5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

Fundamental Frequency Fluctuation in Continuous Vowel Utterance and its Perception

Masato Akagi, Mamoru Iwaki, Tomoya Minakawa

Japan Advanced Institute of Science and Technology, Japan

This paper reports how rapid fluctuations of fundamental frequencies in continuously uttered vowels influence vowel quality and shows that vowel qualities with various fundamental frequency fluctuations can be discriminated perceptually. For this purpose, electroglottographs (EGGs) of vowels uttered by nine males were obtained using Laryngograph, and fundamental frequencies with rapid fluctuations were estimated from them. Analyzing forty-five estimated fundamental frequencies, they can be classified into four groups. Moreover, psychoacoustic experiments, with five subjects, evaluating voice quality by multidimensional scaling (MDS) showed that voice quality of the synthesized speech using the fundamental frequencies of the groups was completely discriminable and there was a distinctive frequency band of fundamental frequency fluctuation for specifying each group perceptually.

Full Paper

Bibliographic reference.  Akagi, Masato / Iwaki, Mamoru / Minakawa, Tomoya (1998): "Fundamental frequency fluctuation in continuous vowel utterance and its perception", In ICSLP-1998, paper 0027.