DocumentCode :
1749618
Title :
Pole zero estimation from speech signals by an iterative procedure
Author :
Schnell, K. ; Lacroix, A.
Author_Institution :
Inst. fur Angewandte Phys., Johann Wolfgang Goethe Univ., Frankfurt, Germany
Volume :
1
fYear :
2001
fDate :
2001
Firstpage :
109
Abstract :
An iterative procedure is discussed to estimate poles and zeros of a rational transfer function from speech signals, which takes advantage of the individual solutions of AR and MA processes. Besides speech, analyses of test signals are also carried out, which lead to optimal results. In contrast to Prony´s and related methods, the algorithm doesn´t presuppose a pair of an input and output signal. The proposed procedure is specialised for the analysis of periodic signals, though it can be applied to nonperiodic signals, too. The algorithm combines two known partial solutions in an iterative way. The estimation of an all-pole model is obtained by the Burg method and the estimation of zeros by using the inverted signal in the spectral domain. It can be shown that the power spectrum of analyzed speech periods can be better modelled by poles and zeros especially with respect to the gaps in the spectrum
Keywords :
autoregressive moving average processes; iterative methods; poles and zeros; spectral-domain analysis; speech processing; transfer functions; AR processes; Burg method; MA processes; all-pole model; analyzed speech periods; inverted signal; iterative procedure; nonperiodic signals; partial solutions; periodic signals; pole zero estimation; poles and zeros; power spectrum; rational transfer function; spectral domain; speech signals; Iterative algorithms; Poles and zeros; Predictive models; Recursive estimation; Signal analysis; Signal processing; Speech analysis; Speech processing; Testing; Transfer functions;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
ISSN :
1520-6149
Print_ISBN :
0-7803-7041-4
Type :
conf
DOI :
10.1109/ICASSP.2001.940779
Filename :
940779
Link To Document :
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