Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > General > Audio encoding

Reply
 
Thread Tools Search this Thread Display Modes
Old 20th June 2010, 22:00   #10181  |  Link
madshi
Registered Developer
 
Join Date: Sep 2006
Posts: 9,126
Quote:
Originally Posted by laserfan View Post
I'm a chapter-fanatic mysself. After I extract chapters.txt with eac3to, then convert to frames (and tsMuxeR timecodes) using shon3i's ChapterGen tool, I next examine each chapter location against the DGIndexNV-indexed video in VirtualDub, looking for discrepancies between the chapter marks and the video scene changes. In most (all?) BD cases these chapter marks fall exactly on the first frame of a new scene.
Quote:
Originally Posted by SomeJoe View Post
I agree that the spec seems to be very specific and shouldn't leave any doubt about where the chapter point is. If the chapter points end up being off by a 1001/1000 ratio, then you would surmise that it's essentially an authoring error on the disc -- the timecodes were NDF prior to the BD being authored, and no conversion was applied during authoring.

I'll do some further research and see if I can find some additional info on some of the BDs I have.
@SomeJoe, if you read laserfan's post, it seems that in his experience most Blu-Rays seem to have proper chapter marks (at least when using h264). I tend to agree with you that if 1001 is needed, it's probably an authoring error.

Quote:
Originally Posted by MikeEby View Post
Yes the dummy file 00023.m2ts is first file in the playlist and it is just a studio logo that is 10 seconds long. It also only has PCM audio tracks, while the second file is the main movie (00000.m2ts) has a DTS-HD track. Eac3to does create the all the files requested for the first file but seems to quits when it sees the second file 00000.m2ts that contains the DTS-HD track. See my screen shots from MediaInfo posted above.
Which movie is that?

Quote:
Originally Posted by Thunderbolt8 View Post
Ive encountered the same problem twice now, for example with saving private ryan (US) as well. and also criterion and some other studios now include their logos as seperate small .m2ts file which then preceeds the main movie more often than before. therefore it would be nice if you could come up with a solution here.
Please drop a comment here whenever you see this problem. Maybe we'll have luck and I have one of those Blu-Rays myself. However, I've not really stumbled over this problem myself yet.

Quote:
Originally Posted by lchiu7 View Post
Never mind. While I don't know what the problem was I found a way around it.
Not sure myself where the problem came from, but the eac3to you're using is pretty old.

Quote:
Originally Posted by Midzuki View Post
OK, I've just found this: [...]

However additional comments would be welcome of course.
I think that's the only speaker combination which makes problems. At least the only one I'm aware of.

Quote:
Originally Posted by NASRMAX View Post
Hello, I am currently in the process of testing this new version eac3to I thank Madshi for this work, the extension mkv demux for Bluray 3D works only for the left eye, having extracted without H.264 contenair, the right eye does not pass in mkvmerge, it is progressing well, hoping an update that fixes this
The Haali MKV Muxer (which eac3to is using) does not support the right eye stream format. So that's why eac3to cannot mux the right eye stream to MKV. mkvmerge currently doesn't support it, either. I've already given Mosu (the mkvmerge creator) all the information he needs, but he says that it's not a high priority for him currently. There's not much else I can do here...
madshi is offline   Reply With Quote
Old 20th June 2010, 22:11   #10182  |  Link
NASRMAX
Registered User
 
Join Date: Mar 2010
Posts: 3
thank you for your reply Madshi, I wait, it's already very good work you made, keep up the good ...;-)
NASRMAX is offline   Reply With Quote
Old 21st June 2010, 03:23   #10183  |  Link
TinTime
Registered User
 
Join Date: Jan 2009
Location: UK
Posts: 403
Quote:
Originally Posted by madshi View Post
Code:
* fixed: reducing bitdepth of clipped audio produced too much bitdepth
Thanks very much for that!
TinTime is offline   Reply With Quote
Old 21st June 2010, 13:43   #10184  |  Link
MikeEby
Registered User
 
Join Date: Apr 2010
Posts: 24
Quote:
Originally Posted by MikeEby View Post
Yes the dummy file 00023.m2ts is first file in the playlist and it is just a studio logo that is 10 seconds long. It also only has PCM audio tracks, while the second file is the main movie (00000.m2ts) has a DTS-HD track. Eac3to does create the all the files requested for the first file but seems to quits when it sees the second file 00000.m2ts that contains the DTS-HD track.

