Robust and accurate fundamental frequency estimation based on dominant harmonic components.
This paper presents a new method for robust and accurate fundamental frequency (F0) estimation in the presence of background noise and spectral distortion. Degree of dominance and dominance spectrum are defined based on instantaneous frequencies. The degree of dominance allows one to evaluate the magnitude of individual harmonic components of the speech signals relative to background noise while reducing the influence of spectral distortion. The fundamental frequency is more accurately estimated from reliable harmonic components which are easy to select given the dominance spectra. Experiments are performed using white and babble background noise with and without spectral distortion as produced by a SRAEN filter. The results show that the present method is better than previously reported methods in terms of both gross and fine F0 errors.
Nakatani
Tomohiro
T
NTT Communication Science Laboratories, NTT Corporation, Soraku-gun, Kyoto 619-0237, Japan. nak@cslab.kecl.ntt.co.jp
Irino
Toshio
T
D000328:Adult; D001288:Attention; D005260:Female; D006801:Humans; D008297:Male; D009622:Noise / Q000009:adverse effects*; D010469:Perceptual Distortion; D010700:Phonetics; D010897:Pitch Discrimination; D013018:Sound Spectrography; D013061:Speech Acoustics; D013063:Speech Discrimination Tests