Acoustic Coupler Effects on Speech Audiometric Scores using a CROS Hearing Aid A CROS hearing aid was utilized with four different acoustic couplers to obtain spondee thresholds and speech discrimination scores from three groups of hearing-impaired subjects. Couplers employed were conventional and modified types (vented, open, and crimped polyethylene tubing). Results indicated that the conductives obtained better mean aided spondee thresholds with ... Research Article
Research Article  |   March 01, 1970
Acoustic Coupler Effects on Speech Audiometric Scores using a CROS Hearing Aid
 
Author Affiliations & Notes
  • Albert J. Jetty
    Western Michigan University, Kalamazoo, Michigan
  • William F. Rintelmann
    Michigan State University, East Lansing, Michigan
Article Information
Research Articles
Research Article   |   March 01, 1970
Acoustic Coupler Effects on Speech Audiometric Scores using a CROS Hearing Aid
Journal of Speech, Language, and Hearing Research, March 1970, Vol. 13, 101-114. doi:10.1044/jshr.1301.101
History: Received December 10, 1968
 
Journal of Speech, Language, and Hearing Research, March 1970, Vol. 13, 101-114. doi:10.1044/jshr.1301.101
History: Received December 10, 1968

A CROS hearing aid was utilized with four different acoustic couplers to obtain spondee thresholds and speech discrimination scores from three groups of hearing-impaired subjects. Couplers employed were conventional and modified types (vented, open, and crimped polyethylene tubing). Results indicated that the conductives obtained better mean aided spondee thresholds with the conventional earmold than with the modified acoustic couplers, whereas speech discrimination scores showed essentially no intercoupler differences. The mean aided spondee thresholds of the sensorineural group with a precipitous high-frequency drop were essentially the same under all coupling conditions, whereas discrimination was markedly improved with the modified couplers as opposed to the conventional earmold. The sensorineural group with gradually sloping audiometric configurations obtained better aided spondee thresholds with the conventional earmold, whereas discrimination was improved with the modified couplers.

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