Two phase effects in roughness perception.
Two phase effects in roughness perception.
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DOI：
10.1121/1.426894
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发表时间：
1999-04
期刊：
影响因子：
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通讯作者：
Daniel Pressnitzer;Stephen McAdams
中科院分区：
文献类型：
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作者：
Daniel Pressnitzer;Stephen McAdams
光谱和时间方面的声音在粗糙度感知各自的影响进行了检查，通过相位操作的方式。在第一个实验中，对于给定的幅度谱，无论是否修改波形包络线，三分量信号的中心分量的相位都会改变感知到的粗糙度。第二个实验表明，对于给定的振幅谱和给定的调制深度，波形包络线的形状也会影响感知到的粗糙度。我们通过考虑外部听觉处理从物理信号中推断出的内部表征的包络来解释这两个结果。结果表明，这种内部表示的调制深度不是粗糙度的唯一决定因素，但时间不对称的影响也要考虑在内。
The respective influences of spectral and temporal aspects of sound in roughness perception are examined by way of phase manipulations. In a first experiment, the phase of the central component of three-component signals is shown to modify perceived roughness, for a given amplitude spectrum, regardless of whether it modifies the waveform envelope. A second experiment shows that the shape of the waveform envelope, for a given amplitude spectrum and a given modulation depth, also influences perceived roughness. We interpret both of these results by considering the envelope of an internal representation that is deduced from the physical signal by taking into account peripheral auditory processing. The results indicate that the modulation depth of such an internal representation is not the only determinant of roughness, but that an effect of temporal asymmetry is also to be taken into account.