DocumentCode :
3027933
Title :
Accurate pitch estimation using digital filters
Author :
Lacroix, A. ; Höptner, N.
Author_Institution :
Technische Hochschule, Darmstadt, Fed. R. of Germany
Volume :
2
fYear :
1977
fDate :
28246
Firstpage :
319
Lastpage :
322
Abstract :
A new concept for the estimation of the pitch of speech signals is presented which is based on linear digital filtering. The digital filter consists basically of a multiple integrating filter combined with a notch filter at zero-frequency to improve the unfavourable transient behaviour of the integrating filter. A usual peak picker completes the configuration. The accuracy of the propsed pitch estimator is investigated theoretically; analysing a synthetic complex speech-like signal with prescribed pitch, the theoretical accuracy statements are controlled. The application of the proposed method is demonstrated by the analysis of natural speech signals.
Keywords :
Attenuation; Deconvolution; Digital filters; Estimation theory; Filtering; Frequency estimation; Frequency response; Nonlinear filters; Speech analysis; Vocoders;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '77.
Type :
conf
DOI :
10.1109/ICASSP.1977.1170239
Filename :
1170239
Link To Document :
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