1. Adult Users of the Oticon Medical Neuro Cochlear Implant System Benefit from Beamforming in the High Frequencies
- Author
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Chadlia Karoui, Bianca Bastos Cordeiro, Romane Demullier, Fabiana Danieli, Ariane Laplante-Lévesque, Marcos Roberto Banhara, Christophe Vincent, Marine Ardoint, Carlos Maurício Cardeal Mendes, Michel Hoen, Fanny Gauvrit, CHU Lille, Inserm, Université de Lille, Advanced Drug Delivery Systems (ADDS) - U1008, Université Fédérale de Bahia [UFBA], Federal University of Sao Paulo [Unifesp], Linköpings universitet, Oticon Medical / Neurelec, Université Lille Nord (France), Université Fédérale de Bahia (UFBA), Médicaments et biomatériaux à libération contrôlée: mécanismes et optimisation - Advanced Drug Delivery Systems - U 1008 (MBLC - ADDS), and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)
- Subjects
Beamforming ,directional microphones ,Computer science ,Speech recognition ,medicine.medical_treatment ,[SDV]Life Sciences [q-bio] ,Oto-rino-laryngologi ,Speech identification ,Article ,beamforming ,Background noise ,03 medical and health sciences ,0302 clinical medicine ,cochlear implants ,Cochlear implant ,medicine ,030223 otorhinolaryngology ,Random allocation ,speech identification in quiet and in noise ,Ranging ,Noise ,RF1-547 ,Otorhinolaryngology ,QUIET ,030217 neurology & neurosurgery - Abstract
The Oticon Medical Neuro cochlear implant system includes the modes Opti Omni and Speech Omni, the latter providing beamforming (i.e., directional selectivity) in the high frequencies. Two studies compared sentence identification scores of adult cochlear implant users with Opti Omni and Speech Omni. In Study 1, a double-blind longitudinal crossover study, 12 new users trialed Opti Omni or Speech Omni (random allocation) for three months, and their sentence identification in quiet and noise (+10 dB signal-to-noise ratio) with the trialed mode were measured. The same procedure was repeated for the second mode. In Study 2, a single-blind study, 11 experienced users performed a speech identification task in quiet and at relative signal-to-noise ratios ranging from -3 to +18 dB with Opti Omni and Speech Omni. The Study 1 scores in quiet and in noise were significantly better with Speech Omni than with Opti Omni. Study 2 scores were significantly better with Speech Omni than with Opti Omni at +6 and +9 dB signal-to-noise ratios. Beamforming in the high frequencies, as implemented in Speech Omni, leads to improved speech identification in medium levels of background noise, where cochlear implant users spend most of their day. Funding Agencies|Oticon Medical; Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (Coordination for the Improvement of Higher Education Personnel) from the Ministry of Education of Brazil
- Published
- 2021
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