ALL meanings of acoustic feedback
a·cous·tic feed·back
A a - noun acoustic feedback a type of feedback that is created when there is a sound loop linking an audio input and an audio output, such that a high-pitched squealing sound is produced 3
- noun acoustic feedback (in an audio system, especially a public-address system) the feedback of sound from a loudspeaker to a microphone, often resulting in a whistling noise caused by electrical oscillations. 1