Feedback is usually a bad thing. It sounds like this.
It happens when microphones pick up what's coming out of the speakers:
To fix it, put the microphone behind the speakers (not in front of them), or turn the speaker volume down or off.
Audio Feedback
Feedback is usually a bad thing. It sounds like this.
It happens when microphones pick up what's coming out of the speakers:
To fix it, put the microphone behind the speakers (not in front of them), or turn the speaker volume down or off.
Credits (you don't have to copy this part):
Feedback sound from: http://www.archive.org/download/WilliamDyerSoundEffectsLibrary
Original image (I altered it) from: http://www.mediacollege.com/audio/howto/feedback.html