eac3to - audio conversion tool

[n0mag!c]

Originally Posted by madshi

-quality=high slowdown/speedup/resampling quality (low/high/ultra)

eac3to.exe pal.ac3 z:ntsc.ac3 -slowdown -quality=ultra -448
Command line parameter "quality=ultra" is unknown.

I guess 1st message description is outdated?
(And option "-r8brain" is correct now?)

[nautilus7]

Yes: http://forum.doom9.org/showthread.ph...16#post1211516

[rickardk]

Can the final filesize of a FLAC track created by eac3to tell something about the quality?

I just compared two tracks from two diffrent releases of a movie. The FLAC created from the LPCM track is about 0.9 GB in size. And the FLAC created from the DTS-HD High Resolution track is about 2.2 GB.

Number of channels, bit depth and sample rate is the same. (The length of the LPCM track is about one minute shorter. Shorter credits)

[nautilus7]

Most probably you're mistaken about bitdepth. Which movie is this? And which releases? Can you post the logfiles?

Generally, bigger size, better quality.

[rickardk]

Originally Posted by nautilus7

Most probably you're mistaken about bitdepth. Which movie is this? And which releases? Can you post the logfiles?

Generally, bigger size, better quality.

The Sixth Sense. US vs. German.

I'm pretty sure eac3to said that the DTS-HD High Resolution track was 16 bit before decoding. But after looking at the spec of the created FLAC I see that it's actually 24 bit.

[Thunderbolt8]

ive also converted these 2 and can say that the sizes are correct. afaik DTS-HD gets patched to 24-bit for some reason, thus the size increase. the LPCM track is only 16-bit, thats why it is so small.

[nautilus7]

DTS(-HD) dynamic range is equivalent of 24bits, thus patching bitdepth. If you don't want that you can use the undocumented switch -dontPatchDts.

[gregt]

Anyone having problems with this title? I get the following:
N:\>eac3to BATTLE_PLANET_APES
1) 00013.mpls, 1:36:26
[65+54+68+56+70+57+72+58+74+59+76+60+78+61+80+62+82+63+84+64+86+87].m2ts
- h264/AVC, 1080p24 /1.001 (16:9)
- DTS Master Audio, English, multi-channel, 48khz
- AC3, English, stereo, 48khz
- AC3, Spanish, stereo, 48khz
- AC3, French, multi-channel, 48khz
- DTS Master Audio, English, multi-channel, 48khz

2) 00016.mpls, 1:26:32
[65+66+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87].m2ts
- h264/AVC, 1080p24 /1.001 (16:9)
- DTS Master Audio, English, multi-channel, 48khz
- AC3, English, stereo, 48khz
- AC3, Spanish, stereo, 48khz
- AC3, French, multi-channel, 48khz
- DTS Master Audio, English, multi-channel, 48khz

3) 00018.mpls, 00046.m2ts, 0:16:34
- h264/AVC, 1080p24 /1.001 (16:9)
- AC3, English, stereo, 48khz

N:\>eac3to BATTLE_PLANET_APES 1)
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

N:\>eac3to BATTLE_PLANET_APES 1) 2: BATTLE_PLANET_APES.mkv 3: BATTLE_PLANET_APES
.flac
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

N:\>eac3to BATTLE_PLANET_APES 2)
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

I did not have any problems with the other Planet of the Apes discs. I am using v2.74.

[woah!]

as all the ape films have new BD+ protection which hasnt be solved yet, i suppose it is an issue with how you extracted the m2ts files. have you seen the results of the other ape films you say worked ok?

[itsancho]

hi all, and madshi, 10x again for your great work!
well, this i think is strange, at least for me. German Blu-ray, the movie is Tais-toi!

eac3to v2.75
command line: z\eac3to "K:\Tais-toi! (2003) (Ruby & Quentin) (DE)Blu-ray VC-1 dts-HD Hi-Res" 1) 1: l:\Chapters.txt 2: l:\Tais.mkv 4: f:\Tais.dts -dontPatchDts 5: f:\DE.sup
------------------------------------------------------------------------------
M2TS, 1 video track, 2 audio tracks, 1 subtitle track, 1:27:07
1: Chapters, 12 chapters
2: VC-1, 1080p24 /1.001 (16:9)
3: DTS Hi-Res, German, 5.1 channels, 16 bits, 3072kbps, 48khz
(core: DTS, 5.1 channels, 16 bits, 1536kbps, 48khz)
4: DTS Hi-Res, French, 5.1 channels, 16 bits, 1774kbps, 48khz
(core: DTS, 5.1 channels, 16 bits, 1536kbps, 48khz)
5: Subtitle (PGS), German
Creating file "l:\Chapters.txt"...
[a04] Extracting audio track number 4...
[s05] Extracting subtitle track number 5...
[v02] Extracting video track number 2...
[v02] Muxing video to Matroska...
[a04] Creating file "f:\Tais.dts"...
[s05] Creating file "f:\DE.sup"...
[a04] The last DTS frame is incomplete and thus gets skipped.
Added fps value to MKV header.
Video track 2 contains 125327 frames.
eac3to processing took 7 minutes, 46 seconds.
Done.

