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Convention Paper

Low delay audio coding incorporating psycho-acoustic information

Authors: Martinez Munoz, Damian; Cruz Roldan, Fernando; Lopez-Ferreras, Francisco; Zurera, Manuel

AES Convention 110 · Paper 5299 · May 2001

Abstract

This paper deals with the design and implementation of a scheme for CD quality audio coding that introduces a delay as low as 6 ms., and provides near transparent coding. It is implemented with a uniform filter bank that decomposes the audio signal in thirty-two bands. For such a delay, the filters in the filter bank must have a short impulse response and so, the filters non-ideal frequency responses should be taken into account. Near transparent coding is achieved at 96kbps, that is a very good result for such a low delay.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5299
Publication date
May 6, 2001
Session subject
Low-Bit Rate Audio Coding
Affiliation
Dpto. de Teoría de la Señal y Comunicaciones, Escuela Politécnica, Universidad de Alcalá Campus Universitario, Madrid, Spain ; Escuela Universitaria Politécnica, Universidad de Jaén, Linares (Jaén), Spain (See document for exact affiliation information.)
Type
Convention Paper