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Convention Paper

Digital Loudspeaker Arrays Driven by 1-bit Signals

Authors: Tatlas, Nicolas-Alexander; Mourjopoulos, John N.

AES Convention 116 · Paper 6036 · May 2004

Abstract

Loudspeaker Arrays driven by digital bitstreams are direct digital-signal to acoustic transducers, usually comprising of a digital signal processing module driving actuators. Current research efforts are focusing on topologies directly driven by multi-bit digital bitstreams. In this work, the above investigations are extended to the case of using 1-bit signals such as Sigma-Delta for driving such topologies, using time and frequency domain analysis. Simulation results will be presented for idealized actuators. Finally, an optimized architecture for such a loudspeaker will be proposed, based on this analysis.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6036
Publication date
May 6, 2004
Session subject
Signal Processing; Audio in Broadcasting
Affiliation
Audiogroup, Electrical Engineering and Computer Engineering Department, University of Patras, Patras, Greece (See document for exact affiliation information.)
Type
Convention Paper