Weber D L
J Acoust Soc Am. 1978 Jul;64(1):141-50. doi: 10.1121/1.381979.
Band-limiting experiments were performed at three noise spectrum levels (N0 = 25, 40, and 55 dB SPL) for forward, simultaneous, and backward masking. Threshold for a 2-kHz sinusoid decreased for masker bandwidths greater than a "critical bandwidth" in nonsimultaneous masking. These results are evidence for a suppression effect not observed in simultaneous masking; however, a qualitative model of suppression can account for the results in all three types of masking. In addition, the data for simultaneous masking support Fletcher's [Rev. Mod. Phys. 12, 47--61 (1940)] rectangular filter interpretation of the band-limiting experiment and are well described by a level-dependent critical band.
在三种噪声频谱水平（N0 = 25、40和55 dB SPL）下进行了带限实验，用于前向掩蔽、同时掩蔽和后向掩蔽。在非同时掩蔽中，当掩蔽器带宽大于“临界带宽”时，2 kHz正弦波的阈值会降低。这些结果证明了在同时掩蔽中未观察到的抑制效应；然而，一种抑制的定性模型可以解释所有三种掩蔽类型的结果。此外，同时掩蔽的数据支持弗莱彻[《现代物理评论》12, 47 - 61 (1940)]对带限实验的矩形滤波器解释，并且用一个与电平相关的临界带能很好地描述。
