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单词 peak programme meter
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peak programme meter
peak programme meter n. an instrument for monitoring transient peaks in a signal; abbreviated PPM.
ΚΠ
1941 B.B.C. Gloss. Broadcasting Terms 23 Peak programme meter, instrument used (especially for the purpose of facilitating control) to measure the volume of programme peaks, averaged over a period of less than one-hundredth of a second.
1962 A. Nisbett Technique Sound Studio v. 94 There are several types of meter that can be used to line up equipment or check for overmodulation; but a ‘peak programme meter’ (PPM) seems to be the most satisfactory instrument.
1995 Electronic Media (Nexis) 26 June 14 He also advised getting a VU (volume unit) meter and a Peak Program Meter to measure audio.
extracted from peakn.2adj.
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