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Convention Paper

Low Bit Rate Codecs for Audio Signals Implementation in Real Time

Authors: Brandenburg, Karlheinz; Kapust, R.; Seitzer, D.; Eberlein, E.; Gerhäuser, H.; Grill, B.

AES Convention 85 · Paper 2707 · November 1988

Abstract

Coding of audio signals at bit rates down to 64 kbit/sec can be implemented with the state of the art single-chip processors such as DSP32 or DSP56000. The benefits are small board size and high flexibility. A portable hardware will be presented that allows easy tuning of low bit-rate codecs and their evaluation based upon psychoacoustical criteria, by observing the noise to mask ratio (NMR). The architecture of ASICs can be derived by modifying these general-purpose signal processors.

Details

Published in
AES Convention 85
AES Convention
85
Paper number
2707
Publication date
November 6, 1988
Session subject
Recording
Affiliation
University of Erlangen, Erlangen, FRG ; University of Erlangen and Fraunhofer-Institut for Integrated Circuits, Erlangen, FRG ; Fraunhofer-Institut for Integrated Circuits, Erlangen, FRG (See document for exact affiliation information.)
Type
Convention Paper