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Journal Article

Total Difference-Frequency Distortion: Practical Measurements

Authors: Small, Richard H.

Journal of the Audio Engineering Society · Volume 34 · Issue 6 · pp. 427–436 · June 1986

Abstract

A practical distortion meter using modern digital and analog integrated circuits has been designed to measure IEC total difference-frequency distortion (TDFD). the low noise and residuals of this instrument permit measurements down to one part per million (0.0001%) of distortion for signal levels of only 1 V peak to peak. The fully in-band TDFD test is simple, rapid, sensitive, and stringent, enabling informative results to be obtained on all classes of equipment. Sample measurements are presented for amplifiers, preamplifiers, open-reel and cassette tape recorders, a digital recording adapter, and a loudspeaker.

Details

Publication
Journal of the Audio Engineering Society
Volume
34
Issue
6
Pages
427–436
Publication date
June 6, 1986
Affiliation
School of Electrical Engineering, University of Sydney, NSW 2006, Australia (See document for exact affiliation information.)
Type
Journal Article