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Conference Paper

Audio Decompression Usin 32-Bit CPU Versus Traditional DSP

Authors: Bringmann, Mark; Carpenter, Paul; Graley, John

AES Conference: UK 16th Conference: Silicon for Audio · Paper uk123 · April 2001

Abstract

The market predictions for digital audio players are extremely positive. The ability to compress audio data by a factor of 10: 1 or more whilst maintaining impressive sound quality has led to a revolution in the way content has become available. There has been an explosion of content on the Internet, new channels for commercial music distribution are opening up and new players with new form factors are appearing on the market. Traditionally a DSP processor may have been specified as an implementation platform for MP3 and other digital audio standards. However, an analysis of the key technical requirements for digital audio decoding, taking MP3 as an example, show that a programmable software solution mapped to a 32-bit RISC CPU has many advantages over a DSP based solution.

Details

Published in
AES Conference: UK 16th Conference: Silicon for Audio
Paper number
uk123
Publication date
April 6, 2001
Session subject
Silicon for Audio
Affiliation
ARM, Maidenhead, UK (See document for exact affiliation information.)
Type
Conference Paper