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Related Experiment Videos

Horizontal localization with bilateral hearing aids: without is better than with.

Tim Van den Bogaert1, Thomas J Klasen, Marc Moonen

  • 1Lab exp. ORL, K. U. Leuven, Kapucijnenvoer 33, B-3000 Leuven, Belgium. tim.vandenbogaert@uz.kuleuven.ac.be

The Journal of the Acoustical Society of America
|February 4, 2006
PubMed
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Bilateral hearing aid users show reduced directional hearing compared to normal hearing individuals. Advanced noise reduction features in hearing aids can further impair sound localization abilities.

Area of Science:

  • Audiology
  • Auditory Neuroscience
  • Speech and Hearing Sciences

Background:

  • Directional hearing is crucial for spatial awareness and communication.
  • Hearing aids aim to improve audibility but can impact sound localization.
  • Understanding the effects of modern hearing aid technology on localization is essential.

Purpose of the Study:

  • To assess the directional hearing performance of bilateral hearing aid users.
  • To determine if bilateral hearing aids preserve essential localization cues.
  • To investigate the impact of noise reduction algorithms on localization.

Main Methods:

  • Localization tests were conducted in the frontal horizontal plane.
  • Bilateral hearing aid users and normal hearing subjects were evaluated.

Related Experiment Videos

  • Stimuli and noise scenarios varied, with hearing aids tested in omnidirectional and adaptive directional modes.

    • Main Results:

    • Bilateral hearing aid users performed worse than normal hearing subjects in localization tasks.
    • Localization performance decreased significantly in complex acoustic environments for both groups.
    • Bilateral hearing aids did not preserve localization cues.
    • Adaptive directional noise reduction negatively impacted localization performance.

    Conclusions:

    • Bilateral hearing aid users exhibit deficits in directional hearing compared to normal hearing individuals.
    • Modern hearing aid technologies, particularly adaptive directional noise reduction, can compromise sound localization abilities.
    • Further research is needed to optimize hearing aid algorithms for spatial hearing preservation.