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Low delay audio coding incorporating psycho-acoustic information

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.

Authors: Martinez Munoz, Damian; Cruz Roldan, Fernando; Lopez-Ferreras, Francisco; Zurera, Manuel
Affiliations: 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.)
AES Convention:110 (May 2001) Paper Number:5299 Import into BibTeX
Subject:Low-Bit Rate Audio Coding

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E-Library Location: (CD aes18)   /pp2001/pp0105/110058.pdf

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