Measurement of the sound transmission characteristics of normal neck tissue using a reflectionless uniform tube.
Measurement of the sound transmission characteristics of normal neck tissue using a reflectionless uniform tube.
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DOI：
10.1121/1.4883355
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
Liang Wu;Ke Xiao;J. Dong;Supin Wang;M. Wan
中科院分区：
文献类型：
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作者：
Liang Wu;Ke Xiao;J. Dong;Supin Wang;M. Wan
了解颈部组织的声音传输在声音功能评估和电喉改善等领域是必要和重要的。本文提出了一种使用无反射管测量10名正常受试者（5男5女）普通话元音发音时颈部频响函数（NFRF）的简单方法。在不同的颈部位置测量不同受试者产生不同元音的NFRF，并比较该方法的有效性，并确定正常受试者的NFRF变化。结果表明，该方法是一种简便、有效的方法，可获得准确的NFRF。对于正常受试者，颈部组织可被视为低通滤波器，最大增益为310 Hz，滚降斜率为-8.4 dB/倍频，在2000 Hz以上变平。颈部的测量位置不影响NFRF的形状，但确实改变了NFRF的总体增益。此外，在低频率的NFRFs中存在显著的性别差异。最后，对该方法的应用前景和研究结果进行了展望。
Understanding the sound transmission of the neck tissue is necessary and important in areas such as vocal function evaluation and electrolarynx improvement. In this paper, a simple method using a reflectionless tube was proposed to measure the neck frequency response function (NFRF) of ten normal subjects (five males and five females) during Mandarin vowel production. The NFRFs across different subjects producing different vowels were measured at different neck positions and compared to confirm the effectiveness of the method, and determine the NFRF variations in normal subjects. The results showed that the proposed method offered an easy and effective way to obtain an accurate NFRF. For normal subjects, the neck tissue can be treated as a low-pass filter, with a maximum gain at 310 Hz and a roll-off at a slope of -8.4 dB/octave, flattening out above 2000 Hz. The measurement position on the neck did not influence the shape of the NFRF, but did change the overall gains of the NFRF. In addition, there was a significant gender difference in NFRFs at the low frequencies. Finally, some potential applications of this method and the results are suggested.