Title :
Phase compensation in all-pole speech analysis
Author_Institution :
Div. of Inf. Theory, Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
General methods are discussed for estimating a phase model in the context of all-pole analysis of speech. An optimal estimator is presented for the case in which the phase model is a strict all-pass filter. It is shown that the solution to this estimation problem is very close to that obtained by established methods of linear prediction. As a complement, discrete Fourier transform methods for the phase modeling are briefly discussed and evaluated. Experience with the algorithms is presented, including results for applications to glottal-inverse filtering and speech coding
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; all-pass filter; all-pole analysis; discrete Fourier transform methods; glottal-inverse filtering; optimal estimator; phase compensation; speech analysis; speech coding; Covariance matrix; Delay; Equations; Filters; Frequency measurement; Iterative methods; Minimization methods; Speech analysis; Stability; Weight measurement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.196585
