Title :
Pitch estimation using a modulation model of speech
Author_Institution :
Dept. of Eng., Purdue Univ. Calumet, Hammond, IN, USA
Abstract :
This paper presents a method of estimating pitch frequencies using a modulation model of speech. Both the amplitude envelope and instantaneous frequency deviation due to modulations present in speech carry fundamental frequency information. It is shown that demodulation of speech around any arbitrary frequency or in the vicinity of a formant brings out well resolved F0 in both the envelope and the instantaneous frequency. Values of F0 estimated from the modulation model for utterances under normal and stressed conditions were found consistent with those determined from a direct vocal tract model
Keywords :
demodulation; frequency estimation; modulation; speech processing; amplitude envelope; formant; fundamental frequency information; instantaneous frequency; instantaneous frequency deviation; normal conditions; pitch frequency estimation; speech demodulation; speech modulation model; stressed conditions; vocal tract model; Amplitude modulation; Demodulation; Electronic mail; Frequency estimation; Frequency modulation; Resonance; Speech analysis; Speech coding; Speech processing; Sympathetic nervous system;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891629
