Examination of a hybrid beamformer that preserves auditory spatial cues

The Journal of the Acoustical Society of America
Virginia BestGerald Kidd

Abstract

A hearing-aid strategy that combines a beamforming microphone array in the high frequencies with natural binaural signals in the low frequencies was examined. This strategy attempts to balance the benefits of beamforming (improved signal-to-noise ratio) with the benefits of binaural listening (spatial awareness and location-based segregation). The crossover frequency was varied from 200 to 1200 Hz, and performance was compared to full-spectrum binaural and beamformer conditions. Speech intelligibility in the presence of noise or competing speech was measured in listeners with and without hearing loss. Results showed that the optimal crossover frequency depended on the listener and the nature of the interference.

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Citations

Oct 20, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·Gerald Kidd
Jan 15, 2020·Trends in Hearing·Le WangBarbara G Shinn-Cunningham
Mar 3, 2019·The Journal of the Acoustical Society of America·Sterling W SheffieldDouglas S Brungart
Dec 3, 2020·The Journal of the Acoustical Society of America·Sarah Villard, Gerald Kidd
Jan 1, 2021·The Journal of the Acoustical Society of America·Gerald KiddAndrew J Byrne
Jul 10, 2021·The Journal of the Acoustical Society of America·David YunMatthew J Goupell

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