Use of a single channel dedicated to conveying enhanced temporal periodicity cues in cochlear implants: effects on prosodic perception and vowel identification.

摘要: The continuous interleaved sampling (CIS) strategy for cochlear implants has well-established limitations the perception of pitch changes in speech. This study investigated a modification CIS which one channel was dedicated to transmission temporal encoding fundamental frequency (F0). Normal hearing subjects listening noise-excited vocoders, and implantees were tested on labelling movement diphthongal glides, using intonation information identify sentences as question or statement, vowel recognition. There no significant differences between modified processing However, while there limited evidence improved relative with simplified F0 modulation applied most basal channel, general it appears that implant users, restricting F0-related does not provide significantly enhanced information.