Assertion: microphone's output | /r/HasProperty | power amplified loudspeaker
Facets:
Source sentences:
text: Audio feedback (also known as acoustic feedback, simply as feedback, or the Larsen effect) is a special kind of positive loop gain which occurs when a sound loop exists between an audio input (for example, a microphone or guitar pickup) and an audio output (for example, a power amplified loudspeaker).