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Related Experiment Videos

Efficient adaptive methods for measuring speech reception threshold in quiet and in noise

B Hagerman1, C Kinnefors

  • 1Department of Ear, Eye and Skin, Karolinska Institute, Stockholm, Sweden.

Scandinavian Audiology
|January 1, 1995
PubMed
Summary

This study introduces an adaptive method for measuring speech reception thresholds in noise and quiet. The new adaptive approach significantly improves reliability and reduces testing time for both speech reception threshold in noise (S/N-threshold) and speech reception threshold in quiet (SRT).

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Area of Science:

  • Audiology
  • Speech-Language Pathology
  • Hearing Science

Background:

  • Traditional methods for measuring speech reception thresholds (SRT) can be time-consuming and exhibit variability.
  • Evaluating speech reception threshold in noise (S/N-threshold) reliability and learning effects is crucial for clinical audiology.
  • The development of efficient and reliable audiological testing methods is an ongoing area of research.

Purpose of the Study:

  • To evaluate the reliability and learning effects of a new adaptive method for measuring the speech reception threshold in noise (S/N-threshold).
  • To assess a corresponding adaptive method for measuring the speech reception threshold in quiet (SRT).
  • To compare the performance of the adaptive methods against traditional non-adaptive techniques.

Main Methods:

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  • An adaptive method was developed and tested for measuring S/N-threshold using Hagerman's speech and noise material.
  • A parallel adaptive method was evaluated for SRT measurement in quiet.
  • Testing involved 10 normal-hearing and 40 hearing-impaired subjects.

Main Results:

  • The adaptive method demonstrated significantly better test-retest reliability for S/N-threshold compared to the older non-adaptive method.
  • The adaptive S/N-threshold measurement was achievable within two minutes for most patients, with a reliability of 0.78 dB.
  • Learning effects were found to be negligible for most subjects with the adaptive method after a brief training session.
  • The adaptive SRT method provided results as reliable as the traditional spondée method but in a shorter duration.

Conclusions:

  • The novel adaptive method offers a more reliable and efficient approach for measuring S/N-threshold in audiological assessments.
  • The adaptive method for SRT is equally reliable as traditional methods and offers a time-saving advantage.
  • These adaptive techniques are valuable tools for improving the efficiency and accuracy of audiological evaluations.