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13th July 2010, 17:59 | #10321 | Link |
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Sometimes, when I join multiple m2ts files and demux the streams, the end result shows 13 hours as duration.
I join multiple m2ts files from branched discs, for backup as a single m2ts. So it should have 2 hours, not 13. |
16th July 2010, 15:39 | #10322 | Link |
Matroska find' ich toll
Join Date: Apr 2008
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hello
can everybody help me with the second pass. i have a trueHD track. i want convert it to flac. when the first pass ready the second pass starts, with the message superfluous bits detected: reduce bitdepth from 24 to 16bit. but the second-pass-file sounds damaged. But the first-pass-flie sounds good(perfect) is there an option to disable the second pass? and how i get a full-list of the option by eac3to? Last edited by hubblec4; 16th July 2010 at 21:38. |
16th July 2010, 15:55 | #10324 | Link | |
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Quote:
but I'm not sure if dropping the 2nd pass will be a solution |
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16th July 2010, 15:57 | #10325 | Link |
Matroska find' ich toll
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you cant understand speech in this file. the musik is distorted. icant explain that exactly, but you hear nothing right.
the bit depth reducing from 24 to 16 bit is not necessary. you know the option to disable the second pass? i can manually abort the cmd after finished the first pass and then i have the firstpass-file. Last edited by hubblec4; 16th July 2010 at 21:37. |
16th July 2010, 15:57 | #10326 | Link | |
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Quote:
i think is a good solution, because the firstpass-audio sounds perfect with a bit depth of 24. and the secondpass-file with 16bit sounds very bad. Last edited by hubblec4; 16th July 2010 at 21:36. |
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16th July 2010, 16:11 | #10327 | Link | |
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Quote:
I suspect there is something (slightly) wrong with the file and that's why the second pass produces garbage (this happend to me once). In any event, if the result of the first pass is ok, i.e. audio is in sync throughout the movie, you can use that of course. |
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16th July 2010, 17:44 | #10328 | Link |
Matroska find' ich toll
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here the log with second-pass
eac3to v3.21 command line: eac3to.exe "00000 - 6 - TrueHD+AC3, German, 5.1 channels, 48kHz DELAY 125ms.thd+ac3" "deu.flac" -50mb ------------------------------------------------------------------------------ TrueHD/AC3, 5.1 channels, 48kHz (embedded: AC3, 5.1 channels, 640kbps, 48kHz) Extracting TrueHD stream... Decoding with libav/ffmpeg... Encoding FLAC with libFlac... Creating file "deu.flac"... The original audio track has a constant bit depth of 16 bits. Superfluous zero bytes detected, will be stripped in 2nd pass. Starting 2nd pass... Decoding FLAC... Reducing depth from 24 to 16 bits... Encoding FLAC with libFlac... Creating file "deu.flac"... The processed audio track has a constant bit depth of 16 bits. eac3to processing took 25 seconds. Done. |
16th July 2010, 19:54 | #10330 | Link |
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@madshi
can you add option to automatically ignore .m2ts in playlist if number of audio channels is not constant. In this example also frame rate is different in first file. Movie Downfall Code:
eac3to v3.22 ------------------------------------------------------------------------------ 1) 00014.mpls, 00034.m2ts+00014.m2ts, 2:35:21 - Chapters, 35 chapters - VC-1, 1080p24 /1.001 (16:9) - AC3, German, stereo, 48kHz 00034.m2ts M2TS, 1 video track, 1 audio track, 0:00:37, 29.766p 1: Chapters, 35 chapters 2: VC-1, 1080p24 /1.001 (16:9) 3: AC3, German, 2.0 channels, 192kbps, 48kHz, dialnorm: -27dB 00014.m2ts M2TS, 1 video track, 1 audio track, 0:00:29, 24p /1.001 1: VC-1, 1080p24 /1.001 (16:9) 2: AC3, German, 5.1 channels, 640kbps, 48kHz, dialnorm: -27dB http://www.mediafire.com/file/zyyedj..._CLIPPED.zip_0 http://www.mediafire.com/file/hujn1t..._CLIPPED.zip_1 http://www.mediafire.com/file/n1zmqn..._CLIPPED.zip_2 you will have to combine them before extracting: Code:
copy DOWNFALL_CLIPPED.zip_0 /b + DOWNFALL_CLIPPED.zip_1 /b + DOWNFALL_CLIPPED.zip_2 /b DOWNFALL_CLIPPED.zip /b
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16th July 2010, 20:57 | #10331 | Link |
Matroska find' ich toll
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ok you have right. with eac3to3.22 it works. eac3to make the second-pass and reduce the bitdepth to 16bit. but the file size is the same like 24bit. before the 24bit file was 1,4gb and the 16bit-file 0,9gb.
why two passes? the truehd+ac3-source is 16bit and eac3to convert it to 24bit first and then to 16bit?? so i can use the switch -down16 then start eac3to one pass only. Last edited by hubblec4; 16th July 2010 at 21:45. |
17th July 2010, 09:34 | #10332 | Link | |
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Quote:
If you start using always the -down16, the files which would be effectively 24 bit will be reduced to 16 bit, and you might not want that. |
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17th July 2010, 17:54 | #10334 | Link | |
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Quote:
However, if this is an audible loss of audio quality is highly questionable. I only use 16 bit for all formats. |
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17th July 2010, 18:21 | #10335 | Link |
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Just a quick question google has not helped with.
I would like to downmix dts to 2.0, which is easy. But I cannot seem to find what flac compression options eac3to uses? Can I choose 8? Or does it do that by default? thanks!!! |
17th July 2010, 19:15 | #10336 | Link |
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eac3to uses level 8:
http://forum.doom9.org/showthread.ph...el#post1222771 |
18th July 2010, 14:06 | #10337 | Link | |
Matroska find' ich toll
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Quote:
i dont use the switch -down16 for other convertions. only in this case. with the v3.22 create eac3to a 24bit firstpass file and then the secondpass file with 16bit, which works fine. the original truhd.file is defintiv 16bit. |
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20th July 2010, 22:06 | #10339 | Link | |
Matroska find' ich toll
Join Date: Apr 2008
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Quote:
you can use this switch +400ms (eac3to input.xxx output.xxx +/-400ms |
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