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ERIC Number: EJ909545
Record Type: Journal
Publication Date: 2010-Dec
Pages: 11
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-1092-4388
Measuring the Effects of Reverberation and Noise on Sentence Intelligibility for Hearing-Impaired Listeners
George, Erwin L. J.; Goverts, S. Theo; Festen, Joost M.; Houtgast, Tammo
Journal of Speech, Language, and Hearing Research, v53 n6 p1429-1439 Dec 2010
Purpose: The Speech Transmission Index (STI; Houtgast, Steeneken, & Plomp, 1980; Steeneken & Houtgast, 1980) is commonly used to quantify the adverse effects of reverberation and stationary noise on speech intelligibility for normal-hearing listeners. Duquesnoy and Plomp (1980) showed that the STI can be applied for presbycusic listeners, relating speech reception thresholds (SRTs) in various reverberant conditions to a fixed, subject-dependent STI value. The current study aims at extending their results to a wider range of hearing-impaired listeners. Method: A reverberant analogue of the SRT is presented--the speech reception reverberation threshold (SRRT)--which determines the amount of reverberation that a listener can sustain to understand 50% of the presented sentences. SRTs are performed and evaluated in terms of STI for 5 normal-hearing participants and 36 randomly selected hearing-impaired participants. Results: Results show that differences in STI between reverberant and noisy conditions are only small, equivalent to a change in speech-to-noise ratio less than 1.3 dB. Conclusion: The STI appears to be a convenient, single number to quantify speech reception of hearing-impaired listeners in noise and/or reverberation, regardless of the nature of the hearing loss. In future research, the SRRT may be applied to further investigate the supposed importance of cognitive processing in reverberant listening conditions.
American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://jslhr.asha.org
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A