Temporal resolution of hearing probed by bandwidth restriction
Temporal resolution of hearing probed by bandwidth restriction
复制标题
通过带宽限制探测听力的时间分辨率
DOI：
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发表时间：
2008
期刊：
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通讯作者：
M. Kunchur
中科院分区：
文献类型：
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作者：
M. Kunchur
本文通过对周期信号进行低通滤波的时间常数的判别，研究了人耳听觉的时间分辨力。虽然限制带宽会影响信号的幅度谱和时间定义，但本实验中的直接幅度变化低于其可察觉的差异。因此，歧视似乎是敏感的相位，除了频谱振幅差异。阈值时间常数的上限为T = 5 μs，表明人类的时间分辨率向下延伸到比过去发现的更短的时间尺度。
This work investigates the temporal resolution of human hearing through its discrimination of the time constant of low-pass filtering applied to a periodic signal. While restricting the bandwidth affects both the amplitude spectrum and temporal definition of the signal, the direct amplitude changes in this experiment fall below their just noticeable differences. The discrimination therefore seems to be sensitive to phase in addition to spectral amplitude differences. An upperbound of T ≈ 5 μs was obtained for the threshold time constant, showing that human temporal resolution extends down to time scales shorter than found in the past.