Development of a speech-in-multitalker-babble paradigm to assess word-recognition performance

J Am Acad Audiol. 2003 Nov;14(9):453-70.

Abstract

A simple word-recognition task in multitalker babble for clinic use was developed in the course of four experiments involving listeners with normal hearing and listeners with hearing loss. In Experiments 1 and 2, psychometric functions for the individual NU No. 6 words from Lists 2, 3, and 4 were obtained with each word in a unique segment of multitalker babble. The test paradigm that emerged involved ten words at each of seven signal-to-babble ratios (S/B) from 0 to 24 dB. Experiment 3 examined the effect that babble presentation level (70, 80, and 90 dB SPL) had on recognition performance in babble, whereas Experiment 4 studied the effect that monaural and binaural listening had on recognition performance. For listeners with normal hearing, the 90th percentile was 6 dB S/B. In comparison to the listeners with normal hearing, the 50% correct points on the functions for listeners with hearing loss were at 5 to 15 dB higher signal-to-babble ratios.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acoustic Stimulation
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Hearing Loss, High-Frequency / physiopathology*
  • Humans
  • Male
  • Middle Aged
  • Perceptual Masking*
  • Psychometrics
  • Speech Reception Threshold Test / instrumentation*
  • Vocabulary*