eac3to - audio conversion tool - Page 452

tebasuna51 · 24th June 2009, 09:53

Quote:

Originally Posted by AnryV

How can I disable "Patching bitdepth to 24 bits..." during extracting Core from DTS-HD?

I can't reproduce your problem extracting dts core:

Code:

eac3to v3.16
command line: "D:\eac3to.exe" "D:\Queen.dtshd" "D:\Queen_core.dts"
------------------------------------------------------------------------------
DTS Hi-Res, 5.1 channels, 0:00:14, 24 bits, 3018kbps, 96khz
(core: DTS, 5.1 channels, 0:00:14, 24 bits, 1509kbps, 48khz)
Creating file "D:\Queen_core.dts"...
eac3to processing took 1 second.
Done.

Please

rapscallion · 24th June 2009, 18:00

I've been playing around with Eac3to More GUI and find it interesting that a AC-3 640/448 track can be converted to a DTS 1536/768 track. (decoding with Nero and encoding w/Surcode)

If a BD souce disc has only a AC-3 track, under what circumstances would one want to convert it to DTS and what kind of quality, by comparison, would result. (I'm assuming that the original AC-3/ 640 is lower quality than DTS/ 1536...but ,of course realize there are many opinions on that)

TinTime · 24th June 2009, 18:38

If you convert AC3 to DTS then you will lose quality. It's not a question of DD vs. DTS.

The only circumstance you'd want to do this is for compatibility reasons. I doubt that there are any devices that can decode DTS but not AC3 though.

rapscallion · 24th June 2009, 18:50

Ok, thanks, was really curious about this.

rack04 · 24th June 2009, 20:24

Is Nero the only AAC decoder that will work with eac3to?

wswartzendruber · 24th June 2009, 22:10

How does eac3to find the codecs? Can I just drop the ArcSoft DTS-HD files in there and call it good, or do I have to install it? I know how to use regsvr32.

tebasuna51 · 24th June 2009, 23:32

Quote:

Originally Posted by wswartzendruber

How does eac3to find the codecs? Can I just drop the ArcSoft DTS-HD files in there and call it good, or do I have to install it? I know how to use regsvr32.

Read the first post in this thread.

tebasuna51 · 24th June 2009, 23:41

Quote:

Originally Posted by rack04

Is Nero the only AAC decoder that will work with eac3to?

Yes.
See this post.

wswartzendruber · 25th June 2009, 23:56

I'm wondering what the channel mapping will be of this output file:

Code:

eac3to input.thd output.raw

I can't seem to figure it out.

tebasuna51 · 26th June 2009, 00:22

The raw audio data must be identical than wav or w64, then the channel map must be FL,FR,FC,LF,BL,BR,SL,SR (if 7.1)

wswartzendruber · 26th June 2009, 10:20

Quote:

Originally Posted by tebasuna51

The raw audio data must be identical than wav or w64, then the channel map must be FL,FR,FC,LF,BL,BR,SL,SR (if 7.1)

Thanks, I've actually spent those few hours chasing an MPlayer bug.

GStramer seems to handle multichannel FLACs correctly.

jruggle · 26th June 2009, 17:07

Quote:

Originally Posted by htpc@rischer.at

@jruggle:
Do you remember my problem?
Do you have some informations how do convert the file into another format like .wav?
I tried it with ffmpeg 0.5, but i failed.

thank you very much...

The patch for FFmpeg to fix this is still pending final review.
This is the most recent patch if you want to try to apply it and compile your own binary:
http://article.gmane.org/gmane.comp....eg.devel/92029

Thunderbolt8 · 26th June 2009, 20:57

Quote:

Originally Posted by Thunderbolt8

how can I transform a .thd track to .dts again? when I enter it that way 'eac3to source.thd dest.dts' then I get 6 wav files first, but which are apparently not accepted by the surcode dts encoder and the process is cancelled.

anyone able to tell?

