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  • Research Article
  • Open Access

Multiple-Description Multistage Vector Quantization

EURASIP Journal on Audio, Speech, and Music Processing20072007:067146

https://doi.org/10.1155/2007/67146

  • Received: 19 May 2007
  • Accepted: 31 October 2007
  • Published:

Abstract

Multistage vector quantization (MSVQ) is a technique for low complexity implementation of high-dimensional quantizers, which has found applications within speech, audio, and image coding. In this paper, a multiple-description MSVQ (MD-MSVQ) targeted for communication over packet-loss channels is proposed and investigated. An MD-MSVQ can be viewed as a generalization of a previously reported interleaving-based transmission scheme for multistage quantizers. An algorithm for optimizing the codebooks of an MD-MSVQ for a given packet-loss probability is suggested, and a practical example involving quantization of speech line spectral frequency (LSF) vectors is presented to demonstrate the potential advantage of MD-MSVQ over interleaving-based MSVQ as well as traditional MSVQ based on error concealment at the receiver.

Keywords

  • Acoustics
  • Vector Quantization
  • Transmission Scheme
  • Image Code
  • Error Concealment

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Authors’ Affiliations

(1)
Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, Manitoba, R3T 5V6, Canada

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