Hillenbrand J, Cleveland R A, Erickson R L
Department of Speech Pathology and Audiology, Western Michigan University, Kalamazoo.
J Speech Hear Res. 1994 Aug;37(4):769-78. doi: 10.1044/jshr.3704.769.
The purpose of this study was to evaluate the effectiveness of several acoustic measures in predicting breathiness ratings. Recordings were made of eight normal men and seven normal women producing normally phonated, moderately breathy, and very breathy sustained vowels. Twenty listeners rated the degree of breathiness using a direct magnitude estimation procedure. Acoustic measures were made of: (a) signal periodicity, (b) first harmonic amplitude, and (c) spectral tilt. Periodicity measures provided the most accurate predictions of perceived breathiness, accounting for approximately 80% of the variance in breathiness ratings. The relative amplitude of the first harmonic correlated moderately with breathiness ratings, and two measures of spectral tilt correlated weakly with perceived breathiness.
本研究的目的是评估几种声学指标在预测呼吸声评级方面的有效性。对8名正常男性和7名正常女性进行录音，他们发出正常发声、中度呼吸声和非常呼吸声的持续元音。20名听众使用直接量级估计程序对呼吸声程度进行评级。进行了以下声学测量：(a)信号周期性，(b)基波振幅，以及(c)频谱倾斜度。周期性测量对感知到的呼吸声提供了最准确的预测，约占呼吸声评级方差的80%。基波的相对振幅与呼吸声评级中度相关，频谱倾斜度的两项测量与感知到的呼吸声弱相关。
