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ERIC Number: EJ930646
Record Type: Journal
Publication Date: 2010
Pages: 24
Abstractor: As Provided
Reference Count: 45
ISSN: ISSN-0042-8639
A Pilot Investigation regarding Speech-Recognition Performance in Noise for Adults with Hearing Loss in the FM+HA Listening Condition
Lewis, M. Samantha; Gallun, Frederick J.; Gordon, Jane; Lilly, David J.; Crandell, Carl
Volta Review, v110 n1 p31-54 Spr 2010
While the concurrent use of the hearing aid (HA) microphone with frequency modulation (FM) technology can decrease speech-recognition performance, the FM+HA condition is still an important setting for users of both HA and FM technology. The primary goal of this investigation was to evaluate the effect of attenuating HA gain in the FM+HA listening condition on the signal-to-noise ratio for 50% sentence recognition in two situations: (1) when speech was presented to the FM transmitter microphone and (2) when speech was presented to the HA microphone. A second goal was to determine whether measures based on the Articulation Index (AI) could be used to predict speech-recognition performance. The best speech-recognition performance for the first situation occurred when the HA gain was attenuated by 20 decibels (dB), while the best performance for the second situation occurred when there was 0 dB of attenuation. The AI measures were directly related to speech-recognition performance. (Contains 2 tables, 6 figures, and 4 footnotes.)
Alexander Graham Bell Association for the Deaf and Hard of Hearing. 3417 Volta Place NW, Washington, DC 20007. Tel: 202-337-5220; Fax: 202-337-8314; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Oregon