Interaural Intensity Difference Limen Three kinds of intensity-difference thresholds were compared for the purpose of determining interaural-binaural and interaural-monaural relations. Five subjects were tested at 250, 2000, and 6000 Hz, using a variation of the Békésy technique. Response to 27 interaural intensity combinations were measured at each frequency. Monaural and binaural conditions were included. ... Research Article
Research Article  |   December 01, 1967
Interaural Intensity Difference Limen
 
Author Affiliations & Notes
  • Roy C. Rowland, Jr.
    Oklahoma Department of Public Welfare, Oklahoma City, Oklahoma
  • Jerry V. Tobias
    Civil Aeromedical Institute, Oklahoma City, Oklahoma
Article Information
Research Articles
Research Article   |   December 01, 1967
Interaural Intensity Difference Limen
Journal of Speech, Language, and Hearing Research, December 1967, Vol. 10, 745-756. doi:10.1044/jshr.1004.745
History: Received April 1, 1967
 
Journal of Speech, Language, and Hearing Research, December 1967, Vol. 10, 745-756. doi:10.1044/jshr.1004.745
History: Received April 1, 1967

Three kinds of intensity-difference thresholds were compared for the purpose of determining interaural-binaural and interaural-monaural relations. Five subjects were tested at 250, 2000, and 6000 Hz, using a variation of the Békésy technique. Response to 27 interaural intensity combinations were measured at each frequency. Monaural and binaural conditions were included. Each of 24 combinations was measured under 0° and 180° interaural phase conditions, and all were measured at 50, 35, and 20 dB HL (ISO). Results indicate that interaural-difference thresholds decrease as a function of level, as might be predicted. These thresholds vary as a function of the frequency and apparent azimuth of the fused tone, but are relatively insensitive to variations in interaural phase. Interaural intensity-difference thresholds differ significantly from both monaural and binaural difference thresholds.

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