Speech Prosody 2004

Nara, Japan
March 23-26, 2004

Development and Evaluation of Pitch Adjustable Electrolarynx

Yoshinobu Kikuchi (1), Hideki Kasuya (2)

(1) Department of Radiological Science, International University of Health and Welfare, Japan
(2) Department of Electrical and Electronic Engineering, Utsunomiya University, Japan

We constructed a prototype of an electrolarynx whereof the fundamental frequency (hereafter pitch for simplicity) can be adjusted by an up-down or left-right finger movement, and carried out some comparison experiments on its operation. As a result, we found that the left-right finger movement could operate the device more simply and in a shorter time. In both cases, in the prototype electrolarynx, pitch adjustment and ON/OFF control of the vibration could be made independently, and utterances could be started and finished with a desired pitch. Hence, we found that an initial-accented pitch pattern and utterances with rising pitch at the end of a phrase such as a question phrase, were easily produced.

Full Paper

Bibliographic reference.  Kikuchi, Yoshinobu / Kasuya, Hideki (2004): "Development and evaluation of pitch adjustable electrolarynx", In SP-2004, 761-764.