Speech intelligibility in noise of bimodal cochlear implant users

Speech intelligibility in noise of bimodal cochlear implant users - SPIN-BIM-CI

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00010970

Enrollment

Registered

2016-08-12

Start date

2016-09-01

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

H91.9

Interventions

Group 1: Cochlear implant users, using hearing aid on the other ear side: assesment of speech intelligibility in different spatially arranged noise situations Group 2: Unilateral cochlear implant user

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

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

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.

Design outcomes

Primary

Measure	Time frame
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. Assesment of spatial realease from masking (SRM = Benefit obtained by spatially separating speech and noise) and bimodal benefit. (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.	—

Measure

Time frame

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. Assesment of spatial realease from masking (SRM = Benefit obtained by spatially separating speech and noise) and bimodal benefit. (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

Measure	Time frame
Assesment of speech intelligibility of bimodal CI-users using different speech processing strategies.	—

Countries

Germany

Contacts

Public ContactTim Jürgens

Institut für Akustik, Technische Hochschule Lübeck

tim.juergens@uni-oldenburg.de04513005261

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026