Method for linear predictive analysis of an audiofrequency signa

Details Method for linear predictive analysis of an audiofrequency signa Method for linear predictive analysis of an audiofrequency signa

1996-12-11

1998-07-28

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704220, 704262, 704205, 704222, 704223, G10L 302, G10L 500

Patent

active

057873909

ABSTRACT:
The linear predictive analysis method is used in order to determine the spectral parameters representing the spectral envelope of the audiofrequency signal. This method comprises q successive prediction stages, q being an integer greater than 1. At each prediction stage p(1.ltoreq.p.ltoreq.q), parameters are determined representing a predefined number Mp of linear prediction coefficients a.sub.1.sup.p, . . . , a.sub.Mp.sup.p of an input signal of the said stage. The audiofrequency signal to be analysed constitutes the input signal of the first stage. The input signal of a stage p+1 consists of the input signal of the stage p filtered with a filter with transfer function ##EQU1##

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