Alan B. Bradley

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A dynamic programming-based optimization strategy for a temporal decomposition (TD) model of speech and its application to low-rate speech coding in storage and broadcasting is presented. In previous work with the spectral stability-based event localizing (SBEL) TD algorithm, the event localization was performed based on a spectral stability criterion.(More)
This paper investigates the potential for data rate reduction through the use of a phonetic se-gnentation criteria to identify spectral regions exhibiting slowly evolving features. A two dimensional discrete cosine transform (DCT) is then applied to the encoding of the segmented regions represented in this case by line spectral pair (LSP) filter parameters.(More)