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12th March 2010, 20:23 | #9821 | Link |
Derek Prestegard IRL
Join Date: Nov 2003
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Exactly.
They both decode to 6x mono 24 bit 48 KHz WAVs of identical length, which will therefore always be the same exact size. ~MiSfit
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12th March 2010, 21:02 | #9822 | Link |
NY Frame of Mind
Join Date: Dec 2005
Location: L.I.,NY
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OK, so if I'm understanding you both, supposedly I could reverse the process and create DD True HD again, or DTS MA, from those wavs ?
Or, to put it another way, any standard DD 5.1 ac-3 or DTS @ 1536 track can be made into a HD/MA track by extracting the wavs and reprocessing to HD ? If this is true, that's great !
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"Talk to me Goose" Last edited by rapscallion; 12th March 2010 at 21:10. |
12th March 2010, 21:20 | #9824 | Link |
NY Frame of Mind
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But I thought the newly created/extracted wavs were lossless ?
For instance, you can extract the audio wavs from an audio cd, convert them to MP3. Then you can reverse the process back to wavs again and you're back to lossless, no ? Or is my reasoning way off ? Also, it would appear that DTS MA has 24 bit resolution , where DD True HD does not. Created from the same wavs : Code:
General Complete name : D:\Blu-ray movies\Star Trek\star.ma.dts Format : DTS Format/Info : Digital Theater Systems Format profile : MA File size : 3.56 GiB Audio Format : DTS Format/Info : Digital Theater Systems Format profile : MA Bit rate mode : Variable Channel(s) : 6 channels Channel positions : Front: L C R, Surround: L R, LFE Sampling rate : 48.0 KHz Resolution : 24 bits Code:
General Complete name : D:\Blu-ray movies\Star Trek\true.track_4352.ac3 Format : AC-3 Format/Info : Audio Coding 3 Format profile : TrueHD File size : 3.76 GiB Audio Format : AC-3 Format/Info : Audio Coding 3 Format profile : TrueHD Bit rate mode : Variable Channel(s) : 6 channels Channel positions : Front: L C R, Surround: L R, LFE Sampling rate : 48.0 KHz
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"Talk to me Goose" Last edited by rapscallion; 12th March 2010 at 21:33. Reason: spelling |
14th March 2010, 13:25 | #9827 | Link |
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I'm trying to demux the Blade Runner "International Cut" from disc 3 of the 5-disc HD-DVD set. This disc contains 3 different versions of the movie and uses seamless branching (I think it's actually the only existing HD-DVD that uses branching).
Unfortunately, after demuxing with eac3to audio and video are out of sync, regardless of whether a gap description file is used or not. Does eac3to not support seamless branching on HD-DVD? |
14th March 2010, 15:52 | #9829 | Link |
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Log from first run (without gap description file):
Code:
eac3to v3.18 command line: eac3to h: 1) 2: chapts.txt 3: br.mkv 7: br.flac -down16 -no2ndpass 10: subs.sup ------------------------------------------------------------------------------ EVO, 1 video track, 6 audio tracks, 6 subtitle tracks, 1:57:29 1: Joined EVO file 2: Chapters, 35 chapters 3: VC-1, 1080p24 /1.001 (16:9) with pulldown flags 4: E-AC3, English, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB, -21ms 5: E-AC3 Surround, English, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -21ms 6: E-AC3 Surround, French, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -21ms 7: E-AC3, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB, -18ms 8: E-AC3 Surround, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB 9: E-AC3 Surround, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -7ms 10: Subtitle (DVD), English 11: Subtitle (DVD), French 12: Subtitle (DVD), Spanish 13: Subtitle (DVD) 14: Subtitle (DVD) 15: Subtitle (DVD) Creating file "chapts.txt"... [a07] The Nero decoder doesn't seem to work, will use libav instead. [v03] Extracting video track number 3... [a07] Extracting audio track number 7... [v03] Writing new framerate "24fps /1.001" to bitstream. [a07] Removing E-AC3 dialog normalization... [v03] Removing VC-1 pulldown... [a07] Decoding with libav/ffmpeg... [v03] Muxing video to Matroska... [a07] Remapping channels... [a07] Applying RAW/PCM delay... [a07] Reducing depth from 64 to 16 bits... [a07] Encoding FLAC with libFlac... [a07] Creating file "br.flac"... [s10] Extracting subtitle track number 10... [s10] Creating file "subs.sup"... [a07] Clipping detected, a 2nd pass will be necessary. <WARNING> [v03] Video overlaps for 705 frames at playtime 1:40:02. <WARNING> [v03] Video overlaps for 1 frames at playtime 1:40:32. <WARNING> [v03] Video overlaps for 7 frames at playtime 1:52:24. <WARNING> [v03] Video overlaps for 6 frames at playtime 1:52:25. <WARNING> [v03] The MKV file was created without making use of the gap/overlap information. <WARNING> [v03] Please check whether audio is in sync. If it is in sync everything is fine. <WARNING> [v03] Otherwise ask eac3to to repeat the muxing. It will then automatically make <WARNING> [v03] use of the detailed gap/overlap information. <WARNING> [a07] Audio overlaps for 4192ms at playtime 1:39:58. <WARNING> The 2nd pass is skipped by request. <WARNING> Added fps value (24 /1.001) to MKV header. Video track 3 contains 169079 frames. Subtitle track 10 contains 875 captions. eac3to processing took 37 minutes, 28 seconds. Done. Code:
