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Convention Paper

Digital-Driven Piezoelectric Speaker using Multi-Bit Delta-Sigma Modulation

Authors: Ogata, Katsuya; Soga, Tsuyoshi; Ueno, Hajime; Yasuda, Akira

AES Convention 121 · Paper 6943 · October 2006

Abstract

Although a substantial quantity of music data is stored as digital information, as in the case of CDs and MDs, an analog drive is still the main component of a loudspeaker. If the speaker can be driven digitally, it becomes possible to perform all processes from the input to the output digitally. As a result, the analog power amplifier and some other components become unnecessary and a small, light, and high-quality speaker can be achieved. In this paper, we propose a digital-driven piezoelectric speaker employing multi-bit delta-sigma modulation.

Details

Published in
AES Convention 121
AES Convention
121
Paper number
6943
Publication date
October 6, 2006
Session subject
Loudspeakers
Affiliation
Hosei University (See document for exact affiliation information.)
Type
Convention Paper