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5th October 2007, 11:22 | #1041 | Link |
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made a 21,4mb sample from the letters trueHD track (couldnt get to press cancel in evodemux any faster :P)
used eac3to conversion to test 'eac3to letters.thd letters.flac' and got the information that this track contains more than 16-bit of information. flac size is 52,5mb http://www.megaupload.com/?d=P5OV5GZP btw. is the information for trueHD tracks that evodemux gives in the VTI window (quantization field) regarding their bit depth always accurate? or does it always show trueHD tracks with 24-bit, even though they only are 'real' 16-bit tracks sometimes? Last edited by Thunderbolt8; 5th October 2007 at 11:28. |
5th October 2007, 11:35 | #1042 | Link | |
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Example: we have a source 59 ms. long, after the delay we have 64.33 ms., we need 3 frames (3 x 32 ms = 96 ms) then is 37 ms. too long. |
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5th October 2007, 11:51 | #1043 | Link | |
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C:\Desktop>c:\sources\eac3to\eac3to letters.thd letters.flac TrueHD, 5.1 channels, 48khz, dialnorm: -27dB The following tasks are executed now. Please wait... - remove Dialog Normalization information - muxing TrueHD track into temp evo file Decoding TrueHD track to raw. Please wait... Checking raw data bitdepth. Please wait... This TrueHD track contains only 16 bit of information. The zero bytes were successfully removed from the raw file. Encoding the raw file to FLAC. Please wait... Done. letters.flac: 18.5MB I've no idea why this doesn't seem to work on your PC!!! Maybe you have a different version of the TrueHD decoder compared to mine? Maybe yours is applying DRC? I'm not sure. The best hint is the file size. If the TrueHD file is smaller than 2GB, it's most probably a 16bit track. |
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5th October 2007, 12:00 | #1044 | Link |
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trueHD filesize is 1.32GB
allright, again how can I check all my filters (nero, sonic) such to be absolutely sure they are the same/right ones you also use? theres should be at least no mistake in the eac3to directory, as I always overwrite the old files with the new ones. and eac3to is also not complaining that a filter is missing or something like that. but maybe I got an old version of something somwhere :S LOL I got it checked the nero product setup and beside that HDDVD/blue-ray plugin there were also a BD test and HDDVD test plugin installed. I remember once having installed them few days ago, because I wasnt sure if that hddvd/blue-ray plugin which was already registered there worked properly, due to other eac3to bugs at that time. "This TrueHD track contains only 16 bit of information. The zero bytes were successfully removed from the raw file." flac file size is 18,5mb now -.- shit, it was my own fault. sorry for taking up so much of your time with that :/ Last edited by Thunderbolt8; 5th October 2007 at 12:12. |
5th October 2007, 12:09 | #1045 | Link | |
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True HD file size is 1.57GB TrueHD, 5.1 channels, 48khz, dialnorm: -27dB The following tasks are executed now. Please wait... - remove Dialog Normalization information - muxing TrueHD track into temp evo file Decoding TrueHD track to raw. Please wait... Checking raw data bitdepth. Please wait... This TrueHD track contains only 16 bit of information. The zero bytes were successfully removed from the raw file. Encoding the raw file to FLAC. Please wait... Done. FLAC file size is 1.39 GB. Runtime now matches, being 2:34:19. This is with Superman Returns. When I get a chance to play it I will post the delay info. Thanks madshi. EDIT - comparing the file properties of the 1.18 flac and the 1.23 flac, the difference was the sampling rate, 44 vs 48, so you were correct, that was the issue. Thanks for fixing it. Last edited by TheSof; 5th October 2007 at 12:15. |
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5th October 2007, 12:16 | #1047 | Link |
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Thanks. Please also post the EvoDemux log of that TrueHD track. That goes to everyone: If you convert your TrueHD files to FLAC (or anything else) with the latest eac3to version, and if you need to apply a manual delay, please post your final delay value and the log from EvoDemux. Collecting this kind of information helps other people (they don't need to figure out the delay themselves) and it might also help finding a common base on how to calculate the delay automatically for a future eac3to version.
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5th October 2007, 12:19 | #1049 | Link |
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I don't know if mkvtoolnix can properly delay FLAC files. Can it? If it does, it might be the faster way to handle the delay. However, if you demux and remux the FLAC file, the delay might be gone (I'm not sure). When applying the delay with eac3to it's an everlasting fix/change.
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5th October 2007, 12:26 | #1050 | Link | |
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5th October 2007, 12:26 | #1051 | Link |
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ill demux the truehd track again with evodemux for the log file, once that conversion here is done (that bitdepth checking takes up lot of time now, was over before in 1 second :P)
should I post the complete log with all infos from all tracks or only certain parts or only the part when he begins to work with the demuxing? |
5th October 2007, 12:38 | #1052 | Link | |
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PTM of first video frame = 00000123 VC-1 video stream 0 found! First PTS = 00000123 Dolby TrueHD audio stream 0 found! First PTS = 00000123 |
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5th October 2007, 13:08 | #1053 | Link |
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I guess in cases we would have to apply offsetpts we should do this then before posting these infos, right?
for TrueHD 5.1 of letters from iwo jima (1st EVO) Code:
PTM of first video frame = 6736B4B1 VC-1 video stream 0 found! First PTS = 2736B4B1 (+35791394ms) Dolby TrueHD audio stream 1 found! First PTS = 2736B4B1 (+35791394ms) Dolby Digital Plus audio stream 0 found! First PTS = 6736B4B1 2h 20mn 37s 322ms = length of truehd -> flac 2h 20mn 37s 472ms = length of dd+ -> ac3 2h 20mn 37s 440ms = length of dd+ -> flac normal truehd -> flac length seemed to need a little delay, which was apparently frome some scenes. decided again to try the mathematical way and to take the difference between the truehd and eac3 track. chose the length of the eac3 -> flac track, because it might be a little more accurate due to those additional 32ms for ac3 frames. just seemed to make most sense to me to compare both of the flac conversions to each other. delay needed is 118ms then. I cant say that this is 100% exact the same delay now as on the source, but I would guess it might be, one just cant be sure 100% without being able to calculate it. at least it was the most accurate value for me so far, so I decided take this one. 118ms is btw also exact the same value I took as delay for the fear & loathing trueHD track. cant say if this is coincidence, just did (almost) the same here, converted the dd+ track to ac3 (and flac? cant remember any more if I converted the dd+ to both) and compared its length to the truehd -> flac track. the difference I got from there was also 118ms, same as here with letters from iwo jima. values for fear & loathing TrueHD 5.1 Code:
Opening file FEATURE_1.EVO PTM of first video frame = 00000D8E Dolby TrueHD audio stream 0 found! First PTS = 00000D8E Last edited by Thunderbolt8; 5th October 2007 at 13:37. |
5th October 2007, 14:08 | #1054 | Link | ||
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I've had 200ms with two TrueHD tracks as of yet. |
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5th October 2007, 15:00 | #1057 | Link |
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Let me start off by saying that I hate finding delays - I'm terrible at it and it takes me ages.
Having said that, I thought that superman returns stayed insync through out, without any delay. I'm going to try V for Vendetta and Harry Potter next. |
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