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

Aalborg, Denmark
September 3-7, 2001


Detecting Japanese Local Speech Rate Deceleration in Spontaneous Conversational Speech Using a Variable Threshold

Keiichi Takamaru, Makoto Hiroshige, Kenji Araki, Koji Tochinai

Hokkaido University, Japan

The variable threshold(VT), which detects the speech rate deceleration, is proposed. The VT varies dynamically depending upon the duration of previous mora in the utterance. The VT should not change rapidly because listener cannot perceive small variations of mora duration. Thus, a set of functions with time constants which decide response speed of the VT is introduced. We apply the VT to six sentences of spontaneous conversational speech. The auditory test of detecting local speech rate deceleration is carried out for the evaluation. The possibility of detecting the local speech rate deceleration by the VT is indicated.

Full Paper

Bibliographic reference.  Takamaru, Keiichi / Hiroshige, Makoto / Araki, Kenji / Tochinai, Koji (2001): "Detecting Japanese local speech rate deceleration in spontaneous conversational speech using a variable threshold", In EUROSPEECH-2001, 935-938.