Comodulation masking release as a function of bandwidth and test frequency.
Comodulation masking release as a function of bandwidth and test frequency.
复制标题
共调制掩蔽释放作为带宽和测试频率的函数。
DOI：
10.1121/1.399956
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
J. Grose
中科院分区：
文献类型：
--
作者：
Mark Haggard;Joseph W. Hall;J. Grose
Comodulation masking release (CMR) was investigated as a function of signal frequency (0.5-4.0 kHz) and the total bandwidth of noise centered on the signal frequency. Taking noncomodulated noise of the same bandwidth as the reference condition, CMR for modulated noise increased with increasing bandwidth of the flanking noise outside the critical band centered on the signal tone; however, this growth asymptoted for broad total bandwidths. These bandwidth effects were expressed by scaling the width of the flanking bands beyond the critical band centered on the signal frequency, approximately according to a critical bandwidth scale. After this scaling, signal frequency had negligible effect on CMR magnitude. For the low modulation frequencies involved, a beneficial effect on CMR at high carrier frequencies would not be expected, and none was observed. Some further trends in the masked thresholds in comodulated and noncomodulated conditions, and the choice of appropriate reference condition are discussed.
