From Longman Dictionary of Contemporary Englishsound effectsˈsound efˌfects noun [plural] TCBAMsounds produced artificially for a radio or television programme, a film etc
Examples from the Corpus
sound effects• Inside lurk 211 wide-ranging drum and percussion sounds, 30 sound effects and nine bass sounds.• With modern commentary and sound effects.• Joe Meek's futuristic sound effects made Telstar Britain's most successful pop instrumental.• The props - ruins, guns, sound effects - were always there.• Voice over Music ending on sound effects.• Taping your own sound effects is another interesting part of video movie making: it can become almost a hobby in itself.• Special sound effects were still a problem though. 