| 单词 | side tone | 
| 释义 | > as lemmasside tone   side tone  n. Telephony and Telecommunications the reproduction of a user's voice in his or her own telephone receiver; a signal in an earpiece that originates in the mouthpiece of the same instrument; sound so heard; (also) = side frequency n. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telephony > 			[noun]		 > signals or tones > interference side tone1893 singing1923 babble1930 1893    Electr. Engineer 2 Aug. 118/2  				Apparatus for Telephonic and Telegraphic Circuits... For the elimination of side tones or undesired signals. a1944    K. Douglas Alamein to Zem Zem 		(1946)	 38  				The operator..breathed and hummed into the microphone, listening for sidetone. 1978    Sci. Amer. Mar. 59/1  				Too little side tone gives the telephone an unnatural ‘dead’ sound. 1981    Direct Support, Gen. Support, & Depot Maintenance Man. 		(U.S. Dept. Army Techn. Man. 11-5820-35-1)	 1-15/1  				The audio amplifiers and headset permit the operator to hear a sidetone of the signal being transmitted. 2010    A. Morrison Bandwidth 176  				The delay in the transmission and the strange side tones meant that his voice was being bounced from a post far from here. < as lemmas  | 
	
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