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Convention Paper

Real-Time Digital Distortion Analyzer

Authors: Turley, Andrew C.; Stikvoort, Eduard

AES Convention 90 · Paper 3019 · February 1991

Abstract

A real-time digital distortion analyzer has been designed to measure total harmonic distortion and noise in audio signals derived from digital sources such as analog-to-digital converters, compact disc players, digital audio tape recorders, and sample rate converters. The analyzer uses a frequency detector to control a notch filter which removes the test sine-wave or twin-tone signal between 10Hz and 20kHz. The remaining amplified total harmonic distortion and noise signal is computed and applied to a monitor digital-to-analog converter.

Details

Published in
AES Convention 90
AES Convention
90
Paper number
3019
Publication date
February 6, 1991
Session subject
Digital Technology and Measurement Techniques
Affiliation
Philips Research Labs., Eindhoven, The Netherlands (See document for exact affiliation information.)
Type
Convention Paper