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20th December 2007, 00:53 | #2081 | Link | |
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20th December 2007, 03:24 | #2083 | Link |
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I recently tried my first DTS-HD --> DTS conversion. Went well insofaras got a perfect DTS stream, playable by itself. I muxed this DTS with the video AVC elementary stream using mkvmerge GUI.
If I mux just the AVC stream to .mkv, or just play it back by itself, plays perfectly and smoothly. I am using WMP 11 for playback. BUT... if I mux the DTS and AVC together, I get "problems." I am sending the bitstream out by SPDIF. First I tried ffdshow. The file overall plays, but every few seconds there's just a slight "jump" or hiccup. It is mild, but noticeable enough to be bothersome. Perhaps this is the audio and video trying to stay in sync? Then I tried AC3 filter for my SPDIF output of the DTS. This allows the file to play smoothly, but about 10 minutes in, the audio and video begin to noticeable desync. By 1 hour in, they're really out of sync (a few seconds). If I convert the DTS-HD into AC3 and mux that with my 1920x1080 AVC file, I get very smooth playback and no out-of-sync whatsoever. I'd love of course to start using DTS's higher bitrates, but I can't seem to conquer this. I have tried multiple iterations. Thoughts? |
20th December 2007, 03:49 | #2084 | Link | |
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20th December 2007, 04:04 | #2085 | Link |
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@madshi,
I just wanted to say thanks for the new version. Man you packed a lot of stuff into it. Very nice. I want to contribute any findings, so here goes. I have a short test pcm file that converts just fine to both ac3 and dts, see output below. However, when you run it to just get the info on the file, the program crashes, i.e., "eac3to audio.pcm" crashes. Output of eac3tov2 audio.pcm audio.ac3 -384 -16 -little Code:
This might be a RAW/PCM file. Trying to figure out the details. This will probably take a while. Please be patient... ---The RAW/PCM file seems to be little endian. ---The suggested endian (little) should be correct. ---The RAW/PCM file seems to have a bitdepth of 16 bits. ---The suggested depth of 16 bits should be correct. ---The RAW/PCM file seems to have 6 channels. ---RAW/PCM, 5.1 channels, 0:04:19, 16 bits, 48khz ---Reading RAW/PCM... Encoding AC3... Creating/writing file "audio.ac3"... ------------------------------------------------------------------------------- Done. Code:
This might be a RAW/PCM file. Trying to figure out the details. This will probably take a while. Please be patient... ---The RAW/PCM file seems to be little endian. ---The suggested endian (little) should be correct. ---The RAW/PCM file seems to have a bitdepth of 16 bits. ---The suggested depth of 16 bits should be correct. ---The RAW/PCM file seems to have 6 channels. ---RAW/PCM, 5.1 channels, 0:04:19, 16 bits, 48khz ---Reading RAW/PCM... Writing WAVs... Creating/writing file "audio.L.wav"... Creating/writing file "audio.R.wav"... Creating/writing file "audio.C.wav"... Creating/writing file "audio.LFE.wav"... Creating/writing file "audio.SL.wav"... Creating/writing file "audio.SR.wav"... ------------------------------------------------------------------------------- Found Surcode DTS Encoder version 1.0.23.0. Surcode encoding successfully started. Please wait... Closing Surcode... Done.
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20th December 2007, 04:35 | #2086 | Link | |
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The timecodes file I used was: # timecode format v1 Assume 23.976 Should this have produced a good DTS/AVC mkv merge? I did not use this to merge AVC and AC3 and the mkv plays back great (but did have to specify a 23.976 framerate in mkvmerge GUI). |
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20th December 2007, 04:50 | #2087 | Link | |
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I, personally, avoid WMP at all costs. Try using MPC and use its built-in source filters: DTS/AC3, Matroska and MPEG PS/TS/PVA. I normally use the Haali splitter, but at times, with DTS, I have to switch to MPC's internal filters to get smooth play back. Good luck.
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20th December 2007, 07:12 | #2089 | Link | |
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20th December 2007, 08:44 | #2090 | Link | |
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20th December 2007, 09:53 | #2091 | Link | |
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20th December 2007, 09:55 | #2092 | Link | |
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20th December 2007, 09:57 | #2093 | Link | |
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20th December 2007, 10:08 | #2094 | Link | |
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No, I didn't... |
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20th December 2007, 10:10 | #2095 | Link | |
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However, you need to have the commercial (and quite expensive) Surcode DTS encoder installed! |
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20th December 2007, 10:14 | #2096 | Link | |
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20th December 2007, 11:04 | #2097 | Link | |
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I tried the -check16bit switch, but it told me thats the track contains more than 16 bit of information. But how many exactly? How did the studio manage to make a track with variable bit depth? |
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20th December 2007, 11:15 | #2098 | Link | |
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I tried the -check16bit switch, but it told me that the track contains more than 16 bit of information. But how many exactly, none knows... How did the studio manage to make a track with variable bit depth? |
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20th December 2007, 11:18 | #2099 | Link |
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i think it's just constant 20bit.. the track the nero decoder had problems with before was inside man, and madshi suspected it could be 18 or 20bit.. i dithered some other 24bit tracks down to 20bit and they compressed to very similar bitrates
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