Loud speech over noise:: Some spectral attributes, with gender differences
Loud speech over noise:: Some spectral attributes, with gender differences
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DOI：
10.1121/1.2161435
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发表时间：
2006-03-01
影响因子：
2.4
通讯作者：
Södersten, M
中科院分区：
文献类型：
--
作者：
Ternström, S;Bohman, M;Södersten, M
在寻求超负荷的声音的声学描述，模拟环境噪声被用来引起大声讲话。共有23名成年人，12名女性和11名男性，在扬声器上呈现的真实噪音下阅读90秒持续时间的六段。噪声被抵消，使语音信号暴露于分析。频谱平衡（SB）被定义为2-6 kHz频带相对于0.1-1 kHz频带的水平。如文献所述，在许多相似的元音段上平均的SB随着声压级（SPL）的增加而变得不那么负，但仅在中等SPL下。在高SPL下，SB表现出个人“饱和”点，高于该点，高频带水平不再比总体SPL增加得更快，或者甚至完全停止增加，女性平均为90.3 dB（W（cm）），男性为95.5 dB。饱和度为6-8 dB;低于个人最大SPL，不分性别。最响亮的作品往往以低频能量的相对增加为特征，显然是在尖锐的第一共振峰中。这表明当高频谱不能再上升时，发声策略发生了变化。SB伴SPL的进展在个体受试者中具有特征性差异。(c)2006年，美国声学学会。
In seeking an acoustic description of overloaded voice, simulated environmental noise was used to elicit loud speech. A total of 23 adults, 12 females and 11 males, read six passages of 90 s duration, over realistic noise presented over loudspeakers. The noise was canceled out, exposing the speech signal to analysis. Spectrum balance (SB) was defined as the level of the 2-6 kHz band relative to the 0.1-1 kHz band. SB averaged across many similar vowel segments became less negative with increasing sound pressure level (SPL), as described in the literature, but only at moderate SPL. At high SPL, SB exhibited a personal "saturation" point, above which the high-band level no longer increased faster than the overall SPL, or even stopped increasing altogether, on average at 90.3 dB WO cm) for females and 95.5 dB for males. Saturation occurred 6-8 dB; below the personal maximum SPL, regardless of gender. The loudest productions were often characterized by a relative increase in low-frequency energy, apparently in a sharpened first formant. This suggests a change of vocal strategy when the high spectrum can rise no further. The progression of SB with SPL was characteristically different for individual subjects. (c) 2006 Acoustical Society of America.