Quote:
Originally Posted by madshi View Post


Which movie is that?

Region A (US) "Mary and Max".

Mike
__________________
Another EAC3to GUI Plus
MikeEby is offline   Reply With Quote
Old 21st June 2010, 18:00   #10185  |  Link
Thunderbolt8
Registered User
 
Join Date: Sep 2006
Posts: 2,168
Quote:
Originally Posted by madshi View Post
Please drop a comment here whenever you see this problem. Maybe we'll have luck and I have one of those Blu-Rays myself. However, I've not really stumbled over this problem myself yet.
might be releated, got this parsing problem where the cursor only parses the playlist up to the 2nd last marking, but then doesnt display anything, but jumps back to the directory prompt. same situation here, the big main movie is preceeded by a small studio logo .m2ts file. movie is 'happy together' by kino.

Last edited by Thunderbolt8; 21st June 2010 at 18:03.
Thunderbolt8 is offline   Reply With Quote
Old 21st June 2010, 19:54   #10186  |  Link
DruidCtba
Registered User
 
Join Date: Sep 2009
Posts: 15
Audio NTSC 29.976 to 23.976 with distortion

Hi friends I have a problem to convert audio NTSC 29.976 fps to 23.976 because occurs one slowdown in audio, how to resolved this problem?

I used: eac3to.exe 8mm.ac3 8mm23976.ac3 -224 -29.976 -changeTo23.976

Thanky for your attention.
DruidCtba is offline   Reply With Quote
Old 21st June 2010, 20:34   #10187  |  Link
Wojszwillo
Registered User
 
Join Date: May 2010
Posts: 4
Quote:
Originally Posted by DruidCtba View Post
Hi friends I have a problem to convert audio NTSC 29.976 fps to 23.976 because occurs one slowdown in audio, how to resolved this problem?

I used: eac3to.exe 8mm.ac3 8mm23976.ac3 -224 -29.976 -changeTo23.976

Thanky for your attention.
There exists framerates for NTSC material 24000/1001 (ie 23,976) and 30000/1001 (ie 29,97), but not 29,976...
Wojszwillo is offline   Reply With Quote
Old 22nd June 2010, 07:42   #10188  |  Link
GZZ
Registered User
 
Join Date: Jan 2002
Posts: 473
Quote:
Originally Posted by Thunderbolt8 View Post
might be releated, got this parsing problem where the cursor only parses the playlist up to the 2nd last marking, but then doesnt display anything, but jumps back to the directory prompt. same situation here, the big main movie is preceeded by a small studio logo .m2ts file. movie is 'happy together' by kino.
Not sure if its the same issue, but if you mount a bluray image in Virtuel Clone Drive and set the option buffered I/O, then eac3to will fail to parse a bluray, it simple quit to cmd prompt without doing anything, no error, no nothing.
GZZ is offline   Reply With Quote
Old 22nd June 2010, 17:07   #10189  |  Link
DruidCtba
Registered User
 
Join Date: Sep 2009
Posts: 15
Ok friend Wojszwillo then consider 30000/1001, how to resolve the problem so that no distortion occurs in the audio that has been occurring when passing from 30000/1001 to 24000/1001, how could you answer me?
DruidCtba is offline   Reply With Quote
Old 22nd June 2010, 17:18   #10190  |  Link
madshi
Registered Developer
 
Join Date: Sep 2006
Posts: 9,126
@DruidCtba, NTSC 30000/1001 is a framerate for interlaced video. Audio is 24000/1001. Your audio is not 30000/1001. There's no need to change anything. You don't need to slowdown your audio nor video. Slowdown/speedup is for converting between NTSC <-> PAL.
madshi is offline   Reply With Quote
Old 22nd June 2010, 23:39   #10191  |  Link
Momber
Registered User
 
Join Date: Mar 2007
Posts: 217
I just noticed that a bug which I had reported months ago is still present.
The mapping of 3.0 soundtracks converted to flac is incorrect. The center channel ends up in the left surround.
This time the source was DTS MA 3.0 (last time: PCM 3.0), as found on the Criterion BluRays of Yojimbo and Sanjuro, so I don't think it's a decoder problem.
When creating Mono-Wavs instead of flac, the three tracks are correctly titled L, R and C.