well, everything is OK, but the *.dts file is 2.34 GB and MediaInfo 0.7.7.8 (+ DTS: detection of DTS-HRA, DTS-MA, DTS-Express, thanks to http://madshi.net) reporting 3867 Kbps and also Haali Media Splitter...
sample: http://rapidshare.de/files/40920267/...mple_.dts.html

[madshi]

Originally Posted by n0mag!c

eac3to.exe pal.ac3 z:ntsc.ac3 -slowdown -quality=ultra -448
Command line parameter "quality=ultra" is unknown.

I guess 1st message description is outdated?
(And option "-r8brain" is correct now?)

Will update the first post. But I'm wondering: Is there a specific reason why you want to use r8brain instead of SSRC?

Originally Posted by rickardk

Can the final filesize of a FLAC track created by eac3to tell something about the quality?

It gives you a hint about the bitdepth. A higher bitdepth does not always have to mean that the quality is better. So you can not look at the file size alone. E.g. I'd consider a 16bit lossless track to be ever so slightly better than a DTS-HD High Resolution track (which is decoded by eac3to to 24bit).

Originally Posted by rickardk

I'm pretty sure eac3to said that the DTS-HD High Resolution track was 16 bit before decoding. But after looking at the spec of the created FLAC I see that it's actually 24 bit.

The DTS bitdepth reported by eac3to is a header field in the DTS track which tells us which bitdepth was fed into the DTS encoder. For lossy tracks this is just an information and has no use whatsoever for the decoder. So eac3to decodes to 24bit instead. For lossless tracks the situation is different, though...

Originally Posted by gregt

Anyone having problems with this title?

This could be either a ripping bug in AnyDVD HD or it could be an authoring fault. I'd suggest reporting this problem to the AnyDVD HD guys and see what they say. I'd say there is a good chance that this is a bug in AnyDVD HD, but I can't say for certain...

Originally Posted by itsancho

well, this i think is strange, at least for me. German Blu-ray, the movie is Tais-toi! well, everything is OK, but the *.dts file is 2.34 GB and MediaInfo 0.7.7.8 (+ DTS: detection of DTS-HRA, DTS-MA, DTS-Express, thanks to http://madshi.net) reporting 3867 Kbps...

This looks like a bug in eac3to. Will be fixed in the next build...

[odyssey]

I tried installing Nero 7 Showtime only from the Ultra package, but eac3to says "The Nero decoder doesn't seem to work, will use libav instead". How can I install the filter correctly? Better yet, can I install the filter without installing any Nero components? (such as extracting the nessesary files and registering them)

[odin24]

Originally Posted by odyssey

I tried installing Nero 7 Showtime only from the Ultra package, but eac3to says "The Nero decoder doesn't seem to work, will use libav instead". How can I install the filter correctly? Better yet, can I install the filter without installing any Nero components? (such as extracting the nessesary files and registering them)

You need the BD/HDDVD plugin installed too. I think you can have just Showtime installed and have eac3to work with it.

[odyssey]

Also if I'm just using it to transcode regular DVD AC3?

[odin24]

Originally Posted by odyssey

Also if I'm just using it to transcode regular DVD AC3?

Nero would be the preferable decoder, but libav does a good job too, which comes packaged with eac3to.

[nautilus7]

Originally Posted by odyssey

Also if I'm just using it to transcode regular DVD AC3?

You need the plugin so you can use the decoder. It's irrelevant of the source you're using.

