FREQUENCY DISCRIMINATION AND SPEECH RECOGNITION BY PATIENTS WHO USE THE INERAID AND CONTINUOUS INTERLEAVED SAMPLING COCHLEAR-IMPLANT SIGNALPROCESSORS

Patients who use the Ineraid cochlear implant were tested in four expe riments with materials which assessed frequency discrimination and spe ech understanding. In each experiment both frequency discrimination an d speech recognition varied among patients, Correlations between the t wo measures were significant and ranged from 0.60 to 0.83. Most genera lly, frequency discrimination was better in the frequency domain of F1 than in the domain of F2. In experiment 5, both the Ineraid signal pr ocessing strategy and a continuous interleaved sampling (CIS) strategy were implemented for a single patient. The CIS strategy improved freq uency discrimination in the domain of F2 and improved speech understan ding. (C) 1996 Acoustical Society of America.