feedback

On delays, higher feedback settings increase the number of repeats and can push the sound into saturation or oscillation, while low feedback keeps repeats clean and natural¹²³. On modulation effects like phasers and flangers, a feedback knob dials the intensity of the sweep from subtle to extreme¹⁴⁵. Some pedals are designed to generate feedback itself, from semi-random ambient feedback to tunable, pitched droning⁶⁷. Feedback-drenched tones are also associated with fuzz and shoegaze styles⁸⁹.