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单词 noise suppressor
释义 noise suppressor
[`nȯiz sǝ´pres·ǝr]
ELECTRONICS
1. A circuit that blocks the audio- frequency amplifier of a radio receiver automatically when no carrier is being received, to eliminate background noise. Also known as squelch circuit.
2. A circuit that reduces record surface noise when playing phonograph records, generally by means of a filter that blocks out the higher frequencies where such noise predominates.
3. See <<noise limiter>>
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