Last edited by Momber; 22nd June 2010 at 23:50.
Momber is offline   Reply With Quote
Old 23rd June 2010, 02:00   #10192  |  Link
DruidCtba
Registered User
 
Join Date: Sep 2009
Posts: 15
OK my friend madshi thank you for your answer, now I understand it.
DruidCtba is offline   Reply With Quote
Old 23rd June 2010, 03:15   #10193  |  Link
Midzuki
Unavailable
 
Join Date: Mar 2009
Location: offline
Posts: 1,477
Quote:
Originally Posted by Momber View Post
...
The mapping of 3.0 soundtracks converted to flac is incorrect. The center channel ends up in the left surround.
...
When creating Mono-Wavs instead of flac, the three tracks are correctly titled L, R and C.
To me it seems a design flaw of the FLAC .dll
<DEL>(OR of the Flac decoder you're using)</DEL>,
not a problem in eac3to itself.
<DEL>¿What does MediaInfo says about the "bad" Flac file?</DEL>

P.S.:

BTW, the avcodec library hasn't been updated.

P.P.S.:

Perhaps madshi could add a "FLAC's_problems.txt"
to the next eac3to packages ???

Last edited by Midzuki; 23rd June 2010 at 03:42.
Midzuki is offline   Reply With Quote
Old 23rd June 2010, 16:22   #10194  |  Link
Momber
Registered User
 
Join Date: Mar 2007
Posts: 217
Quote:
Originally Posted by Midzuki View Post
What does MediaInfo says about the "bad" Flac file?
Code:
General
Complete name                    : Sanjuro JAP.flac
Format                           : FLAC
Format/Info                      : Free Lossless Audio Codec
File size                        : 947 MiB
Duration                         : 1h 35mn
Overall bit rate                 : 1 379 Kbps
WAVEFORMATEXTENSIBLE_CHANNEL_MAS : 0X7
VALID_BITS                       : 24
HDCD                             : 0

Audio
Format                           : FLAC
Format/Info                      : Free Lossless Audio Codec
Duration                         : 1h 35mn
Bit rate mode                    : Variable
Bit rate                         : 1 379 Kbps
Channel(s)                       : 3 channels
Sampling rate                    : 48.0 KHz
Resolution                       : 24 bits
Stream size                      : 947 MiB (100%)
Writing library                  : libFLAC 1.2.1 (UTC 2007-09-17)
Momber is offline   Reply With Quote
Old 23rd June 2010, 17:02   #10195  |  Link
Midzuki
Unavailable
 
Join Date: Mar 2009
Location: offline
Posts: 1,477
@ Momber:

the FLAC generated by eac3to seems OK;

the problem is, there are NO Flac decoders that honor the
W-F-Ext ChannelMask flag...
Midzuki is offline   Reply With Quote
Old 24th June 2010, 12:26   #10196  |  Link
Momber
Registered User
 
Join Date: Mar 2007
Posts: 217
Quote:
Originally Posted by Midzuki View Post
the problem is, there are NO Flac decoders that honor the
W-F-Ext ChannelMask flag...
If that is the case, perhaps it would be a good idea for eac3to to simply decline the encoding of 3.0 files to flac for the time being.
A little message along the lines of "3.0 FLAC channel mapping not supported - choose AC3 or DTS encoding instead".

