Welcome to the world of Scilab Speech

frequency analysis

1．lp_covariance(wavefile, window_type)

　　 ----linear prediction spectral analysis by using convariance method.

2．lp_covariance_m(wavefile, window_type)

　　 ----linear prediction spectral analysis by using modified convariance method.

3．lp_burg(wavefile, window_type)

　　 ----linear prediction spectral analysis by using burg algorithm.

4．lp_rmle(wavefile, window_type)

　　 ----linear prediction spectral analysis by using recursive maximum likelihood algorithm.

5．lp_plp(wavefile, window_type)

　　 ----linear prediction spectral analysis by using perceptual linear prediction method.

6．spec_fft(wavefile, window_type)

　　----estimating the power spectrum by using standard fast Fourier transform (FFT) techniques.

7．spec_perio(wavefile, window_type)

　　----the periodogram spectral estimator.