A COMPARISON OF SPEECH-PERCEPTION OF COCHLEAR IMPLANTEES USING THE SPECTRAL MAXIMA SOUND PROCESSOR (SMSP) AND THE MSP(MULTIPEAK) PROCESSOR

被引:27
作者
MCKAY, CM [1 ]
MCDERMOTT, HJ [1 ]
VANDALI, AE [1 ]
CLARK, GM [1 ]
机构
[1] UNIV MELBOURNE,DEPT OTOLARYNGOL,PARKVILLE,VIC 3052,AUSTRALIA
基金
英国医学研究理事会;
关键词
ELECTRICAL STIMULATION; MULTIPLE-CHANNEL IMPLANTS; POSTLINGUISTICALLY DEAF ADULTS; SPEECH PERCEPTION TESTS;
D O I
10.3109/00016489209137470
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
The Spectral Maxima Sound Processor (SMSP) is a portable speech processor which has recently been developed at the University of Melbourne for use with multiple-electrode cochlear implants. In this processor, the six largest outputs (maxima) of 16 bandpass filters are used to stimulate the cochlea on a place basis at a constant rate. This speech processing strategy has been compared with the MSP(MULTIPEAK) strategy, in which four electrodes are selected for stimulation in every glottal pulse period. The study was undertaken on four postlinguistically deaf adults. The results show that, for this group of subjects, the performance of the SMSP processor was significantly better than that of the MSP(MULTIPEAK) processor for the recognition of closed-set vowels and consonants, open-set monosyllabic words, and open-set sentences in noise, when using electrical stimulation alone. The SMSP mean scores were: vowels 91.3%, consonants 74.9%, words 57.4%, and sentences in noise 78.7%. The MSP(MULTIPEAK) mean scores were: vowels 76.3%, consonants 59.4%, words 39.9%, and sentences in noise 50.0%.
引用
收藏
页码:752 / 761
页数:10
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