Detection and Recognition Masking-Level Differences for the Individual CID W-1 Spondaic Words The detection and recognition masking-level differences for the 36 individual CID W-1 spondaic words (Technisonic Studios) were established on 36 listeners with normal hearing. The masking for two conditions, S0N0 and Sπ N0' was accomplished with 70-dB-SPL speech-spectrum noise. The word lists were administered in 2-dB decrements with the 36 ... Research Article
Research Article  |   June 01, 1982
Detection and Recognition Masking-Level Differences for the Individual CID W-1 Spondaic Words
 
Author Affiliations & Notes
  • Richard H. Wilson
    Veterans Administration Medical Center, Long Beach, California University of California, Irvine
  • Jane L. Hopkins
    San Diego State University, San Diego, California
  • Carol M. Mance
    San Diego State University, San Diego, California
  • Robert E. Novak
    San Diego State University, San Diego, California
Article Information
Research Articles
Research Article   |   June 01, 1982
Detection and Recognition Masking-Level Differences for the Individual CID W-1 Spondaic Words
Journal of Speech, Language, and Hearing Research, June 1982, Vol. 25, 235-242. doi:10.1044/jshr.2502.235
History: Received September 23, 1980 , Accepted March 2, 1981
 
Journal of Speech, Language, and Hearing Research, June 1982, Vol. 25, 235-242. doi:10.1044/jshr.2502.235
History: Received September 23, 1980; Accepted March 2, 1981

The detection and recognition masking-level differences for the 36 individual CID W-1 spondaic words (Technisonic Studios) were established on 36 listeners with normal hearing. The masking for two conditions, S0N0 and Sπ N0' was accomplished with 70-dB-SPL speech-spectrum noise. The word lists were administered in 2-dB decrements with the 36 words presented at each signal-to-noise ratio, which ranged from 9 dB to -19 dB for S0N0 and from 3 dB to -25 dB for SπN0'. The detection and recognition thresholds determined for each spondaic word under masking conditions are presented. Additionally, the slopes of the psychometric functions for cach word under both conditions are given. The mean masking-level difference (S0N0-SπN0') for the detection-response task was 9.4 dB (SD = .7 dB). The mean masking-level difference for the recognition task was 7.2 dB (SD = 1.4 dB). The recognition masking-level differences for the individual spondaic words ranged from 4.4 dB (stairway) to 10.0 dB (oatmeal). A list of 10 words that had the largest masking-level differences for recognition is suggested to enhance the clinical utility of the masking-level difference for speech.

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