Langereis M C, Bosman A J, van Olphen A F, Smoorenburg G F
Department of Otorhinolaryngology, University Hospital, Utrecht, The Netherlands.
Audiology. 1998 Jul-Aug;37(4):219-30. doi: 10.3109/00206099809072976.
The present study addresses the effect of cochlear implantation on the voice fundamental frequency at which 20 post-lingually deafened Dutch subjects utter speech materials. All subjects received the Nucleus 22 cochlear implant (3 WSP and 17 MSP processors). Speech recordings were made pre-implantation and three and twelve months post-implantation with the implant switched on and off. The fundamental frequency (f0) was sampled while reading a text. The pre-implantation results show that in some subjects, f0 was too high compared with the range in f0 of normally-hearing subjects. Post-implantation, with the implant switched on, we found that the abnormally high f0 values pre-implantation changed toward the normative values. In addition, post-implantation we found that the range over which f0 varied within a subject while reading the text, the f0 sway, decreased for most subjects who, pre-implantation, had their f0 sway outside the normative ranges, the normative range being defined as the interval between the mean plus/minus one standard deviation of the f0 sway found for normally-hearing subjects. Voice fundamental frequency of post-lingually deafened adults is characterized by large interindividual variability in the pre-implantation f0 values. This large interindividual variability is found also in the effect of cochlear implantation on f0.
本研究探讨了人工耳蜗植入对20名语后聋荷兰受试者说出语音材料时的语音基频的影响。所有受试者均接受了Nucleus 22人工耳蜗植入（3个WSP处理器和17个MSP处理器）。在植入前以及植入后三个月和十二个月分别进行语音记录，记录时人工耳蜗开启和关闭。在阅读文本时对基频（f0）进行采样。植入前的结果表明，在一些受试者中，与正常听力受试者的f0范围相比，f0过高。植入后，人工耳蜗开启时，我们发现植入前异常高的f0值朝着正常范围变化。此外，植入后我们发现，在阅读文本时，大多数植入前f0摆动超出正常范围的受试者（正常范围定义为正常听力受试者f0摆动的均值加减一个标准差之间的区间），其f0摆动范围减小。语后聋成年人的语音基频在植入前f0值方面存在较大的个体差异。人工耳蜗植入对f0的影响也存在这种较大的个体差异。
