Perception of Consonants in Reverberation and Noise by Adults Fitted With Bimodal Devices Purpose The purpose of this study was to evaluate the contribution of a contralateral hearing aid to the perception of consonants, in terms of voicing, manner, and place-of-articulation cues in reverberation and noise by adult cochlear implantees aided by bimodal fittings. Method Eight postlingually deafened adult cochlear implant (CI) ... Research Article
Research Article  |   August 01, 2014
Perception of Consonants in Reverberation and Noise by Adults Fitted With Bimodal Devices
 
Author Affiliations & Notes
  • Michelle Mason
    University of Kansas, Lawrence
  • Kostas Kokkinakis
    University of Kansas, Lawrence
  • 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 Kostas Kokkinakis: kokkinak@ku.edu
  • Editor: Craig Champlin
    Editor: Craig Champlin×
  • Associate Editor: Pam Souza
    Associate Editor: Pam Souza×
Article Information
Hearing & Speech Perception / Acoustics / Hearing Aids, Cochlear Implants & Assistive Technology / Speech, Voice & Prosody / Hearing / Research Articles
Research Article   |   August 01, 2014
Perception of Consonants in Reverberation and Noise by Adults Fitted With Bimodal Devices
Journal of Speech, Language, and Hearing Research, August 2014, Vol. 57, 1512-1520. doi:10.1044/2014_JSLHR-H-13-0127
History: Received May 16, 2013 , Revised August 17, 2013 , Accepted November 13, 2013
 
Journal of Speech, Language, and Hearing Research, August 2014, Vol. 57, 1512-1520. doi:10.1044/2014_JSLHR-H-13-0127
History: Received May 16, 2013; Revised August 17, 2013; Accepted November 13, 2013
Web of Science® Times Cited: 3

Purpose The purpose of this study was to evaluate the contribution of a contralateral hearing aid to the perception of consonants, in terms of voicing, manner, and place-of-articulation cues in reverberation and noise by adult cochlear implantees aided by bimodal fittings.

Method Eight postlingually deafened adult cochlear implant (CI) listeners with a fully inserted CI in 1 ear and low-frequency hearing in the other ear were tested on consonant perception. They were presented with consonant stimuli processed in the following experimental conditions: 1 quiet condition, 2 different reverberation times (0.3 s and 1.0 s), and the combination of 2 reverberation times with a single signal-to-noise ratio (5 dB).

Results Consonant perception improved significantly when listening in combination with a contralateral hearing aid as opposed to listening with a CI alone in 0.3 s and 1.0 s of reverberation. Significantly higher scores were also noted when noise was added to 0.3 s of reverberation.

Conclusions A considerable benefit was noted from the additional acoustic information in conditions of reverberation and reverberation plus noise. The bimodal benefit observed was more pronounced for voicing and manner of articulation than for place of articulation.

Acknowledgments
This work was supported by National Institute on Deafness and Other Communication Disorders Grant R03 DC 00 8882 awarded to Kostas Kokkinakis. We thank the individuals who participated in this study.
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