Title :
Nonlinear multiplicative cepstral analysis for pitch extraction in speech
Author :
Hodgson, L. ; Jernigan, M.E. ; Wills, B.L.
Author_Institution :
Dept. of Syst. Design Eng., Waterloo Univ., Ont., Canada
Abstract :
A nonlinear speech model motivated by some previously published observations on the nonlinear effects of frequency doubling and halving is presented, and it is demonstrated how this nonlinear model offers an improvement in capital pitch extraction for noisy sustained vowel sound waveforms. This improvement is a result of the nonlinear model producing additional harmonics in the spectrum which can then be extracted in the nonlinear multiplicative cepstral domain
Keywords :
spectral analysis; speech analysis and processing; capital pitch extraction; frequency doubling; frequency halving; harmonics; noisy sustained vowel sound waveforms; nonlinear effects; nonlinear speech model; pitch extraction; Acoustic noise; Acoustic pulses; Cepstral analysis; Ear; Fluid flow measurement; Frequency; Human voice; Mouth; Nonlinear filters; Speech; Speech analysis; Speech synthesis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115616
