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Convention Paper

Design and Implementation of a Commodity Audio System

Authors: Muheim, Men

AES Convention 116 · Paper 6023 · May 2004

Abstract

This paper introduces a Ph.D. thesis that has been recently presented at the Swiss Federal Institute of Technology (http://www.ife.ee.ethz.ch/~men/phd.shtml). The thesis envisions a distributed audio system based on commodity computer components. It examines to what extent the "real-time" attributes of mainstream operating systems lead to audio dropouts and therefore to quality loss. It studies extrapolation methods to prevent loss of quality and shows that quality improvement to a non-annoying level is possible. A synchronization mechanism is implemented on application layer in order to facilitate the use of Ethernet as the only communication network. Thereby the thesis shows that a synchronization accuracy of 11us between separated loudspeakers is feasible. Furthermore the thesis proposes a novel software framework, which makes the development of distributed audio services easier.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6023
Publication date
May 6, 2004
Session subject
Audio in Computers; Audio Video Systems
Affiliation
Electronics Laboratory, Swiss Federal Institute of Technology, Zurich, Switzerland (See document for exact affiliation information.)
Type
Convention Paper