EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology

Aalborg, Denmark
September 3-7, 2001


On Differential Limen of Word-based Local SpeechRate Variation in Japanese Expressed by Duration Ratio

Makoto Hiroshige, Kenji Araki, Koji Tochinai

Hokkaido University, Sapporo, Japan

Fundamental studies about differential limen (DL) for word-based speech rate variations in Japanese are described. In our previous study, the DLs are expressed by subtractive difference of mora duration. In this report, however, to fit the expression for various global speech rate, the DLs are expressed by variation ratio of mora duration. We carry out auditory tests with stimuli made by equally lengthening or shortening a duration of a word in a sentence. The subjects' focus of attention is diffused to get DLs that are used in the normal natural conversations. The obtained DLs are approximately 0.85 for acceleration and 1.18 for deceleration in variation ratio of mora duration.

Full Paper

Bibliographic reference.  Hiroshige, Makoto / Araki, Kenji / Tochinai, Koji (2001): "On differential limen of word-based local speechrate variation in Japanese expressed by duration ratio", In EUROSPEECH-2001, 375-378.