some HDCD audio tracks, eac3to can now decode them to full bitdepth.

[madshi]

* added write support for AGM formatOne question though... Is this the 1st step for adding support for the official DTS encoder?
Maybe. Or maybe not.

[nautilus7]

Maybe. Or maybe not.I see. ;)

btw, that encoder can do DTS-ES Discrete 6.1 (and Matrix 6.1).

[tman24]

I'm sure this has been asked a lot, but I would appreciate a quick answer.

Is is possible to extract just 'forced' subtitles from HD rips using eac3to? Primarily this will be for blu-ray. I can extract the whole subtitle stream and process it using SubtitleCreator, but forced subtitles seem to be harder (or maybe not, if anyone knows the best way!).

[markrb]

I just updated to 2.61 and now get this error.

eac3to v2.61
command line: "D:\HD\ea\eac3to.exe" "H:\BDMV\STREAM\" 1) 2: "E:\video.mkv" -seekToIFrames 3: "E:\audio.ac3"
------------------------------------------------------------------------------
M2TS, 1 video track, 3 audio tracks, 3 subtitle tracks, 1:52:02
1: Chapters, 17 chapters
2: h264/AVC, 1080p24 /1.001 (16:9)
3: DTS Master Audio, English, 7.1 channels, 16 bits, 48khz
4: AC3, French, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB
5: AC3, English, 2.0 channels, 224kbps, 48khz, dialnorm: -27dB
6: Subtitle (PGS), English
7: Subtitle (PGS), English
8: Subtitle (PGS), Spanish
[a03] AC3 encoding only supports 6 channels. Will mix the surround channels.
[v02] Extracting video track number 2...
[a03] Extracting audio track number 3...
[v02] Muxing video to Matroska...
[a03] Mixing surround channels...
[a03] The channel mixer received channels with different attributes.
[a03] Decoding with ArcSoft DTS Decoder...
[a03] The channel modder didn't receive the format information.
Aborted at file position 32768.

It all worked fine with Live Free and Die Hard DTS-HD
Now I am trying Bank Job DTS-HD and get this error.

Any thoughts?

BTW 2.60 worked fine on this movie.

[rebkell]

Why do you use another cutter while TSMuxer exists?
Cut while remuxing and merge the files with eac3to. (another tip, btw there is no VC1 cutter except TSMuxer afaik.)

This conversation is totally off topic for this thread, but I have no idea what you are talking about, unless you're talking about tsremuxer and if so, it is too hard to determine what I'm doing and also I've never been able to get it to even mux the aac audio of the recordings I make.

[rica]

This conversation is totally off topic for this thread, but I have no idea what you are talking about, unless you're talking about tsremuxer and if so, it is too hard to determine what I'm doing and also I've never been able to get it to even mux the aac audio of the recordings I make.

I was talking about TSMuxer as i said. You didn't tell you are re-encoding to aac btw.
Anyway forget about it.

I have a different scenario than the majority in this thread(I suppose). I record with the HD-PVR, then reencode with x264(to get some better IDR frames for scenecut purposes) and then mux it back into a ts with tsmuxer, then I cut out commercials with h264ts_cutter and I used to occasionally get some a/v sync problems. So there is no telling what kind of audio overlaps and gaps end up in the cut file.

[Beastie Boy]

This doesn't work for me. If I specify a bitrate, eac3to errors with 'This audio conversion is not supported'.

Please ignore this post by me regarding thd+ac3 output.
I was editing the command line produced by eac3to_and_more_gui, and put the bitrate inside the quotes. I feel so embarrassed. :rolleyes:

[madshi]

Is is possible to extract just 'forced' subtitles from HD rips using eac3to?
I think forced subtitles are usually contained in an extra subtitle track, or am I wrong? If I'm not wrong, you just need to find the right subtitle track and demux it. Or just demux all subtitle tracks and check which one is the smallest. That should be the "forced" one. But I guess not all movies have forced subtitles...

I just updated to 2.61 and now get this error.

eac3to v2.61
command line: "D:\HD\ea\eac3to.exe" "H:\BDMV\STREAM\" 1) 2: "E:\video.mkv" -seekToIFrames 3: "E:\audio.ac3"
------------------------------------------------------------------------------
M2TS, 1 video track, 3 audio tracks, 3 subtitle tracks, 1:52:02
1: Chapters, 17 chapters
2: h264/AVC, 1080p24 /1.001 (16:9)
3: DTS Master Audio, English, 7.1 channels, 16 bits, 48khz
4: AC3, French, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB
5: AC3, English, 2.0 channels, 224kbps, 48khz, dialnorm: -27dB
6: Subtitle (PGS), English
7: Subtitle (PGS), English
8: Subtitle (PGS), Spanish
[a03] AC3 encoding only supports 6 channels. Will mix the surround channels.
[v02] Extracting video track number 2...
[a03] Extracting audio track number 3...
[v02] Muxing video to Matroska...
[a03] Mixing surround channels...
[a03] The channel mixer received channels with different attributes.
[a03] Decoding with ArcSoft DTS Decoder...
[a03] The channel modder didn't receive the format information.
Aborted at file position 32768.

