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Related Concept Videos

Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Related Experiment Video

Updated: Aug 24, 2025

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
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Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process

Published on: June 21, 2024

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Towards Auditory Profile-Based Hearing-Aid Fittings: BEAR Rationale and Clinical Implementation.

Raul Sanchez-Lopez1,2,3,4, Mengfan Wu2,4,5,6, Michal Fereczkowski5,6

  • 1Hearing Systems Section, Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.

Audiology Research
|October 26, 2022
PubMed
Summary
This summary is machine-generated.

The Better hEAring Rehabilitation (BEAR) project successfully adapted its hearing aid fitting rationale to commercial devices. This approach tailors hearing aid settings to individual auditory profiles for improved rehabilitation.

Keywords:
audiologyhearing aidhearing rehabilitation

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Area of Science:

  • Audiology
  • Hearing Science
  • Biomedical Engineering

Background:

  • The Danish 'Better hEAring Rehabilitation' (BEAR) project developed methods for personalized hearing loss characterization and hearing aid fitting.
  • Four distinct auditory profiles were identified based on hearing loss and supra-threshold abilities.
  • A fitting rationale was created to leverage individual differences in gain prescription and signal-to-noise (SNR) improvement for tailored hearing aid treatment.

Purpose of the Study:

  • To translate the BEAR fitting rationale into clinical application using commercially available hearing aids from three industrial partners.
  • To verify the feasibility and effectiveness of the developed fitting strategy in a clinical setting.

Main Methods:

  • Signal-to-noise (SNR) improvement was assessed using advanced feature settings verified by free-field measurements on an acoustic mannikin.
  • Gain prescription was implemented through a clinically feasible fitting tool and procedure based on real-ear gain adjustments.
  • The auditory profile-based fitting strategy was compared against the NAL-NL2 fitting rule, a current best practice.

Main Results:

  • Real-ear gain and SNR improvement data confirmed the feasibility of clinical implementation.
  • The study verified differences between the BEAR profile-based fitting strategy and the NAL-NL2 fitting rule.
  • Data supports the successful transfer of the BEAR fitting rationale to commercial hearing aid devices.

Conclusions:

  • The BEAR fitting rationale has been successfully transferred to commercially available hearing aids through collaboration between academic and industrial partners.
  • The study demonstrates a viable approach for auditory profile-based hearing aid fitting, enhancing rehabilitation outcomes.