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Multiple-Description Multistage Vector Quantization

EURASIP Journal on Audio, Speech, and Music Processing volume 2007, Article number: 067146 (2007) Cite this article

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.

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Authors and Affiliations

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

    Pradeepa Yahampath

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  1. Pradeepa Yahampath
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Correspondence to Pradeepa Yahampath.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Yahampath, P. Multiple-Description Multistage Vector Quantization. J AUDIO SPEECH MUSIC PROC. 2007, 067146 (2007). https://doi.org/10.1155/2007/67146

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