Does audio feedback consist of harmonic content?

1. What is harmonic content in audio?
2. How does audio feedback work?
3. Where does audio feedback come from?
4. Is feedback a sine wave?

What is harmonic content in audio?

The harmonic content of a signal is what gives a sound it's timbre. This is what makes strings sound different from a flute. Harmonic distortion adds new harmonics that are musically related to the input signal.

How does audio feedback work?

Simply stated, feedback occurs whenever the sound entering a microphone is reproduced by a loudspeaker, picked up by the microphone, and re-amplified again and again. The familiar howl of feedback is an oscillation that is triggered by sound entering the microphone.

Where does audio feedback come from?

Feedback happens when the sound from the speakers is picked up by the microphone and is re-amplified and sent to the speakers again. This continuous loop results in the howl/rumble of the feedback effect.

Is feedback a sine wave?

Feedback Sine is a VCO (Voltage Controlled Oscillator). It is a sine wave oscillator with integrated phase modulation. It feeds its output straight back into its phase input, to add harmonics for creating more brilliant sounds.