Evaluation of a Pinna Compensation Algorithm for Sound Localization and Speech Perception in Noise PurposeThis study was designed to evaluate the effect of a pinna compensation (PC) algorithm on localization performance in the horizontal plane and speech intelligibility in noise.MethodNine and 18 experienced hearing aid users with bilaterally symmetrical sensorineural hearing loss participated in the localization study and the speech-in-noise study, respectively. Performance was ... Research Article
Research Article  |   June 01, 2013
Evaluation of a Pinna Compensation Algorithm for Sound Localization and Speech Perception in Noise
 
Author Affiliations & Notes
  • Francis Kuk
    Widex, Lisle, IL
  • Petri Korhonen
    Widex, Lisle, IL
  • Chi Lau
    Widex, Lisle, IL
  • Denise Keenan
    Widex, Lisle, IL
  • Magnus Norgaard
    Widex, Lisle, IL
  • Correspondence to Francis Kuk: fkuk@widexusa.com
  • Editor: Larry Humes
    Editor: Larry Humes×
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Research Article
Research Article   |   June 01, 2013
Evaluation of a Pinna Compensation Algorithm for Sound Localization and Speech Perception in Noise
American Journal of Audiology, June 2013, Vol. 22, 84-93. doi:10.1044/1059-0889(2012/12-0043)
History: Received July 24, 2012 , Revised September 25, 2012 , Accepted October 8, 2012
 
American Journal of Audiology, June 2013, Vol. 22, 84-93. doi:10.1044/1059-0889(2012/12-0043)
History: Received July 24, 2012; Revised September 25, 2012; Accepted October 8, 2012
Web of Science® Times Cited: 6

PurposeThis study was designed to evaluate the effect of a pinna compensation (PC) algorithm on localization performance in the horizontal plane and speech intelligibility in noise.

MethodNine and 18 experienced hearing aid users with bilaterally symmetrical sensorineural hearing loss participated in the localization study and the speech-in-noise study, respectively. Performance was evaluated unaided, aided with a behind-the-ear (BTE) hearing aid with an omnidirectional microphone (Omni), and aided with the same hearing aid with the PC algorithm (Omni+PC). Localization performance was measured using 12 loudspeakers spaced 30° apart on a horizontal plane. Speech-in-noise performance was measured with speech presented from 0° or 180°. A single-blinded, repeated measures design was used.

ResultsSignificant improvement in localization accuracy was found when comparing the Omni+PC condition to the Omni condition. Also, the Omni+PC condition improved the signal-to-noise ratio by 2.4 dB when compared to the Omni condition when speech was presented from the front in a diffuse noise background.

ConclusionUse of the PC algorithm improved localization on the horizontal plane and speech-in-noise performance. These results support use of the PC algorithm in BTE hearing aid fittings.

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