Glasberg B R, Moore B C
J Acoust Soc Am. 1982 Apr;71(4):946-9. doi: 10.1121/1.387575.
Thresholds were measured for 1-kHz, 5-ms sinusoidal signals following noise maskers with a spectral notch of variable width centered at 1 kHz. In one set of conditions threshold was measured as a function of notch width for three fixed noise levels: 30, 40, and 50 dB SPL/Hz. In order to compensate for the decay of masking, each signal threshold was transformed to the level of a flat-spectrum noise which would give the same masking effect. In a second set of conditions the noise level required for threshold was measured as a function of notch width for three fixed signal levels, separated by 5 dB. The auditory filters derived from the data were essentially the same for the two sets of conditions, and did not vary significantly with masker or signal level. The filters had a mean 3-dB bandwidth of 90 Hz.
在以1 kHz为中心、宽度可变的频谱陷波噪声掩蔽器之后，测量了1 kHz、5 ms正弦信号的阈值。在一组条件下，针对三种固定噪声水平（30、40和50 dB SPL/Hz），测量阈值作为陷波宽度的函数。为了补偿掩蔽的衰减，将每个信号阈值转换为具有相同掩蔽效果的平坦频谱噪声的水平。在第二组条件下，针对三个相差5 dB的固定信号水平，测量达到阈值所需的噪声水平作为陷波宽度的函数。从这两组条件的数据得出的听觉滤波器基本相同，并且不会随掩蔽器或信号水平而显著变化。这些滤波器的平均3 dB带宽为90 Hz。
