Newman R A, Emanuel F W
Department of Communication, University of South Dakota, Vermillion 57069.
J Speech Hear Res. 1991 Aug;34(4):753-60. doi: 10.1044/jshr.3404.753.
This study was designed to investigate the effects of vocal fo on vowel spectral noise level (SNL) and perceived vowel roughness for subjects in high- and low-pitch voice categories. The subjects were 40 adult singers (10 each sopranos, altos, tenors, and basses). Each produced the vowel /a/ in isolation at a comfortable speaking pitch, and at each of seven assigned pitches spaced at whole-tone intervals over a musical octave within his or her singing pitch range. The eight /a/ productions were repeated by each subject on a second test day. The SNL differences between repeated test samples (different days) were not statistically significant for any subject group. For the vowel samples produced at a comfortable pitch, a relatively large SNL was associated with samples phonated by the subjects of each sex who manifested the relatively low singing pitch range. Regarding the vowel samples produced at the assigned-pitch levels, it was found that both vowel SNL and perceived vowel roughness decreased as test-pitch level was raised over a range of one octave. The relationship between vocal pitch and either vowel roughness or SNL approached linearity for each of the four subject groups.
本研究旨在调查嗓音音高对高、低音嗓音类别的受试者元音频谱噪声水平（SNL）和元音粗糙度感知的影响。受试者为40名成年歌手（女高音、女低音、男高音和男低音各10名）。每位歌手在舒适的说话音高上单独发出元音/a/，并在其歌唱音高范围内，以全音程间隔在一个音乐八度内分配的七个音高中的每个音高上发出元音/a/。每位受试者在第二个测试日重复这八次/a/的发音。对于任何受试者组，重复测试样本（不同日期）之间的SNL差异均无统计学意义。对于在舒适音高上发出的元音样本，相对较大的SNL与每个性别中表现出相对较低歌唱音高范围的受试者发出的样本相关。关于在指定音高水平上发出的元音样本，发现在一个八度范围内，随着测试音高水平的提高，元音SNL和元音粗糙度感知均降低。对于四个受试者组中的每一组，嗓音音高与元音粗糙度或SNL之间的关系接近线性。
