Abstract
Estimates of loudness balance were obtained for acoustically and electrically presented 250 Hz sine signals from a patient who uses the Ineraid multichannel cochlear implant. Acoustic and electric loudness matching was possible because the patient evidenced a 25 dB HL threshold at 250 Hz in his nonimplanted ear. The level of the electrical stimulus in microamperes required for a balance of loudness grew linearly with equal increments in decibels for the acoustic stimulus. These data, in concert with the very limited data from previous studies, provide a rationale for using a logarithmic transformation of acoustic to electric intensity in signal processors for cochlear implants.
Original language | English (US) |
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Pages (from-to) | 290-292 |
Number of pages | 3 |
Journal | Ear and hearing |
Volume | 14 |
Issue number | 4 |
DOIs | |
State | Published - Aug 1993 |
ASJC Scopus subject areas
- Otorhinolaryngology
- Speech and Hearing