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.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
81
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.
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.
Pavillon ORL (U) - Hôpital Edouard Herriot
Lyon, France
Percentage of correct syllable recognition
French "spondee lists"
Time frame: At day 1
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.