It all worked fine with Live Free and Die Hard DTS-HD
Now I am trying Bank Job DTS-HD and get this error.

Any thoughts?

BTW 2.60 worked fine on this movie.
Will be fixed in the next build.

[madshi]

eac3to v2.62 released

http://madshi.net/eac3to.zip

* fixed: downmixing 16 bit 7.1 DTS tracks to 5.1 stopped working in v2.61

[xkodi]

madshi, how i can use the AGM write support, doing:

eac3to input_file output.agm

gives me

This audio conversion is not supported.

[3ngel]

Madshi, is there a possibility you can develop the DPLIIx matrix for 7.1 channels downmixing? It's quite different from a standard DPLII

That's the config

http://img169.imageshack.us/img169/2431/129025gc2.jpg

The DPLIIx is the evolution of DPLII and can be used obviously on 5.1 too.

[Inventive Software]

Thank you madshi for adding HDCD decoding support to your program. I have been looking for a solution to play my HDCD back as intended, and you've provided it! :D

[sehgal.v7]

@Madshi
Why doesn't TSMuxer accept RAW, LPCM, PCM converted from TrueHD??
eac3to Audio.thd Audio.raw
eac3to Audio.thd Audio.lpcm
eac3to Audio.thd Audio.pcm

It only accepts WAV File// is that which is specified in Blu Ray specifications??
eac3to Audio.thd Audio.wav

I used to thought blu ray uses LPCM/PCM// but in that it swaps channels.

[sehgal.v7]

@Madshi
eac3to v2.62
command line: eac3to audio.thd audio.wav
------------------------------------------------------------------------------
TrueHD, 5.1 channels, 48khz
Decoding with libav/ffmpeg...
Writing WAV...
Creating file "audio.wav"...
This audio track has a constant bit depth of 16 bits.
eac3to processing took 16 seconds.
Done.

It again gives 24bit file :-(

[madshi]

madshi, how i can use the AGM write support
I've tested it with "eac3to source.wav dest.agm". Which was your exact command line?

Madshi, is there a possibility you can develop the DPLIIx matrix for 7.1 channels downmixing?
Downmixing to 5.1 or to 2.0? I'd need the exact matrix to implement that.

Why doesn't TSMuxer accept [...]
Why do you ask me? I have not written tsMuxer.

It again gives 24bit file :-(
Will check that... You can probably fix it by doing "eac3to audio.wav audio2.wav".

[sehgal.v7]

I just wanted to confirm whether acc to Blu Ray specifications, LPCM is correct or PCM or WAV??

[madshi]

Ever heard of wikipedia?

[xkodi]

I've tested it with "eac3to source.wav dest.agm". Which was your exact command line?

eac3to.exe 51.wav 51.agm
WAV, 5.1 channels, 0:00:14, 24 bits, 6912kbps, 48khz
This audio conversion is not supported.

[edit]the problem is solved, it turns out that i've messed my eac3to version and was using 2.60. thanks to nautilus7 for giving me the idea to double check that.

[nautilus7]

I just wanted to confirm whether acc to Blu Ray specifications, LPCM is correct or PCM or WAV??
Look sehgal.v7,

tsmuxer is a buggy and incomplete program. It's developer hasn't shown up since months...

This "problem" with pcm input in tsmuxer has been covered (in this thread) a while ago. In short, it doesn't accept "normal" pcm files, but pcm files in a very weird form. Tebasuna51 was kind enough to make a program (pcm2tsmu) that makes tsmuxer compatible pcm files.

Anyway, I 've seen a lot tsmuxer users asking here why this or that doesn't work with tsmuxer. I understand that they don't know what else to do, except than asking eacto's developer to help, since tsmuxer's developer has forgot them... but that's not proper for madshi.


@ xkodi

Are you sure your version is 2.61/2.62?

[sehgal.v7]

Why you guys heating up so much??
I jus asked// if you knew, you shared.. thn wht's being arrogant of this??

[xkodi]

Are you sure your version is 2.61/2.62?

you are right i messed my versions and was using 2.60. the problem is solved. thanks!

[nautilus7]

Why you guys heating up so much??Oh, really? Too bad i tried to explain the "situation".
I jus asked// if you knew, you shared.. thn wht's being arrogant of this??You should have used search before asking then... (I guess you like this answer better, huh?)

[sehgal.v7]

Again, you are sounding tough// c'mon bro, if were in ma city, would have take you to for the drink.. Chill!!
Everything thing has a way of explaining..

[McFlipp]

madshi, how i can use the AGM write support, doing:

eac3to input_file output.agm

gives meWorks fine here:
eac3to v2.62
command line: eac3to E:\truehd.flac D:\audio.agm
------------------------------------------------------------------------------
FLAC, 5.1 channels, 2:32:39, 24 bits, 7620kbps, 96khz
Decoding FLAC...
Writing Agm...
Creating file "audio.agm"...
This audio track has a constant bit depth of 24 bits.
eac3to processing took 9 minutes, 36 seconds.
Done.

edit: Disregard this post... I was being a blind fool....

