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Convention Paper

Dynamic Distortion Measurements in Broadcasting and Mixing Consoles

Authors: Otala, Matti; Hämäläinen, Sulo; Rantala, Kalevi

AES Convention 73 · Paper 1988 · March 1983

Abstract

Intermodulation distortion caused by the rate of change of the signal is reported as measured on a multi-span radio relay chain carrying broadcast sound signals, on a stereophonic broadcast FM transmitter/receiver path, and on three audio mixing consoles. The distortion, measured with the DIM (Dynamic InterModulation) method, ranges from a percent up to forty percent for nominal signal levels under conditions where the conventionally measured total harmonic distortion is a fraction of a percent. As the composition of the measurement signal closely resembles real-life signals, the present results suggest that this effect may be of significance in sound recording and broadcasting.

Details

Published in
AES Convention 73
AES Convention
73
Paper number
1988
Publication date
March 6, 1983
Affiliation
Technical Research Centre of Finland, Oulu, Finland ; Finnish Broadcasting Company, Helsinki, Finland (See document for exact affiliation information.)
Type
Convention Paper