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Insert earphones for speech recognition testing.

F N Martin1, G K Severance, L Thibodeau

  • 1University of Texas, Austin.

Journal of the American Academy of Audiology
|January 1, 1991
PubMed
Summary
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Standard supra-aural earphones and insert earphones can be used interchangeably for word recognition tests at higher sensation levels. Insert earphones offer benefits for cross-hearing and masking in audiology assessments.

Area of Science:

  • Audiology
  • Speech Perception
  • Hearing Science

Background:

  • Standard supra-aural earphones (TDH-49P) and insert earphones (ER-3A) are commonly used in audiological testing.
  • Understanding the interchangeability of these devices is crucial for accurate hearing assessments.

Purpose of the Study:

  • To compare the performance-intensity functions using PB word lists with both standard supra-aural earphones and insert earphones.
  • To evaluate the interchangeability of TDH-49P and ER-3A earphones for word recognition testing.

Main Methods:

  • 19 normal-hearing and 15 sensorineural hearing-impaired subjects participated.
  • Performance-intensity functions were measured using PB word lists.
  • Comparisons were made between TDH-49P and ER-3A earphones.

Related Experiment Videos

Main Results:

  • Earphone type did not significantly affect word recognition at higher sensation levels.
  • TDH-49P and ER-3A earphones can be used interchangeably for word recognition tests under these conditions.
  • Insert earphones demonstrated potential benefits regarding cross-hearing and masking.

Conclusions:

  • For word recognition testing at higher sensation levels, both supra-aural and insert earphones yield comparable results.
  • Insert earphones may offer advantages in managing cross-hearing and masking during audiological evaluations.
  • Clinicians can confidently select either earphone type for high-level word recognition tasks.