[xkodi]

thank you, McFlipp!

works fine here too:

http://forum.doom9.org/showthread.php?p=1180993#post1180993

[madshi]

Why you guys heating up so much??
I jus asked// if you knew, you shared.. thn wht's being arrogant of this??
We're not heating up. We're just pointing out that some of the questions you're asking don't belong here while others were not really necessary at all (a simple google/wikipedia check would have answered them). You seem to take it for granted that you get good replies to all funny questions for free. Ever thought of that maybe I have a job? And that every minute I spend on answering questions here means that I give up money which I could have earned otherwise in my job? Please limit your questions to those which belong here and which haven't been asked before and where wikipedia and google don't help you. That would show respect to the worth of my time. Thanks.

[sehgal.v7]

@Madshi
I'm sowwie for my neglection bro// I apologise!!

Regards,
Sehgal.

[Encoder888]

@madshi

I have trouble demuxing the MPEG-2 stream from VOB files. Here's what I get:

eac3to v2.62
command line: D:\eac3to\eac3to.exe vts_02_1.vob+vts_02_2.vob 2: Video.mkv
------------------------------------------------------------------------------
VOB, 1 video track, 4 audio tracks, 5 subtitle tracks, 0:43:15
1: Joined VOB file
2: MPEG2, 480p24 /1.001 (16:9) with pulldown flags
3: AC3, 5.1 channels, 384kbps, 48khz, dialnorm: -25dB
4: AC3, 2.0 channels, 192kbps, 48khz, dialnorm: -25dB
5: AC3, 5.1 channels, 384kbps, 48khz, dialnorm: -27dB
6: AC3, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB
7: Subtitle
8: Subtitle
9: Subtitle
10: Subtitle
11: Subtitle
[v02] This doesn't seem to be a valid MPEG2 stream.
Aborted at file position 1713938432.

I tried it with an earlier version of eac3to (I think it was 2.51) and it worked fine. Please, fix it if possible :)

[piratburner]

It's should be a DREAM if this fantastic SW could make a m2ts output :-) :-) :-)
Then it would be the ultimate SW, Just think ..... take the movie stream, and a sound, subtitle you like from the BD source and output a new m2ts file ..... but I'm perhaps only dreaming ;-) but it's nice to dream :-)

[Inventive Software]

Keep dreaming. That's the job of the authoring tools, like TSRemux and TSmuxer. ;)

@madshi: HDCD decoding is PERFECT! The 2 HDCDs I have ripped to FLAC and re-encoded to FLAC via eac3to sound different, so I'm assuming the decoder's more or less perfect. Thank you. :)

[madshi]

I have trouble demuxing the MPEG-2 stream from VOB files. Here's what I get:

eac3to v2.62
command line: D:\eac3to\eac3to.exe vts_02_1.vob+vts_02_2.vob 2: Video.mkv
------------------------------------------------------------------------------
VOB, 1 video track, 4 audio tracks, 5 subtitle tracks, 0:43:15
1: Joined VOB file
2: MPEG2, 480p24 /1.001 (16:9) with pulldown flags
3: AC3, 5.1 channels, 384kbps, 48khz, dialnorm: -25dB
4: AC3, 2.0 channels, 192kbps, 48khz, dialnorm: -25dB
5: AC3, 5.1 channels, 384kbps, 48khz, dialnorm: -27dB
6: AC3, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB
7: Subtitle
8: Subtitle
9: Subtitle
10: Subtitle
11: Subtitle
[v02] This doesn't seem to be a valid MPEG2 stream.
Aborted at file position 1713938432.

I tried it with an earlier version of eac3to (I think it was 2.51) and it worked fine. Please, fix it if possible :)
Hmmmm... That is extremely strange. The code which outputs this MPEG2 error message is meant to run at the beginning of a file, but I see that the processing aborted at 1.7GB, which is WAY after the beginning of the file. How big are the two vob files?

@madshi: HDCD decoding is PERFECT! The 2 HDCDs I have ripped to FLAC and re-encoded to FLAC via eac3to sound different, so I'm assuming the decoder's more or less perfect. Thank you. :)
I hope the decoded files sound better, not just different? :) Unfortunately I don't have any way to check whether the decoder is working correctly or not. But I assume it does.

[xkodi]

I hope the decoded files sound better, not just different? :) Unfortunately I don't have any way to check whether the decoder is working correctly or not. But I assume it does.

i was thinking about the same - Windows Media Player has build-in HDCD decoder, because Microsoft acquired HDCD company in 2000. so, WMP decoder can be used for reference. the problem is how to make bit-perfect capture of the WMP decoder output (AFAIK, it is not DirectShow filter)?

http://thumbnails4.imagebam.com/1288/41d52e12870874.gif (http://www.imagebam.com/image/41d52e12870874)