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Cochlear Implants : Influence of Microphone Aging and Dirtying

NCT02369718 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 81

Last updated 2025-09-03

No results posted yet for this study

Summary

Cochlear implant microphones are subject to aging and dirtying. The evolution may affect their efficiency. Several signal coding strategies are used in cochlear implants and their behaviour may be more or less affected by the aging process. In this work the investigators wish to assess this phenomenon.

Conditions

  • Hard of Hearing

Interventions

OTHER

Listening to 12 Fournier's lists of words

Patients will listen to words from Fournier's lists of words in presence of noise presented at different Signal to Noise Ratio (SNR). 6 disyllable words Fournier's lists are presented to the implantees: SNRs ranged from 0 to 15 decibels (dBs) (0; 3; 6; 9; 12; 15) ; the subjects repeat orally the words. Then microphone is cleaned and, again, 6 Fournier's lists are presented.

OTHER

Listening to 48 Fournier's lists of words

48 disyllable Fournier's lists of words are presented to the subjects (6 SNR\*2 coding strategies\*4 dirtying levels) and the subjects repeat orally the words. Dirtying levels will be simulated by sounds effects.

Sponsors & Collaborators

  • Hospices Civils de Lyon

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-11-30
Primary Completion
2016-04-30
Completion
2016-04-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02369718 on ClinicalTrials.gov