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Test Signals for Measuring the Efficiency of Audio Amplifiers

Measuring audio amplifier efficiency with sine-waves is not representative for use with real audio signals. It is investigated if the IEC-268 test signal, that has the amplitude- and frequency characteristics of audio, is suitable for predicting amplifier efficiency. The dissipation for real audio signal samples never deviate more than 20% from this prediction. An IEC variant is proposed that is more suitable for circuit simulations.

Authors: van der Zee, R. A. R.; van Tuijl, A. J. M
Affiliations: MESA Research institute University of Twente, Enschede, The Netherlands ; Philips Semiconductors, Nijmegen, The Netherlands(See document for exact affiliation information.)
AES Convention:104 (May 1998) Paper Number:4648 Import into BibTeX
Subject:Audio Electronics

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