The sound of a cochlear implant - Revision - 1

Project: Research project

Project Details


The sound of a cochlear implant - Revision - 1 The sound of a cochlear implant We have measured sound quality for six Advanced Bionics SSD-CI patients at two time points. For this project, we will find in our database the sound quality judgements of a group of MED EL patients matched to the AB patients in terms of experience with their CI (and with electrode arrays that were inserted to at least an average insertion angle). 2. MED EL will be conducting a multi-center trial of CIs for SSD patients in the US. To obtain data on what the MED EL device sounds like at initial testing and over time, we will create an internet accessible form for the patients in that study that will record their impressions of sound quality. These data can be compared to the sound of the CI for AB patients shortly after fitting. 3. We will continue collecting subjective sound quality data on all devices via our web-based app. We will collect additional data in English (with R. Gifford), German (with A. Buchner) and Polish (with A. Lorens). 3. Using Maestro 9 software, we will evaluate a fitting scheme that includes electrode- frequency based filter bands on the channels between 1 and 3 kHz, and stretched filter bands above and below to cover the entire range between 70-8500 Hz. At issue is how these MAESTRO anatomy-based fittings compare with standard fitting in quality comparisons in SSD users. We will test (1) ABF SG, (2) SG tonotopic < 3k Hz, (3) ABF OC, (4) ABF OC Tonotopic < 3K Hz (5) a Vanderbilt fitting turning off selected electrodes and (6) the patients clinical map. Patients will be allowed to adapt to new fittings for approximately 3 days to a week before testing. All testing will be done remotely using an app we developed during the current project. 4. We will continue to explore ways to improve the muffled percept that patients commonly report.
Effective start/end date5/1/205/23/22


  • INDUSTRY: Foreign Company: $34,231.00


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