DocumentCode :
3448692
Title :
Effective estimation of the harmonic component of speech and speech-like signals
Author :
Malliopoulos, C. ; Bakamidis, S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens
Volume :
3
fYear :
1999
fDate :
1999
Firstpage :
1561
Abstract :
This paper proposes a new method for estimating the harmonic component of speech and speech-like signals. This class of signals is characterized by time-varying, wide-band spectra. Inherent in all calculations is therefore the assumption that the processing frame must be relatively small. Under this condition the Discrete Fourier Transform fails to provide accurate estimations. The method we propose consists of the parametric estimation of signal dynamics and a sophisticated spectral selection method which make the algorithm perform accurately with short frames. Moreover, contrary to existing Fourier methods, the harmonic estimates are not constrained to be multiples of the reciprocal of frame length, the resolution is therefore theoretically infinite. After the fundamental frequency has been estimated, the harmonic content can be easily reconstructed by fitting the estimates to the observations
Keywords :
frequency estimation; harmonic analysis; prediction theory; spectral analysis; speech processing; Discrete Fourier Transform; complexity; fitting; harmonic component; indirect harmonic match; linear predictor modelling; maximum entropy method; parametric estimation; processing frame; signal dynamics; spectral selection; speech; time-varying, wide-band spectra; Autocorrelation; Fourier transforms; Frequency estimation; Human voice; Natural languages; Predictive models; Signal processing; Signal resolution; Speech processing; Wideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
Type :
conf
DOI :
10.1109/ICECS.1999.814469
Filename :
814469
Link To Document :
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