eac3to v3.18 command line: eac3to h: 1) 2: chapts.txt 3: br.mkv 7: br.flac -down16 -no2ndpass 10: subs.sup ------------------------------------------------------------------------------ EVO, 1 video track, 6 audio tracks, 6 subtitle tracks, 1:57:29 1: Joined EVO file 2: Chapters, 35 chapters 3: VC-1, 1080p24 /1.001 (16:9) with pulldown flags 4: E-AC3, English, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB, -21ms 5: E-AC3 Surround, English, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -21ms 6: E-AC3 Surround, French, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -21ms 7: E-AC3, 5.1 channels, 640kbps, 48khz, dialnorm: -27dB, -18ms 8: E-AC3 Surround, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB 9: E-AC3 Surround, 2.0 channels, 192kbps, 48khz, dialnorm: -27dB, -7ms 10: Subtitle (DVD), English 11: Subtitle (DVD), French 12: Subtitle (DVD), Spanish 13: Subtitle (DVD) 14: Subtitle (DVD) 15: Subtitle (DVD) Creating file "chapts.txt"... [v03] Video gap description file detected, will be used for muxing... [a07] The Nero decoder doesn't seem to work, will use libav instead. [a07] Extracting audio track number 7... [v03] Extracting video track number 3... [a07] Removing E-AC3 dialog normalization... [v03] Writing new framerate "24fps /1.001" to bitstream. [a07] Decoding with libav/ffmpeg... [v03] Removing VC-1 pulldown... [a07] Remapping channels... [v03] Muxing video to Matroska... [a07] Applying RAW/PCM delay... [a07] Reducing depth from 64 to 16 bits... [a07] Encoding FLAC with libFlac... [a07] Creating file "br.flac"... [s10] Extracting subtitle track number 10... [s10] Creating file "subs.sup"... [a07] Clipping detected, a 2nd pass will be necessary. <WARNING> [a07] Audio overlaps for 4192ms at playtime 1:39:58. <WARNING> The 2nd pass is skipped by request. <WARNING> Added fps value (24 /1.001) to MKV header. Video track 3 contains 169079 frames. Subtitle track 10 contains 875 captions. eac3to processing took 37 minutes, 10 seconds. Done. |
14th March 2010, 19:33 | #9833 | Link |
Registered User
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No, it is not. The 2nd pass just transcodes the audio once more with different parameters to eliminate the clipping. It has nothing to do with gap repair. The asynchronicity also occurs if the option is not used or the audio is just extracted without transcoding.
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14th March 2010, 23:49 | #9834 | Link | |
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Quote:
i use wavs to create a new dts-hd ma and i wonder if this new option would change the audio level or does it not matter at all? Last edited by zeropc; 15th March 2010 at 00:33. |
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16th March 2010, 09:05 | #9835 | Link |
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Hi madshi
The Denon receivers also had problems with a -0db dialnorm, but ran 4 TrueHD tracks through the new eac3to version, and can happily announce, that it fixed the problem with low (-31db) audio and shifts in dialnorm. So, thanks!!! |
16th March 2010, 09:30 | #9836 | Link | ||||
Registered Developer
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Quote:
Full splitting/joining support is not planned right now. I've so many other things to do... Quote:
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Glad to hear that - thanks for the feedback! |
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16th March 2010, 10:09 | #9837 | Link | ||
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Last edited by Fiffy; 16th March 2010 at 10:11. |
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16th March 2010, 12:44 | #9838 | Link | |
Registered User
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17th March 2010, 16:55 | #9839 | Link | |
Registered User
Join Date: Nov 2009
Posts: 15
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Quote:
In case you choose your development priorities on the basis of how many people want a certain feature, here is another user who would like to see an easy way to split audio by chapter! |
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18th March 2010, 01:09 | #9840 | Link | |
4:2:0 hater
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