Florentine M, Buus S, Bonding P
J Acoust Soc Am. 1978 Oct;64(4):1036-40. doi: 10.1121/1.382062.
The purpose of this study was twofold: to determine if the measured loudness level of a signal depends on the standard stimulus used and to measure loudness as a function of the number of components in a wide-band signal. The stimuli were a pure tone, tone complexes with frequency separations of 231 and 1592 Hz, and noise bands with widths of 220 and 1592 Hz. The center frequency was 1 kHz and the loudness level was approximately 65 phons. Loudness matches between all combinations of stimuli showed that the measured loudness of the sounds did not depend on the standard stimulus used and the measured loudness level of a wide-band sound increased as a function of the number of components. Individual observers were consistent in their loudness estimations; the greatest source of variability was among subjects. Additional measurements indicated that the rate at which loudness increased beyond the critical band appeared to be greater for noise bands that for two-tone complexes.
确定信号的测量响度水平是否取决于所使用的标准刺激，并测量响度作为宽带信号中分量数量的函数。刺激包括一个纯音、频率间隔为231和1592 Hz的音调复合体，以及带宽为220和1592 Hz的噪声带。中心频率为1 kHz，响度水平约为65方。刺激的所有组合之间的响度匹配表明，声音的测量响度不取决于所使用的标准刺激，并且宽带声音的测量响度水平随着分量数量的增加而增加。个体观察者在响度估计上是一致的；最大的变异性来源在于受试者之间。额外的测量表明，对于噪声带来说，响度超过临界带宽增加的速率似乎比双音复合体更大。
