Sound cracks & pops using studio 9se

Discussion in 'Amateur Video Production' started by phil, Feb 6, 2005.

  1. phil

    phil Guest

    Hi, I am using pinnacle studio 9se to create dvd's from my jvc vhsc
    camcorder. The picture captures fine, but for some reason when the captured
    video is played back (before and after rendering) the sound is full of pops
    and cracks continously throughout the video. I get the same problem if I
    capture from my sony video recorder. The sound is captured using the line in
    on my creative sb live 1024 player, but during capturing, the sound quality
    is perfect, the problem appears to occur between capturing and saving the
    resulting avi to the hard drive, because playing back the saved avi file
    within windows media player results in the same popping noise on the video.
    Any ideas would be very much appreciated.
    Thank you
     
    phil, Feb 6, 2005
    #1
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  2. phil

    Susan Guest

    Hi Phil,

    There a many possible reasons for audio and/or video to get messed up
    when capturing analog video, especially VHS-C. From your description
    the most likely problem is that you are trying to digitize a very
    unstable video signal and fields (or even frames) are having to be
    dropped, repeated or replaced to keep the video flow going.
    Unfortunately, while you usually can not see this taking place unless
    it is really bad, you can definitely hear the garbage being introduced
    into your audio stream to keep it and the video together.

    Remember, VHS is a terrible format, and VHS-C is even worse. If your
    camcorder is old and the tapes are old, there could also be all kinds
    of wear and stretching that has made your tapes nearly unplayable.
    While you might be able to watch them on a TV, capturing all that junk
    to a usable file on your PC is not an easy or effortless task.

    The quickest and easiest way to check if you have time-base problems
    is to run your analog video signal through a time base corrector
    before it is captured, and see if the audio problems disappear or get
    better. See if you can borrow or rent a good quality SVHS deck with
    built in TBC and try to re-capture. There is about a 90 percent
    chance this will fix your problems.

    Hope this helps,

    Susan
     
    Susan, Feb 7, 2005
    #2
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  3. phil

    phil Guest

    Hi, thanks for your input. The camcorder is a new model, only about a year
    old, and the tapes are also brand new, never been used before. This is a
    problem that I never had whilst using studio 7 on windows98 (although i did
    have plenty of other problems using studio 7 on win98), so i would appear to
    be something that has been introduced with either the later version of
    studio, or maybe even something to do with the soundcard on winXP.
    The video capture is perfect, and I can capture 2 hours worth of video
    (broken down into 10 minute sections) without any dropped frames at all.
     
    phil, Feb 7, 2005
    #3
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