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Robotic Cochlear Implantation for Direct Cochlear Access
Published on: June 16, 2022
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A directional remote-microphone for bimodal cochlear implant recipients
Jantien L Vroegop1, Nienke C Homans1, André Goedegebure1
1a ENT-Department , Erasmus Medical Center , Rotterdam , The Netherlands.
International Journal of Audiology
|September 29, 2018
Summary
Wireless microphones improve speech recognition in noise for bimodal cochlear implant (CI) users. Connecting the device to both the CI and hearing aid (HA) showed no difference compared to CI-only use.
Area of Science:
- Audiology
- Neuroscience
- Biomedical Engineering
Background:
- Bimodal cochlear implant (CI) users often face challenges with speech recognition in noisy environments.
- Wireless remote microphones can potentially enhance auditory input for CI users.
Purpose of the Study:
- To compare speech recognition in noise for bimodal CI users when a wireless microphone is connected to the CI only versus both the CI and hearing aid (HA).
- To assess the benefit of directional versus omnidirectional microphone modes in wireless systems for bimodal CI users.
Main Methods:
- Prospective study involving 18 postlingually deafened adult bimodal CI users.
- Speech Recognition Thresholds (SRT) in babble noise were measured using a within-subjects repeated measures design.
- Listening conditions included variations in wireless microphone connectivity (CI only vs. CI+HA) and microphone mode (directional vs. omnidirectional).
Main Results:
- No significant difference in speech recognition in noise was found between connecting the wireless microphone to the CI only or to both the CI and HA.
- Switching from omnidirectional to directional mode in the CI-only condition yielded a significant improvement of 4.1 dB in SRT.
- Wireless microphone use generally improved speech recognition in noise for bimodal CI users.
Conclusions:
- For bimodal CI users, the connectivity of the wireless microphone (CI only vs. CI+HA) does not impact speech recognition in noise.
- The directional microphone mode offers a substantial benefit for speech perception in noise, particularly with a single target signal.
- Wireless microphone technology, especially with directional capabilities, is a valuable tool for improving auditory performance in challenging listening situations for bimodal CI users.
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