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  1. Originally Posted by clashradio View Post
    Is there ever a situation that calls for uncompressed capture?
    I would say no -- but I suppose there might be some application somewhere that only works with uncompressed video.
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  2. Video Restorer lordsmurf's Avatar
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    I've never come across uncompressed being required, neither hobby or pro settings.
    Uncompresses has too much resource overhead (I/O).

    FFV1 is also not good for capture, lots of incompatibilities.
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    I'm having decent luck using Huffyuv, but I can't view this lossless avi file in Vegas Pro. When I captured uncompressed I could drop that file in timeline. It's ok because I'm deinterlacing and upscaling with AVISynth and Vegas recognizes that new avi. One problem is I won't know if the audio and video are out of sync until I do the conversion.

    I'm currently having loss signal issues (but no dropped frames) with my vhs captures. I'm looking for an external full-frame TBC. You have a great section on this over at Digital FAQ. Didn't realize these things were going for that much $. I do have a Toshiba dvd recorder I bought for it's 3d comb filter. Going to test that next. I also have an Analog Devices EVAL 7842 board that has TBC; just not sure yet if it's line-based or full frame.
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  4. You can check A/V sync in AviSynth before deinterlacing.
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    To view the raw capture file I've been opening VirtualDub and dropping the file in. Is there a different way to view?

    But with this method I can't tell if the video & audio are the same length. When I open files in Vegas I can see the length of each track (video & audio) and I was having sync issues where the audio was about 15 frames longer than video. I adjusted a few settings in VirtualDub after viewing Lordsmurf's suggestions at Digital FAQ and solved that issue..
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  6. Note that audio and video don't have to be the same length. Often one of the other starts and/or ends seconds before or after the other. You only care if they are synchronized. Just play the script in VirtualDub to see if the audio and video are in sync.
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