Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Subjective Test of Class D Amplifiers Without Output Filter

Authors: Agerkvist, Finn T.; Fenger, Lars M.

AES Convention 117 · Paper 6241 · October 2004

Abstract

This paper presents subjective tests of the active transducers concept. The tests are designed to determine whether the output filter on class D amplifiers used in an active loudspeaker can be omitted without audible error occurring. The input signal of the amplifiers was limited to 0-3 kHz corresponding to that of a woofer unit. A listening panel of 7 persons was used in the tests. The tests which showed that no errors could be detected.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6241
Publication date
October 6, 2004
Session subject
Psychoacoustics, Perception, and Listening Tests
Affiliation
Ørsted-DTU, Technical University of Denmark, Lyngby, Denamrk ; Bang & Olufsen ICEPower a/s Gl, Lyngby, Denmark (See document for exact affiliation information.)
Type
Convention Paper