Parallel Root-Finding Method for LPC Analysis of Speech
نویسندگان
چکیده
This paper describes a selective root finding method for polynomials based in Complex Analysis results. It can find the poles of the speech signal LPC model that are close to the unit circle, without wasting computations with the others, lesser significant ones. This feature makes our method faster than the standard ones for speech analysis. These poles are in better correspondence with the formants than the local maxima of the spectral envelope. They can be used for formant tracking on real time. Experimental results are showed.
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