RIS ID

7902

Publication Details

This article was published as: Lukasiak, J & Burnett, I, Scalable decomposition of speech waveforms, IEEE Workshop Proceedings on Speech Coding, 6-9 October 2002, 135-137. Copyright IEEE 2002.

Abstract

Decomposition of speech signals into periodic and noise components is widely used in speech coding to facilitate efficient compression. Existing decomposition schemes are too inflexible to model transient changes in the speech signal, require high delay or produce a large parameter set that is not scalable to low rates. This paper proposes a technique that requires only a single frame of speech and produces a scalable decomposition. The latter allows reconstruction accuracy to be varied according to the bit rate available.

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