Faulkner A, Fourcin A J, Moore B C
Department of Phonetics and Linguistics, University College London, England.
Acta Otolaryngol Suppl. 1990;469:172-80.
The SiVo aid, which provides a sinusoidal signal indicating voice fundamental frequency and voicing information, was compared as an aid to lipreading to a conventional hearing aid having extended low-frequency output. Speech perceptual measures of consonant confusions in lipreading and the identification of a simple intonation contrast were collected from a group of 8 profoundly deaf adults. Audiometric and psychoacoustic measures were also collected. In the intonation task, 6 of the 7 patients tested performed better with the SiVo aid and the seventh scored perfectly with both aids. Four patients (out of 8) preferred to use the SiVo aid rather than the conventional aid, and 2 of these showed a significant advantage with the SiVo aid in the aided lipreading of consonants. The remaining 4 patients preferred the conventional aid, although none of these patients showed a significant advantage with the conventional aid in the lipreading of consonants. The 4 patients who preferred the SiVo aid over the conventional aid had very profound hearing loss and minimal dynamic range at 500 Hz and above, and those receiving the greatest benefit showed no measurable frequency selectivity. In the 2 patients who preferred the SiVo aid, yet showed no significant advantage for the SiVo aid in consonant lipreading, consonant confusions were also measured for aided lipreading, using a prototype aid providing both voice fundamental frequency and voiceless excitation patterns. Both patients showed additional and significant benefit from inclusion of the voiceless pattern element.
将提供表示语音基频和发声信息的正弦信号的SiVo辅助装置作为唇读辅助工具，与具有扩展低频输出的传统助听器进行了比较。从一组8名极重度聋人成年人中收集了唇读中辅音混淆的语音感知测量数据以及简单语调对比的识别数据。还收集了听力测定和心理声学测量数据。在语调任务中，接受测试的7名患者中有6名使用SiVo辅助装置时表现更好，第7名患者使用两种辅助装置时得分均为满分。8名患者中有4名更喜欢使用SiVo辅助装置而非传统辅助装置，其中2名患者在辅音唇读辅助方面使用SiVo辅助装置具有显著优势。其余4名患者更喜欢传统辅助装置，尽管这些患者在辅音唇读方面使用传统辅助装置均未显示出显著优势。比起传统辅助装置更喜欢SiVo辅助装置的4名患者有极重度听力损失，在500Hz及以上频率具有最小的动态范围，且受益最大的患者没有可测量的频率选择性。在更喜欢SiVo辅助装置但在辅音唇读方面未显示出SiVo辅助装置有显著优势的2名患者中，使用同时提供语音基频和清音激励模式的原型辅助装置测量了辅音唇读辅助中的辅音混淆情况。两名患者使用清音模式元素后均显示出额外的显著益处。
