Acoustic Feedback: A phenomenon where the sound from a loudspeaker is picked up by the microphone or other transducer, like a phono cartridge feeding it, and re-amplifys it through the same loudspeaker only to return to the same microphone to be re-amplified again, etc.. Each time the signal becomes larger until the system runs away and rings, or feeds back on itself producing the characteristic scream or squeal found in sound (mostly, PA) systems. These buildups often occur at particular frequencies called feedback frequencies.

 

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Acoustic Feedback: A phenomenon where the sound from a loudspeaker is picked up by the microphone or other transducer, like a phono cartridge feeding it, and re-amplifys it through the same loudspeaker only to . . . View Full Definition

Feedback: See acoustic feedback.

Negative Feedback: The dynamic comparison of a fraction of the output signal to the input signal at the input to an amplifier in such a way that the amplifier regulates it's output signal for maximal conformit . . . View Full Definition

Force feedback: True force feedback is when a controller is engineered to provide powered resistance against the motions made by the player. For example, a steering wheel that simulates the feel of the road . . . View Full Definition