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Convention Paper

A New Method for the Evaluation of Audio Amplifier Nonlinearities

Authors: Valacas, J.; Spyridoulias, S.; Lioliousis, C.

AES Convention 104 · Paper 4657 · May 1998

Abstract

A new method is proposed for the evaluation of nonlinear distortion of audio amplifiers, reproducing real musical signals. Output voltage and current are acquired and stored, for a comparatively large time segment. A close investigation of the resulting V-1 graph, by means of probability density function, provides an objective measure of amplifier's non linear state. Provided that a distortion probability value with inaudible results has been determined, such a measure can lead to a flexible estimate of maximum power ratings.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4657
Publication date
May 6, 1998
Session subject
Measurement and Instrumentation
Affiliation
University of Athens Physics Department Applied Physics Div. El. Lab., Athens, Greece (See document for exact affiliation information.)
Type
Convention Paper