First International Conference on Spoken Language Processing (ICSLP 90)

Kobe, Japan
November 18-22, 1990

Effects of Temporal Factors on the Speech Perception of the Hearing Impaired

Akiko Hayashi (1), Satoshi Imaizumi (1), Takehiko Harada (1), Hideaki Seki (2), Hiroshi Hosoi (3)

(1) Faculty of Medicine, University of Tokyo, Tokyo, Japan
(2) Chiba Institute of Technology, Narashino, Chiba, Japan
(3) School of Medicine, Kinki University, Osaka-sayama, Osaka, Japan

The width of ear's temporal window and the values of VOT at the phoneme boundary between voiced versus unvoiced consonants in CV (/ba-pa/) and VCV (/aba-apa/) stimuli were measured for 7 normals and 6 sensori-neural hearing-impaired subjects. The measurements were made at the most comfortable level for each of the hearing-impaired subject, and at three levels, 40, 60 and 80 dB SPL for the normal hearing subjects. The temporal window was generally wider for the hearing-impaired subjects than for the normal subjects. The VOT phoneme boundary was longer for the VCV than for the CV contex-ts. The VOT phoneme boundary in the VCV context tended to correlate to the width of the temporal window. Based on these results, we concluded that the poor temporal resolution of the ear affects to some extent the VOT perception for the hearing-impaired subjects.

Full Paper

Bibliographic reference.  Hayashi, Akiko / Imaizumi, Satoshi / Harada, Takehiko / Seki, Hideaki / Hosoi, Hiroshi (1990): "Effects of temporal factors on the speech perception of the hearing impaired", In ICSLP-1990, 593-596.