Amplitude Modulation and Loudness in Cochlear Implantees
نویسندگان
چکیده
منابع مشابه
Temporal modulation transfer functions in cochlear implantees using a method that limits overall loudness cues
Temporal modulation transfer functions (TMTFs) were measured for six users of cochlear implants, using different carrier rates and levels. Unlike most previous studies investigating modulation detection, the experimental design limited potential effects of overall loudness cues. Psychometric functions (percent correct discrimination of modulated from unmodulated stimuli versus modulation depth)...
متن کاملNasalance in Cochlear Implantees
OBJECTIVES Speech intelligibility is severely affected in children with congenital profound hearing loss. Hypernasality is a problem commonly encountered in their speech. Auditory information received from cochlear implants is expected to be far superior to that from hearing aids. Our study aimed at comparing the percentages of nasality in the speech of the cochlear implantees with hearing aid ...
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Gender identification of human voices was studied in a juvenile population of cochlear implant (CI) users exposed to naturalistic speech stimuli from 20 male and 20 female speakers using two different voice gender perception tasks. Stimulus output patterns were recorded from each individual CI for each stimulus, and features related to voice fundamental frequency and spectral envelope were extr...
متن کاملAmplitude modulation reduces loudness adaptation to high-frequency tones.
Long-term loudness perception of a sound has been presumed to depend on the spatial distribution of activated auditory nerve fibers as well as their temporal firing pattern. The relative contributions of those two factors were investigated by measuring loudness adaptation to sinusoidally amplitude-modulated 12-kHz tones. The tones had a total duration of 180 s and were either unmodulated or 100...
متن کاملAcoustic Analysis of Speech of Cochlear Implantees and Its Implications
OBJECTIVES Cochlear implantees have improved speech production skills compared with those using hearing aids, as reflected in their acoustic measures. When compared to normal hearing controls, implanted children had fronted vowel space and their /s/ and /∫/ noise frequencies overlapped. Acoustic analysis of speech provides an objective index of perceived differences in speech production which c...
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ژورنال
عنوان ژورنال: Journal of the Association for Research in Otolaryngology
سال: 2009
ISSN: 1525-3961,1438-7573
DOI: 10.1007/s10162-009-0188-5