Speech intelligibility in noise of bimodal cochlear implant users
- Conditions
- H91.9Hearing loss, unspecified
- Registration Number
- DRKS00010970
- Lead Sponsor
- Institut für Akustik, Technische Hochschule Lübeck
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 26
Inclusion Criteria
Unilateral CI User
- CI user since at least half a year
- On the ear contralateral to the CI:
either wearing:
Hearing aid (hearing threshold better than 100 dB HL at 1 khz and better than 80 dB HL at 500 Hz)
or normal hearing (hearing threshold better than 30 dB HL between 250 Hz to 4 kHz).
Exclusion Criteria
- Speech intelligibility using Cochlea implantat in quiet is poorer than 50%-correct at 65 dB SPL measured with German sentence test Oldenburger Satztest.
- Subject younger than 18 years
- Subject has less than 6 months experience with their cochlea implantat.
- Subject has no residual hearing at the ear contralateral to the cochlea implantat.
Study & Design
- Study Type
- observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Assesment of speech intelligibility using a german sentence test (Oldenburger matrix test) of bimodal CI-Users in different spatial environments and signal-to-noise-ratios. <br><br>Assesment of spatial realease from masking (SRM = Benefit obtained by spatially separating speech and noise) and bimodal benefit.<br>(Difference in speech intelligibility for co-located and spatially separated conditions is calculated to obtain the SRM). Bimodal benefit is calculated by comparing speech intelligibility using CI alone with using CI and hearing aid.
- Secondary Outcome Measures
Name Time Method Assesment of speech intelligibility of bimodal CI-users using different speech processing strategies.