| Scala Tympanic 전극배열 인공와우 시스템에
사용되는 언어처리방식 |
| 임덕환 |
| 한림대 언어청각학부, 청각언어연구소, ARICS |
| Speech Coding Strategies in the Scala Tympanic Electrode Array
of the Cochlear Implant System |
| Dukhwan Lim |
| Hallym University, Division of Speech Pathology & Audiology, Research Institute of Audiology & Speech Pathology, ARICS, Chuncheon, Korea |
| Correspondence |
Dukhwan Lim ,Tel: (033) 248-2217, Fax: (02) 6280-9133, Email: dlim@hallym.ac.kr
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Received: December 7, 2005; Accepted: December 12, 2005. Published online: December 31, 2005. |
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| ABSTRACT |
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The speech coding strategy is one of the important parts influencing the performance of the cochlear implant system. This process extracts crucial features in speech sounds and processes electrical versions of them to stimulate residual auditory neurons effectively. The nature of strategies can be classified as pulsatile, analog, and mixed waveform stimulations depending on waveform morphologies. The number of channels at the time of stimulation determines the modes of simultaneous, sequential, and mixed time base stimulations. The modes of stimulation can, even, be mixed as in electrical and acoustical stimulation (EAS). There have been diverse variations and the corresponding names of coding strategies for these stimulations. Currently, new types of coding strategies keep emerging: some are available now and others are waiting for clinical evaluations. Developing effective coding strategies seems to involve evaluating the performance in clinical trials based on auditory neural response data to the electrical stimulation. |
| Key Words:
Speech coding stratiegies·Cochlear implant·Mapping |
| 중심단어:
Speech coding strategies· Cochlear implant
· Mapping. |
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