Dependence of loudness growth on skirts of excitation patterns
Dependence of loudness growth on skirts of excitation patterns
复制标题
响度增长对激励模式裙边的依赖性
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
R. Hellman
中科院分区：
文献类型：
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作者：
R. Hellman
在50 dB的范围内，在存在低频截止频率为200 Hz的宽带噪声的情况下测量100 Hz音调的响度。噪声的强度随音调沿着变化，因此信噪比保持恒定在0或−10 dB。听众通过响度匹配、幅度估计和幅度产生来判断音调的响度。噪声显著降低了音调的响度增长率，但没有降低响度增长的范围。100-Hz响度函数的陡度整体下降幅度大于先前在更高频率下报告的幅度。据推测，下降幅度更大是因为100 Hz时的激励传播比更高频率时更有效。支持这一假设的措施，在100赫兹的强度歧视。
Over a range of 50 dB, the loudness of a 100‐Hz tone was measured in the presence of a broadband noise with a low‐frequency cutoff at 200 Hz. The noise was varied in intensity along with the tone so that the signal‐to‐noise ratio remained constant at either 0 or −10 dB. Listeners judged the loudness of the tone by loudness matching, magnitude estimation, and magnitude production. The noise markedly decreased the tone’s rate of loudness growth but not the range over which loudness grows. The overall decrease in steepness of the 100‐Hz loudness function was greater than that previously reported at higher frequencies. It is hypothesized that the decrease was greater because the spread of excitation at 100 Hz was more effectively contained than at higher frequencies. Support for this hypothesis is given by measures of intensity discrimination at 100 Hz.