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function list--WRLS-VFF analysis

wrls

　　 ----weighted recursive least squared, variable forgetting factor analysis of a speech signal.

Calling Sequence:

　　wrls(wavefile);

　　wrls(wavefile, window_type);

Parameters:

　　wavefile: wave file. Vector or matrix.

　　window_type: desired window type. Interger.

Description:

This function implenment a closed phase adaptive WRLS-VFF algorithm.

Examples:

x=wavread('d:\test.wav');

y=wrls(x);

y=wrls(x, 4);

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