Toward an individual-specific model of impaired speech intelligibility

Authors

  • Van Summers Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Matthew J. Makashay Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Elena Grassi Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Ken W. Grant Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Joshua G. W. Bernstein Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Brian E. Walden Walter Reed Army Medical Center, Army Audiology and Speech Center, Washington, DC, USA
  • Marjorie R. Leek VA RR&D National Center for Rehabilitative Auditory Research, Portland, OR, USA
  • Michelle R. Molis VA RR&D National Center for Rehabilitative Auditory Research, Portland, OR, USA

Abstract

Hearing-impaired listeners with similar quiet thresholds often show very different real-world speech intelligibility deficits in listening situations involving competing sounds. The current study is part of larger research project focused on: (1) examining how, and to what extent, these between-subject differences in speech recognition relate to differences in suprathreshold auditory functioning, and (2) on generating accurate, individualized models to predict auditory and auditory-visual speech recognition by hearing-impaired listeners in adverse listening conditions. Individual hearing-impaired and normal-hearing listeners are being tested on a range of psychoacoustic tasks intended to characterize auditory processing sensitivity along a variety of dimensions (frequency selectivity, peripheral compression, traveling wave dispersion, inner hair cell status, spectral and temporal modulation sensitivity and fine-structure processing). Here we report estimates of frequency selectivity and peripheral compression for hearing impaired listeners with similar audiograms and very different per- formance on speech in noise. Comparisons between hearing-impaired and normally-hearing subjects on psychoacoustic measures and their relation to speech recognition in noise will be discussed.

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Additional Files

Published

2007-12-15

How to Cite

Summers, V., Makashay, M. J., Grassi, E., Grant, K. W., Bernstein, J. G. W., Walden, B. E., … Molis, M. R. (2007). Toward an individual-specific model of impaired speech intelligibility. Proceedings of the International Symposium on Auditory and Audiological Research, 1, 113–122. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2007-11

Issue

Section

2007/1. Auditory signal processing and perception