Audio feedback is a phenomenon that occurs when sound generated by a microphone or a similar audio input device is picked up again by the same device or by other nearby microphones, creating a loop of sound. This typically happens in live sound environments, such as concerts or public speaking events, where a microphone amplifies audio from a loudspeaker. When the amplified sound is captured again by the microphone, it results in a continuous loop, which can produce a high-pitched screech or howl.
