Feasibility of measurement of a voice range profile with a semi-occluded vocal tract.
Feasibility of measurement of a voice range profile with a semi-occluded vocal tract.
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DOI：
10.3109/14015439.2010.548828
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发表时间：
2011-04
期刊：
影响因子：
--
通讯作者：
Hunter EJ
中科院分区：
文献类型：
--
作者：
Titze IR;Hunter EJ
用细吸管半阻塞声道为评估声音中的强度和基频的生理范围提供了一些优势。可以获得信号，而不必担心房间噪音，口到麦克风的距离，或由患者或客户产生的过度响度引起的声音损伤。我们表明，大声和柔和的发声到吸管之间的差异是明确的测量和反映软大声的差异测量空气传播的声音从一个开放的嘴。使用这种技术来获取传统的语音范围轮廓，基频的范围不受限制，并且损伤的风险似乎比传统方法小。在基频范围的较低部分中，在口处测量的稳定压力构成声门下（肺）压力的范围分布。
Semi-occlusion of the vocal tract with a thin straw provides some advantages for assessing the physiological ranges of intensity and fundamental frequency in a voice. Signals can be obtained without concern about room noise, mouth-to-microphone distance, or vocal injury caused by excessive loudness produced by a patient or client. We show that differences between loud and soft phonation into the straw are clearly measureable and reflect the soft-loud differences measured from airborne sound radiating from an open mouth. Using this technique to acquire a traditional voice range profile, the range of fundamental frequency is not limited and risk for injury seems to be less than for traditional methods. In the lower portion of the fundamental frequency range, the steady pressures measured at the mouth constitute a range profile for subglottal (lung) pressure.