Abstract
This study examined airflow, volume, and durational characteristics of speech produced by hearing-impaired subjects using a face-mask-pneumotachometer-pressure-transducer system. Results of oral reading of a standard passage indicated that, in comparison to the normal-hearing subjects, the speech respiration of the hearing-impaired was characterized by 1) high air consumption manifested as high air expenditure per syllable, high average expiratory airflow rates, and high peak-airflow rates; 2) frequent inspirations; 3) inspirations at linguistically inappropriate places; 4) short duration of expiration; and 5) large individual differences. These characteristics were especially prominent among the more severely hearing-impaired individuals. Correlational analysis revealed that more frequent inspirations were associated with poorer overall speech proficiency while high air consumption was closely related to a breathy voice quality.
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