Speech Understanding in Noise by Patients With Cochlear Implants Using a Monaural Adaptive Beamformer Purpose The aim of this experiment was to compare, for patients with cochlear implants (CIs), the improvement for speech understanding in noise provided by a monaural adaptive beamformer and for two interventions that produced bilateral input (i.e., bilateral CIs and hearing preservation [HP] surgery). Method Speech understanding scores ... Research Note
Research Note  |   August 16, 2017
Speech Understanding in Noise by Patients With Cochlear Implants Using a Monaural Adaptive Beamformer
 
Author Affiliations & Notes
  • Michael F. Dorman
    Arizona State University, Tempe
  • Sarah Natale
    Arizona State University, Tempe
  • Anthony Spahr
    Arizona State University, Tempe
  • Erin Castioni
    Advanced Bionics, Valencia, CA
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Michael Dorman: mdorman@asu.edu
  • Editor: Frederick Gallun
    Editor: Frederick Gallun×
  • Associate Editor: Richard Dowell
    Associate Editor: Richard Dowell×
Article Information
Hearing & Speech Perception / Acoustics / Hearing Aids, Cochlear Implants & Assistive Technology / Hearing / Research Note
Research Note   |   August 16, 2017
Speech Understanding in Noise by Patients With Cochlear Implants Using a Monaural Adaptive Beamformer
Journal of Speech, Language, and Hearing Research, August 2017, Vol. 60, 2360-2363. doi:10.1044/2017_JSLHR-H-16-0312
History: Received August 2, 2016 , Revised December 30, 2016 , Accepted February 20, 2017
 
Journal of Speech, Language, and Hearing Research, August 2017, Vol. 60, 2360-2363. doi:10.1044/2017_JSLHR-H-16-0312
History: Received August 2, 2016; Revised December 30, 2016; Accepted February 20, 2017

Purpose The aim of this experiment was to compare, for patients with cochlear implants (CIs), the improvement for speech understanding in noise provided by a monaural adaptive beamformer and for two interventions that produced bilateral input (i.e., bilateral CIs and hearing preservation [HP] surgery).

Method Speech understanding scores for sentences were obtained for 10 listeners fit with a single CI. The listeners were tested with and without beamformer activated in a “cocktail party” environment with spatially separated target and maskers. Data for 10 listeners with bilateral CIs and 8 listeners with HP CIs were taken from Loiselle, Dorman, Yost, Cook, and Gifford (2016), who used the same test protocol.

Results The use of the beamformer resulted in a 31 percentage point improvement in performance; in bilateral CIs, an 18 percentage point improvement; and in HP CIs, a 20 percentage point improvement.

Conclusion A monaural adaptive beamformer can produce an improvement in speech understanding in a complex noise environment that is equal to, or greater than, the improvement produced by bilateral CIs and HP surgery.

Acknowledgments
This work was supported by a grant from Advanced Bionics Corporation and by the National Institute of Health Grant R01 DC 010821 to MFD. The experiment described in the Method section was reviewed and approved by the Institutional Review Board at Arizona State University
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