Code:

eac3to v3.16
command line: eac3to E:\input.thd E:\output.dts
------------------------------------------------------------------------------
TrueHD, 5.1 channels, 48khz
Decoding with libav/ffmpeg...
Writing WAVs...
Creating file "E:\output.R.wav"...
Creating file "E:\output.SR.wav"...
Creating file "E:\output.L.wav"...
Creating file "E:\output.C.wav"...
Creating file "E:\output.LFE.wav"...
Creating file "E:\output.SL.wav"...
[libav] End of stream indicated  <WARNING>
The original audio track has a constant bit depth of 16 bits.
Encoding DTS <1536kbps> with Surcode...
Found Surcode DTS Encoder version 1.0.29.0.
Surcode says/asks: "At least one valid source file must be specified to encode."
.
Pressing the Surcode "Encode" button didn't seem to work...
Closing Surcode...

regisso · 27th June 2009, 10:24

Quote:

Originally Posted by Thunderbolt8

anyone able to tell?

Code:

eac3to v3.16
command line: eac3to E:\input.thd E:\output.dts

I think it's because you don't have the DD core in your thd file, you should make a thd+ac3 file.

TinTime · 27th June 2009, 12:54

Quote:

Originally Posted by Thunderbolt8

anyone able to tell?

Code:

eac3to v3.16
command line: eac3to E:\input.thd E:\output.dts
------------------------------------------------------------------------------
TrueHD, 5.1 channels, 48khz
Decoding with libav/ffmpeg...
Writing WAVs...
Creating file "E:\output.R.wav"...
Creating file "E:\output.SR.wav"...
Creating file "E:\output.L.wav"...
Creating file "E:\output.C.wav"...
Creating file "E:\output.LFE.wav"...
Creating file "E:\output.SL.wav"...
[libav] End of stream indicated  <WARNING>
The original audio track has a constant bit depth of 16 bits.
Encoding DTS <1536kbps> with Surcode...
Found Surcode DTS Encoder version 1.0.29.0.
Surcode says/asks: "At least one valid source file must be specified to encode."
.
Pressing the Surcode "Encode" button didn't seem to work...
Closing Surcode...

If you convert to wavs using eac3to and encode manually with Surcode does it work?

Thunderbolt8 · 27th June 2009, 14:58

you mean manually encode with surcode by using that program? perhaps, but I don't want to have it like that. I remember I already had the same problem, I just dont know any more how I solved it back then :S

Quote:

Originally Posted by regisso

I think it's because you don't have the DD core in your thd file, you should make a thd+ac3 file.

would the ac3 track as lossy file be needed for that? shouldnt the same information be included in the lossless .thd anyway?

TinTime · 27th June 2009, 15:34

Quote:

Originally Posted by Thunderbolt8

you mean manually encode with surcode by using that program? perhaps, but I don't want to have it like that. I remember I already had the same problem, I just dont know any more how I solved it back then :S

I didn't mean as a permanent solution

It was just to test this particular file and try to narrow down the problem. Is it the wavs eac3to produces or the way eac3to calls Surcode or Surcode itself?

Does it work if you go from the original source rather than demuxing the thd track first?

pascalwil · 27th June 2009, 16:41

Anyone knows how to use Surcode DVD DTS Encoder in command line mode instead of using the GUI? Thanks.
eac3to does it this way. I would love to have an example of the script to use. Many thanks.

rapscallion · 27th June 2009, 22:03

I'm trying to extract the True HD (embedded core) audio stream from a *.m2ts file, using Eac3to and More GUI.

The "catch22" I'm running into is that the only way it will demux the correct stream (there's also a ac3/640 stream) is if I select "thd" as the save to file type. Then it extracts with a "thd" file extension, which Tsmuxer does not recognize. If I change the extension to "ac3", Tsmuxer says unsupported format. If I try to extract the stream as a ac3 file extension then the ac3/640 stream is extracted.

Yet, If I demux , using Tsmuxer, the THD stream is extracted correctly w/a ac3 file extension. Anyone's comments as to what the problem is with eac3to would be appreciated. Maybe I should be using a different/better GUI ?

