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A binaural auditory steering strategy based hearing-aid algorithm design.

Tobias Piechowiak1, Changxue Ma1, Rob de Vries1

  • 1GN Hearing A/S, Ballerup, Denmark tpiechowiak@gnresound.com, cma@gnresound.com, rdvries@gnresound.com, adittberner@gnresound.com.

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Summary
This summary is machine-generated.

This study introduces a new hearing aid strategy called Binaural Auditory Steering Strategy (BASS). BASS improves speech understanding and spatial awareness by using binaural filters, unlike traditional methods.

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Area of Science:

  • Acoustics
  • Signal Processing
  • Hearing Aid Technology

Background:

  • Traditional beamforming in hearing aids enhances speech intelligibility but degrades spatial awareness and distorts acoustic cues.
  • This degradation occurs because conventional methods alter head-related transfer functions and rely on monaural, not binaural, processing.

Purpose of the Study:

  • To propose a novel binaural auditory steering strategy (BASS) for hearing aid spatial filters.
  • To design filters that maintain speech intelligibility from a target direction while improving environmental acoustic awareness.

Main Methods:

  • Development of the Binaural Auditory Steering Strategy (BASS).
  • Design of asymmetrically presented spatial filters based on the BASS.
  • Creation of an objective metric for evaluating BASS effectiveness.
  • Conducting a subjective study to assess the BASS performance.

Main Results:

  • The proposed BASS effectively improves awareness of the surrounding acoustic environment.
  • BASS preserves the intelligibility of speech from a target direction.
  • Both objective and subjective evaluations confirm the effectiveness of the BASS.

Conclusions:

  • The Binaural Auditory Steering Strategy (BASS) offers a significant advancement in hearing aid technology.
  • BASS provides a balanced approach, enhancing both speech comprehension and environmental awareness for hearing aid users.