Just an idea.
Momber is offline   Reply With Quote
Old 24th June 2010, 19:42   #10197  |  Link
deank
Programmer (or just 教务长)
 
deank's Avatar
 
Join Date: Oct 2008
Location: Sofia, Bulgaria
Posts: 4,247
@madshi: A feature request for two options:

-cutF (cut at frame)
-cutT (cut at HH:MM:SS.MLS) (or any variation using time format)

These two are so useful for testing or when one needs to truncate the output at given frame or time.

And again - thank you for the great tool, allowing for so many other applications to do their job.

Dean
__________________
multiAVCHD - donate | popBD | uncropMKV | mkv2avi | easySUP
deank is offline   Reply With Quote
Old 24th June 2010, 20:59   #10198  |  Link
AnryV
Registered User
 
Join Date: Jun 2007
Posts: 42
Quote:
eac3to v3.21
command line: F:\HD-VIDEO\0_Progs\eac3to264\eac3to 51_-4DN.dtshd 51_-4DN.wavs
------------------------------------------------------------------------------
DTS Master Audio, 5.1 channels, 16 bits, 48kHz, dialnorm: -4dB
(core: DTS, 5.1 channels, 16 bits, 1509kbps, 48kHz, dialnorm: -4dB)
Decoding with ArcSoft DTS Decoder...
Removing DTS dialog normalization...
Writing WAVs...
The original audio track has a constant bit depth of 16 bits.
Creating file "51_-4DN.L.wav"...
Creating file "51_-4DN.R.wav"...
Creating file "51_-4DN.C.wav"...
Creating file "51_-4DN.LFE.wav"...
Creating file "51_-4DN.SL.wav"...
Creating file "51_-4DN.SR.wav"...
eac3to processing took 1 second.
Done.
eac3to don't remove the dialog normalization with Arcsoft decoder (1.1.0.1)

Test .dtshd

http://multi-up.com/295013

DNorm.rar - center before and after decoding.

This procedure also does not help.

Quote:
eac3to v3.21
command line: F:\HD-VIDEO\0_Progs\eac3to264\eac3to 51_-4DN.dtshd 51_-4DN_removed.dtshd
------------------------------------------------------------------------------
DTS Master Audio, 5.1 channels, 16 bits, 48kHz, dialnorm: -4dB
(core: DTS, 5.1 channels, 16 bits, 1509kbps, 48kHz, dialnorm: -4dB)
Removing DTS dialog normalization...
Creating file "51_-4DN_removed.dtshd"...
eac3to processing took 1 second.
Done.
Attached Files
File Type: rar DNorm.rar (96.2 KB, 18 views)

Last edited by AnryV; 24th June 2010 at 21:15.
AnryV is offline   Reply With Quote
Old 25th June 2010, 06:13   #10199  |  Link
ACrowley
Registered User
 
Join Date: Apr 2006
Posts: 1,008
Hi

Can i automate WavAviMux.exe in any Way in the eac3to chain ?
I need 5.1 interelaved Waves muxed in AVI (4Gb+)for some Apps

@ AnryV
Interesting !
However.. i thought most DTS-HD encodes use -31db Dialnorm, so theres no Attenuattion defacto ?

I feel always most comfortable when i can decode DTS(HD) with DTS-HD Streamplayer because its the Reference Decoder. You can disable DialNorm/DRC in the Settings.
But DTS-HD Tracks demuxed from M2TS/MKV cant be used in the StreamPlayer because the additional DTS-HD Header Infos are missing (standard DTS works)
Im still hoping that somebody write a Small app (better eacto3 support) to Add/Strip the extra Bytes

Last edited by ACrowley; 25th June 2010 at 06:54.
ACrowley is offline   Reply With Quote
Old 25th June 2010, 09:55   #10200  |  Link
AnryV
Registered User
 
Join Date: Jun 2007
Posts: 42
Quote:
Originally Posted by ACrowley View Post
i thought most DTS-HD encodes use -31db Dialnorm, so theres no Attenuattion defacto ?
There are DTS-HD tracks with Dialnorm and I need to decode them correctly. Especially this concerns 7.1 tracks, which I cannot decode by using of Soniс decoder.
AnryV is offline   Reply With Quote
Reply

Tags
eac3to

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 20:12.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.