A bilateral hearing-aid algorithm that provides directional benefit while preserving situational awareness

  • Tobias Piechowiak GN ReSound A/S, Ballerup, Denmark
  • Rob de Vries GN ReSound, Dept. R&D, Eindhoven, The Netherlands
  • Chang Ma GN ReSound North America, Glenview, IL, USA
  • Andrew Dittberner GN ReSound North America, Glenview, IL, USA
Keywords: Directional filtering, filter optimization

Abstract

A directional filter or beamformer is a classical approach to ensure speech intelligibility by suppressing distracting sounds from certain directions. However, they have some challenges on their own: (a) white-noise gain, (b) diminished benefit in reverberation, and (c) ‘off-axis’ audibility problems. In this study a new algorithm which is part of ReSound’s Linx3D’s Bilateral Directionality III is introduced. It is designed to provide good situational awareness (SA) while mainting directional benefit (DB). SA is maximized by combining the sensitivity of both left and right hearing aids to create a true binaural omnidirectional sensitivity pattern. DB is ensured by promoting the better-ear effect and thus allowing for better separation of sounds.

References

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Published
2018-03-20
How to Cite
Piechowiak, T., de Vries, R., Ma, C., & Dittberner, A. (2018). A bilateral hearing-aid algorithm that provides directional benefit while preserving situational awareness. Proceedings of the International Symposium on Auditory and Audiological Research, 6, 159-166. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2017-19
Section
2017/3. Adaptive and learning processes with hearing devices