Blamey P J, Dowell R C, Tong Y C, Brown A M, Luscombe S M, Clark G M
J Acoust Soc Am. 1984 Jul;76(1):104-10. doi: 10.1121/1.391104.
The speech perception of two multiple-channel cochlear implant patients was compared with that of three normally hearing listeners using an acoustic model of the implant for 22 different speech tests. The tests used included a minimal auditory capabilities battery, both closed-set and open-set word and sentence tests, speech tracking and a 12-consonant confusion study using nonsense syllables. The acoustic model represented electrical current pulses by bursts of noise and the effects of different electrodes were represented by using bandpass filters with different center frequencies. All subjects used a speech processor that coded the fundamental voicing frequency of speech as a pulse rate and the second formant frequency of speech as the electrode position in the cochlea, or the center frequency of the bandpass filter. Very good agreement was found for the two groups of subjects, indicating that the acoustic model is a useful tool for the development and evaluation of alternative cochlear implant speech processing strategies.
使用植入物的声学模型，对两名多通道人工耳蜗患者与三名听力正常的听众在22种不同语音测试中的言语感知进行了比较。所使用的测试包括最小听觉能力测试组、闭集和开集单词及句子测试、言语跟踪以及使用无意义音节的12个辅音混淆研究。声学模型用噪声突发来表示电流脉冲，不同电极的效应通过使用具有不同中心频率的带通滤波器来表示。所有受试者都使用一个语音处理器，该处理器将语音的基本发声频率编码为脉冲率，将语音的第二共振峰频率编码为耳蜗中的电极位置或带通滤波器的中心频率。在两组受试者中发现了非常好的一致性，这表明声学模型是开发和评估替代性人工耳蜗语音处理策略的有用工具。
