colema19
16th December 2003, 09:59
Hello all,
Please excuse my newb-ness. I just got a DVD burner so I'm trying to learn how to shovel my video files into DVD for playback.
I chose for a test file a video of a vacation I took many years back. The video was from an analog camera, captured, cleaned, then encoded to XVid with LAME mp3 audio(44.1KHz stereo).
I am having sync issues in every way I've tried this. I'm starting to think that maybe I just chose a poor source to work with.
I always do final authoring with Tsunami DVD Authoring. I always do the mpeg2 conversion with Tsunami MPEG encoder. I've been using various other tools to manipulate audio streams etc, details coming up.
So far I've tried straight conversion to an mpeg2 stream using the NTSC DVD profile of TMPEG.
I've tried replacing the audio stream with a separate stream processed using tools other then TMPEG. The test clip I am working with is exactly 30 minutes long. If I demux the audio stream with VDubMod, I get an mp3 exactly 30 minutes long. I have tried using both BeSweet and the diskwriter plugin of WinAmp to convert the audio to 48Khz PCMs and then from WAV to 2 channel AC3. I've also used BeSweet to transcode from mp3 directly to AC3. In each case with the WAV I'm always left with a file 3 seconds longer then the original mp3.
With any of those audio streams, and with the straight TMPEG produced mpeg stream, the audio is always fine at the beginning, but always has an offset by the end which I'm guessing is the 3 seconds I see when I convert to wav.
So anyways, I'm guessing that maybe the conversion process from the LAME VBR stream to PCM/AC3 is the culprit in my sync problem but I'm not positive. Does that sound right or is there something else I might be missing? Anyway to fix it?
Although I'd rather not, I am starting to think maybe I should recapture from the source tape and then remaster directly to the mpeg stream instead of trying to use the AVI(which btw has no sync issues).
Comments, hints, suggestions?
Thanks!
Please excuse my newb-ness. I just got a DVD burner so I'm trying to learn how to shovel my video files into DVD for playback.
I chose for a test file a video of a vacation I took many years back. The video was from an analog camera, captured, cleaned, then encoded to XVid with LAME mp3 audio(44.1KHz stereo).
I am having sync issues in every way I've tried this. I'm starting to think that maybe I just chose a poor source to work with.
I always do final authoring with Tsunami DVD Authoring. I always do the mpeg2 conversion with Tsunami MPEG encoder. I've been using various other tools to manipulate audio streams etc, details coming up.
So far I've tried straight conversion to an mpeg2 stream using the NTSC DVD profile of TMPEG.
I've tried replacing the audio stream with a separate stream processed using tools other then TMPEG. The test clip I am working with is exactly 30 minutes long. If I demux the audio stream with VDubMod, I get an mp3 exactly 30 minutes long. I have tried using both BeSweet and the diskwriter plugin of WinAmp to convert the audio to 48Khz PCMs and then from WAV to 2 channel AC3. I've also used BeSweet to transcode from mp3 directly to AC3. In each case with the WAV I'm always left with a file 3 seconds longer then the original mp3.
With any of those audio streams, and with the straight TMPEG produced mpeg stream, the audio is always fine at the beginning, but always has an offset by the end which I'm guessing is the 3 seconds I see when I convert to wav.
So anyways, I'm guessing that maybe the conversion process from the LAME VBR stream to PCM/AC3 is the culprit in my sync problem but I'm not positive. Does that sound right or is there something else I might be missing? Anyway to fix it?
Although I'd rather not, I am starting to think maybe I should recapture from the source tape and then remaster directly to the mpeg stream instead of trying to use the AVI(which btw has no sync issues).
Comments, hints, suggestions?
Thanks!