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Titre : | Changes in Orientation Behavior due to Extended High-Frequency (5 to 10 kHz) Spatial Cues (2022) |
Auteurs : | William M. Whitmer ; David McShefferty ; Suzanne C. Levy ; Graham Naylor ; Brent W. Edwards |
Type de document : | Article |
Dans : | Ear and hearing (Vol.43, n°2, Mars-avril 2022) |
Article en page(s) : | p. 545-553 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Aides auditives ; Orientation spatiale ; Traitement spatialAutres descripteurs Bande passante |
Résumé : |
Objectives: Current hearing aids have a limited bandwidth, which limits the intelligibility and quality of their output, and inhibits their uptake. Recent advances in signal processing, as well as novel methods of transduction, allow for a greater useable frequency range. Previous studies have shown a benefit for this extended bandwidth in consonant recognition, talker-sex identification, and separating sound sources. To explore whether there would be any direct spatial benefits to extending bandwidth, we used a dynamic localization method in a realistic situation.
Design: Twenty-eight adult participants with minimal hearing loss reoriented themselves as quickly and accurately as comfortable to a new, off-axis near-field talker continuing a story in a background of far-field talkers of the same overall level in a simulated large room with common building materials. All stimuli were low-pass filtered at either 5 or 10 kHz on each trial. To further simulate current hearing aids, participants wore microphones above the pinnae and insert earphones adjusted to provide a linear, zero-gain response. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=yrovftx&AN=00003446-202203000-00026 |