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I've been using the Dazzle DVC-II hardware encoder to capture MPEG-2 files of older home videos. This device doesn't support uncompressed AVI files. It does a tremendous job as far as quality goes. There are some shortcomings as far as being able to monitor audio levels, etc. But for $200 it is a pretty darn good system. The resulting videos can be burned directly to DVD and are excellent in quality. Also, the video and audio are in sync for the entire clip, from 15 minutes to 90 minutes.
Because I wanted to clean up the captures with nice fade ins, fade outs, and some audio normalization, I brought the MPEG-2 files into VV3 and re-rendered them out again. The original MPEG captures were 8 mBit variable. I would then render them to 8 mBit variable. I know that multiple renderings to MPEG causes some deterioriation, but in my tests it just isn't detectable with my source material (VHS and some 8mm videos) and at the 8 mBit rate.
The strange thing, and one gentleman in Denmark has explained this in some detail, is that while the rendered video starts out in perfect audio/video sync, by 10 minutes in there is a noticable difference that gets worse as time goes on. The gentleman in Denmark gave a fairly detailed technical explanation, stating that VV3 really couldn't be used to edit MPEG videos. What gets me is that the 'Professional' MPEG support should be properly decoding the MPEG I have and making it into some sort of interim format that can be edited and is in sync.
So, does anyone know for certain if VV3 can be used to edit and render videos in the MPEG-2 format. Would I possibly have better luck if my capture was to MPEG-2 wiht a fixed bitrate, then I rendered to a variable bitrate in Vegas 3.
Any help appreciated.
Wayne
I've been using the Dazzle DVC-II hardware encoder to capture MPEG-2 files of older home videos. This device doesn't support uncompressed AVI files. It does a tremendous job as far as quality goes. There are some shortcomings as far as being able to monitor audio levels, etc. But for $200 it is a pretty darn good system. The resulting videos can be burned directly to DVD and are excellent in quality. Also, the video and audio are in sync for the entire clip, from 15 minutes to 90 minutes.
Because I wanted to clean up the captures with nice fade ins, fade outs, and some audio normalization, I brought the MPEG-2 files into VV3 and re-rendered them out again. The original MPEG captures were 8 mBit variable. I would then render them to 8 mBit variable. I know that multiple renderings to MPEG causes some deterioriation, but in my tests it just isn't detectable with my source material (VHS and some 8mm videos) and at the 8 mBit rate.
The strange thing, and one gentleman in Denmark has explained this in some detail, is that while the rendered video starts out in perfect audio/video sync, by 10 minutes in there is a noticable difference that gets worse as time goes on. The gentleman in Denmark gave a fairly detailed technical explanation, stating that VV3 really couldn't be used to edit MPEG videos. What gets me is that the 'Professional' MPEG support should be properly decoding the MPEG I have and making it into some sort of interim format that can be edited and is in sync.
So, does anyone know for certain if VV3 can be used to edit and render videos in the MPEG-2 format. Would I possibly have better luck if my capture was to MPEG-2 wiht a fixed bitrate, then I rendered to a variable bitrate in Vegas 3.
Any help appreciated.
Wayne