Algorithm of piecewise linear predictive coding for speech formant frequency estimation
Wan Mao-wen · Computer Engineering and Applications Journal · 2009
The speech formant frequency estimation is done based on piecewise linear predictive coding.Multi-channel filter banks are applied to decomposing the speech spectrum.Suitable inverse filters are chose to approach the STFT of different spectral bands.The speech formant frequency is obtained by the inverse filters later.The results show that,compared with the conventional formant estimation methods,the method based on piecewise linear predictive coding improves the resolution and veracity of the speech formant frequency estimation,and is not sensitive to noise.