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Journal of Automation and Information Sciences
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ISSN Druckformat: 1064-2315
ISSN Online: 2163-9337

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Journal of Automation and Information Sciences

DOI: 10.1615/JAutomatInfScien.v51.i2.40
pages 30-40

Methods for Calculating and Coding the Parameters of Autoregressive Speech Model when Developing the Vocoder Based on Fixed Point Signal Process

Vasiliy Yu. Semenov
Scientific and Production Enterprise "DELTA-SPE", Kiev


Consideration is given to calculating and coding the parameters of vocoders operating at speed of 1200 and 2400 bps. The efficient methods for calculating and coding the parameters of the autoregressive speech signal model such as line spectral frequencies and the pitch period are proposed. The works on computation optimization allowed a vocoder to be implemented in real time on the signal processor ADSP-2191.


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