| 单词 | noise gate | 
| 释义 | > as lemmasnoise gate   noise gate  n. Electronics a device which sends an electrical signal to halt the passage of another signal when it falls below some threshold value, used esp. in sound recording to mute all noise below a certain volume. ΚΠ 1983    Broadcasting 		(Nexis)	 4 Apr. 47  				Expander/noise gate/keyer, limiter/compressor/voice-over, parametric equalizer, quad low and high impedance mic preamp [etc.]. 1999    Personal Computer World Dec. 102/2  				Logic Gold now comes with 26 audio effects... These include a noise gate, compressor, expander, overdrive, reverb and tape delay. < as lemmas  | 
	
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