[mochevolete]

Originally Posted by gregt

Anyone having problems with this title? I get the following:
N:\>eac3to BATTLE_PLANET_APES
1) 00013.mpls, 1:36:26
[65+54+68+56+70+57+72+58+74+59+76+60+78+61+80+62+82+63+84+64+86+87].m2ts
- h264/AVC, 1080p24 /1.001 (16:9)
- DTS Master Audio, English, multi-channel, 48khz
- AC3, English, stereo, 48khz
- AC3, Spanish, stereo, 48khz
- AC3, French, multi-channel, 48khz
- DTS Master Audio, English, multi-channel, 48khz

2) 00016.mpls, 1:26:32
[65+66+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87].m2ts
- h264/AVC, 1080p24 /1.001 (16:9)
- DTS Master Audio, English, multi-channel, 48khz
- AC3, English, stereo, 48khz
- AC3, Spanish, stereo, 48khz
- AC3, French, multi-channel, 48khz
- DTS Master Audio, English, multi-channel, 48khz

3) 00018.mpls, 00046.m2ts, 0:16:34
- h264/AVC, 1080p24 /1.001 (16:9)
- AC3, English, stereo, 48khz

N:\>eac3to BATTLE_PLANET_APES 1)
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

N:\>eac3to BATTLE_PLANET_APES 1) 2: BATTLE_PLANET_APES.mkv 3: BATTLE_PLANET_APES
.flac
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

N:\>eac3to BATTLE_PLANET_APES 2)
This TS/M2TS file seems to be damaged (sync byte missing).
This TS/M2TS file seems to be damaged (sync byte missing).
The format of the source file could not be detected.

I did not have any problems with the other Planet of the Apes discs. I am using v2.74.

had the same problem with another BR,
the BR itself played flawless (on the HD), but eac3to gave me the same error.

Solved remuxing the BR into another BR using this simple guide:
http://forum.slysoft.com/showpost.ph...81&postcount=1

then eac3to managed to do the job

Nik

[madshi]

eac3to v2.76 released

http://madshi.net/eac3to.zip

* "-slowdown" now works to convert 24.000 movies to 23.976
* "-speedup" now works to convert 24.000 movies to 25.000
* option "-xx.xxx" (e.g. "-24.000") sets the FPS of the source track
* option "-changeToXx.xxx" (e.g. "-changeTo23.976") changes video/audio FPS
* modified FPS information is written to video bitstream (VC-1, MPEG2, h264)
* demuxing with FPS change option now activates audio track transcoding
* SSRC resampling parameters modified slightly to reduce steepness and ringing
* fixed incorrect h264 movie slowdown gap/overlap complaints
* fixed DTS-HD High Resolution bitrate calculation
* dithering is now done differently per channel

Let me explain the new FPS changing options:

(1) If you have a source which contains FPS information, you don't need to tell eac3to which FPS the source has. E.g. if you feed eac3to a m2ts, TS, EVO or VOB file with a video track in it, eac3to will know which FPS the video and audio tracks have. So in this case you can just use "-slowdown" to convert both 24.000 and 25.000 movies to 23.976 fps. Or you can use "-speedup" to convert both 23.976 and 24.000 movies to 25.000 fps.

(2) If eac3to does not know the source FPS (which is usually the case if you feed eac3to with a demuxed audio track), you can still use the "-slowdown" and "-speedup" options. If you do that, eac3to will apply 25.000 -> 23.976 (slowdown) or 23.976 -> 25.000 (speedup) conversion.

(3) If you want to do any funny conversions. E.g. if you want to convert a 25.000 source to 24.000, you can use the option "-changeTo24.000". If eac3to knows the source FPS, that's all you need to do. If eac3to doesn't know the source FPS, you should do "-25.000 -changeTo24.000" to do a 25.000 -> 24.000 conversion.

(4) Generally, if the source is a container which contains both video and audio tracks, doing either "eac3to source -demux -anyFpsChangeOptions" or "eac3to source some.mkv -anyFpsChangeOptions" will result in eac3to doing FPS conversion for all audio and video tracks. Audio tracks will be transcoded in this situation. Lossless tracks will be transcoded to 24bit FLAC. Lossy tracks will be transcoded to 640kbps AC3.

(5) Video FPS changes will as usual not only result in adjusted MKV timestamps. eac3to will also automatically adjust the video bitstream itself to reflect the FPS value change.

[AnryV]

Originally Posted by tebasuna51

You can use WaveWizard or Sox command line:

Sox -M FL.wav FR.wav FC.wav LF.wav SL.wav SR.wav multichannel.wav

How to create the 7.1 multichannel wav? What is the correct order of the channells/files ?

[Thunderbolt8]

Originally Posted by madshi

* fixed incorrect h264 movie slowdown gap/overlap complaints

thanks, will test and report back in case something should still be wrong!

btw. if I slow down an audio track with delay, whats done first: the delay applied and then the track is slowed or the other way round (the message order on screen is first the fps conversion and after that applying the delay)?