Performance of dual-microphone in-the-ear hearing aids

M. Valente, G. Schuchman, L. G. Potts, L. B. Beck

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Fifty subjects with mild to moderate-severe sensorineural hearing loss and prior experience with binaural amplification were evaluated at two sites (25 subjects at each site). Signal-to-noise ratios (SNRs) were measured using the Hearing in Noise Test (HINT) after each subject wore binaural in-the-ear hearing aids programmed for omnidirectional and dual-microphone performance, for 4 weeks. Both microphone conditions were evaluated under 'ideal' (signal at 0°; noise at 180°) and 'diffuse' (signal at 0°; correlated noise at 45°, 135°, 225°, and 315°) listening conditions. Results revealed statistically significant mean improvements in SNRs between 3.7 and 3.5 dB at Site I and 3.2 and 2.7 dB at Site II for the ideal and diffuse listening conditions, respectively, for the dual-microphones in comparison to the performance provided by the omnidirectional microphone.

Original languageEnglish
Pages (from-to)181-189
Number of pages9
JournalJournal of the American Academy of Audiology
Issue number4
StatePublished - 2000


  • Diffuse
  • Dual-microphone
  • HINT thresholds
  • Ideal
  • Omnidirectional
  • Signal-to- noise ratio
  • Super compression with adaptive release time


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