TinTime · 27th June 2009, 22:23

Quote:

Originally Posted by rapscallion

I'm trying to extract the True HD (embedded core) audio stream from a *.m2ts file, using Eac3to and More GUI.

I don't use any eac3to GUI or Tsmuxer but if you have a TrueHD with embedded DD track then specifying output.thd in eac3to will demux just the TrueHD, output.ac3 will demux just the DD and output.thd+ac3 will demux the complete stream. Perhaps you need to do this last option?

24th June 2009, 18:00	#9022 \| Link
rapscallion NY Frame of Mind Join Date: Dec 2005 Location: L.I.,NY Posts: 586	I've been playing around with Eac3to More GUI and find it interesting that a AC-3 640/448 track can be converted to a DTS 1536/768 track. (decoding with Nero and encoding w/Surcode) If a BD souce disc has only a AC-3 track, under what circumstances would one want to convert it to DTS and what kind of quality, by comparison, would result. (I'm assuming that the original AC-3/ 640 is lower quality than DTS/ 1536...but ,of course realize there are many opinions on that) __________________ "Talk to me Goose"

24th June 2009, 18:50	#9024 \| Link
rapscallion NY Frame of Mind Join Date: Dec 2005 Location: L.I.,NY Posts: 586	Ok, thanks, was really curious about this. __________________ "Talk to me Goose"

25th June 2009, 23:56	#9029 \| Link
wswartzendruber hlg-tools Maintainer Join Date: Feb 2008 Posts: 413	I'm wondering what the channel mapping will be of this output file: Code: eac3to input.thd output.raw I can't seem to figure it out.

26th June 2009, 00:22	#9030 \| Link
tebasuna51 Moderator Join Date: Feb 2005 Location: Spain Posts: 6,915	The raw audio data must be identical than wav or w64, then the channel map must be FL,FR,FC,LF,BL,BR,SL,SR (if 7.1) __________________ BeHappy, AviSynth audio transcoder.

27th June 2009, 22:03	#9039 \| Link
rapscallion NY Frame of Mind Join Date: Dec 2005 Location: L.I.,NY Posts: 586	True HD I'm trying to extract the True HD (embedded core) audio stream from a *.m2ts file, using Eac3to and More GUI. The "catch22" I'm running into is that the only way it will demux the correct stream (there's also a ac3/640 stream) is if I select "thd" as the save to file type. Then it extracts with a "thd" file extension, which Tsmuxer does not recognize. If I change the extension to "ac3", Tsmuxer says unsupported format. If I try to extract the stream as a ac3 file extension then the ac3/640 stream is extracted. Yet, If I demux , using Tsmuxer, the THD stream is extracted correctly w/a ac3 file extension. Anyone's comments as to what the problem is with eac3to would be appreciated. Maybe I should be using a different/better GUI ? __________________ "Talk to me Goose"

24th June 2009, 18:38	#9023 \| Link
TinTime Registered User Join Date: Jan 2009 Location: UK Posts: 403	If you convert AC3 to DTS then you will lose quality. It's not a question of DD vs. DTS. The only circumstance you'd want to do this is for compatibility reasons. I doubt that there are any devices that can decode DTS but not AC3 though.

24th June 2009, 20:24	#9025 \| Link
rack04 Registered User Join Date: Mar 2006 Posts: 1,538	Is Nero the only AAC decoder that will work with eac3to?

24th June 2009, 22:10	#9026 \| Link
wswartzendruber hlg-tools Maintainer Join Date: Feb 2008 Posts: 413	How does eac3to find the codecs? Can I just drop the ArcSoft DTS-HD files in there and call it good, or do I have to install it? I know how to use regsvr32.

27th June 2009, 16:41	#9038 \| Link
pascalwil Registered User Join Date: Sep 2008 Location: France Posts: 61	Anyone knows how to use Surcode DVD DTS Encoder in command line mode instead of using the GUI? Thanks. eac3to does it this way. I would love to have an example of the script to use. Many thanks.