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The Peak Program Meter and the VU Meter in Broadcasting

The peak program meter (PPM) is hear to stay. ABC has about 100 PPMs in operation throughout control rooms in New York City and the Washington News Bureau. All new audio consoles will be equipped with PPMs. The use of PPMs reduces, if not eliminates, the occasional over-modulations by signals too short to be registered on vu meters, it reduces operator fatigue, allows easier level -riding,- and provides more consistent level readings than when using a vu meter. In this presentation a television monitor (from a video cassette) displays both meters side by side showing the meter deflections of the audio signal that one hears, at the same time strip-chart recordings of the meter deflections are shown on a projection screen.

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