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Multiple-Description Multistage Vector Quantization
EURASIP Journal on Audio, Speech, and Music Processing volume 2007, Article number: 067146 (2007)
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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Yahampath, P. Multiple-Description Multistage Vector Quantization. J AUDIO SPEECH MUSIC PROC. 2007, 067146 (2007). https://doi.org/10.1155/2007/67146
- Vector Quantization
- Transmission Scheme
- Image Code
- Error Concealment