Pure-Tone Octave Masking in Listeners with Sensorineural Hearing Loss Pure-tone octave masking was investigated in 14 listeners with sensorineural hearing loss to examine the hypothesis that the sensorineural ear introduces abnormal harmonic distortion. Thresholds for a test signal at f2, masked by a masking signal at f1, (where f2 = 2f1) were obtained as a function of the level ... Research Article
Research Article  |   June 01, 1974
Pure-Tone Octave Masking in Listeners with Sensorineural Hearing Loss
 
Author Affiliations & Notes
  • David A. Nelson
    University of Pittsburgh, Pittsburgh, Pennsylvania
  • Robert C. Bilger
    University of Pittsburgh, Pittsburgh, Pennsylvania
Article Information
Research Articles
Research Article   |   June 01, 1974
Pure-Tone Octave Masking in Listeners with Sensorineural Hearing Loss
Journal of Speech, Language, and Hearing Research, June 1974, Vol. 17, 252-269. doi:10.1044/jshr.1702.252
History: Received August 1, 1972 , Accepted January 20, 1974
 
Journal of Speech, Language, and Hearing Research, June 1974, Vol. 17, 252-269. doi:10.1044/jshr.1702.252
History: Received August 1, 1972; Accepted January 20, 1974

Pure-tone octave masking was investigated in 14 listeners with sensorineural hearing loss to examine the hypothesis that the sensorineural ear introduces abnormal harmonic distortion. Thresholds for a test signal at f2, masked by a masking signal at f1, (where f2 = 2f1) were obtained as a function of the level of the f1 masker for four different f1 frequencies (250, 500, 1000, and 2000 Hz) and two different phase relations between the f1 and f2 signals (90° and 270°). Analysis of the data in terms of the absolute level of the f2 test signal at masked threshold vs the absolute level of the f1 masking signal leads to the conclusion that these pathological ears do not perform differently from normal ears, except along the dimension of hearing loss. That is, their hearing losses do not add significant distortion to the acoustic signal. Analysis of the data in terms of the sensation level of the f2 test signal at masked threshold leads to the specious conclusion that the sensorineural ear introduces abnormal distortion.

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