In subjective audio assessment, the exponentially decaying sinusoid (-electronic gong-) is one of the most valuable artificial signals. This paper describes the real-time generation of digital electronic gongs that are entirely free of distortion and noise modulation. A linearized fourth-order recursive filter is used. A novel error feedforward technique makes the filter's noise floor perfectly white.

Author: Travis, Chris
Affiliation: British Broadcasting Corporation, Design and Equipment Department, Chiswick, London, UK
AES Conference: 11th International Conference: Test & Measurement (May 1992)
Paper Number: 11-013
Publication Date: May 1, 1992
Subject: Test & Measurement

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