Audio interference from illegal white video levels

[jmdocs]

Hello all,

I am working on a video restoration project, which involves some audio issues. I cannot for the life of me remember the technical term to describe the unwanted audio buzz that can occur when, say, the white text in white-on-black credits is too bright. Can anyone help? Also, is this something that may be inherent to a videotape (as in, the sound occurs independent of any monitor it may be played back on, including a plasma or other flatscreen) or is it dependent on the monitor, and a CRT-only issue?

Any advice is welcome.

Thanks very much,

Jeff Martin
Chicago, IL