Hearing aid processing strategies for listeners with different auditory profiles: Insights from the BEAR project

Mengfan Wu (Andet), Raul Sanchez-Lopez (Andet), El-Haj-Ali, M. (Andet), Silje Grini Nielsen (Andet), Fereczkowski, M. (Andet), Federica Bianchi (Andet), Torsten Dau (Andet), Sébastien Santurette (Andet), Neher, T. (Oplægsholder)

Aktivitet: Foredrag og mundtlige bidragKonferenceoplæg


Background: The Better hEAring Rehabilitation (BEAR) project pursues the development and evaluation of new, clinically feasible strategies for individual hearing loss diagnosis and hearing aid (HA) fitting. Two essential elements of this research are the design of a new diagnostic test battery for identifying different auditory profiles and linking those profiles to different HA processing strategies. The current study focused on establishing links between four auditory profiles and the benefit from six HA processing strategies.

Material and methods: Sixty older individuals with bilateral mild-to-severe sensorineural hearing losses from a clinical population of HA users participated. Speech-in-noise stimuli were generated with the help of a HA simulator that included directional processing, noise reduction and dynamic range compression. Stimulus presentation was via headphones. Six HA settings differing in terms of signal-to-noise ratio (SNR) improvement and temporal and spectral speech distortions were selected for testing based on a comprehensive technical evaluation of different HA parameter settings. Speech-in-noise perception was assessed at fixed SNRs that were chosen based on individual speech reception threshold measurements. In addition, overall preference and noise annoyance were assessed using a multiple stimulus comparison paradigm.

Results: We hypothesize that the perceptual outcomes from the six HA settings will differ across the different auditory profiles. More specifically, we expect listeners showing high sensitivity to temporal and spectral signal changes to perform best with and/or to prefer HA settings that preserve those cues. In contrast, we expect listeners showing low sensitivity to temporal and spectral signal changes to perform best with settings that maximize SNR improvement, independent of any additional signal distortions.

Conclusions: We anticipate that the findings from the current study will provide the basis for the implementation of more individualized HA fitting strategies to be tested subsequently in wearable HAs.
Periode23. maj 2019
Begivenhedstitel14th Congress of the European Federation of Audiology Societies
PlaceringLisbon, Portugal