Comparison Between Neuro 1 and Neuro 2 Cochlear Implant Speech Processors

Participants have to complete a satisfaction questionnaire on the Neuro 1 or 2 processor.

The speech material corresponds to the lists of Lafon designed for cochlear implant patients. Each lists contains 17 monosyllabic words. Speech comprehension is evaluated by the percentage of correct words and the percentage of correct phonemes. Speech signals are presented at 65 dB SPL. 2 lists of 17 words are presented. At visit 1, the participants wear the sound processor Neuro 1. At visits 2 and 3, the participants wear the Neuro 2.

The speech material corresponds to the lists of Lafon designed for cochlear implant patients. Each lists contains 17 monosyllabic words. Speech comprehension is evaluated by the percentage of correct words and the percentage of correct phonemes. Speech signals are presented at 65 dB SPL. 2 lists of 17 words are presented. The noise corresponds to a cocktail party presented at +10 dB SNR (Speech on Noise Ratio). At visit 1, the participants wear the sound processor Neuro 1. At visits 2 and 3, the participants wear the Neuro 2.

Speech intelligibility in noise measured with the test VRB (Vocale Rapide dans le Bruit, French version of the Quick Sin). This test measures the SNR (Signal to Noise Ratio) at which the listeners understand half of the words of a sentence correctly. The outcome measure is in dB. 3 lists are presented. Speech signals are presented at 60 dB SPL.