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Subband splitting, adaptive scalar prediction and vector quantization for speech coding

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Masgrau Gómez, Enrique JoséMés informació
Rodríguez Fonollosa, José AdriánMés informacióMés informacióMés informació
Mariño Acebal, José BernardoMés informacióMés informació
Document typeConference report
Defense date1988
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
This paper describes a new coding structure based on the combination of Vector Quantizati.on, Linear Prediction l)nd Subband Splitting that achieves high guality speech at rates below 10 Kbit/sec. In this scheme, a vector is formed with one sanple of the normalized prediction error of each band and then a vector quanti.zer is applied to it. This guantization of the prediction error a.llows to use scalar adaptive predictors while conserving the advantages of the vector guantization. The necessary noise shap~ for achjev:ing high subjective quality is obtained by the use of a Freguency-Weighted distance in thc vecto r guantizer
CitationMasgrau, E., Fonollosa, José A. R., Mariño, J.B. Subband splitting, adaptive scalar prediction and vector quantization for speech coding. A: European Signal Processing Conference. "Signal processing IV : theories and applications : proceedings of EUSIPCO-88, Fourth European Signal Processing Conference, Grenoble, France, September 5-8, 1988". Grenoble: 1988, p. 1035-1038. 
URIhttp://hdl.handle.net/2117/89167
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