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Suppression of Low-Level Impulse Noise

A more sensitive system for record impulse-noise suppression has been developed which is effective not only on large pops, but also on very small ticks. Audible damage to the program content is minimized by more rapidly detecting the noise in the ultrasonic region, switching the signal off for microseconds instead of milliseconds, and filling the gap with the low-frequency component.

JAES Volume 27 Issue 7/8 pp. 568-572; August 1979
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