Auditory parallax effects in the HRTF for nearby sources
Auditory parallax effects in the HRTF for nearby sources
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HRTF 中附近声源的听觉视差效应
DOI：
10.1109/aspaa.1999.810877
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
D. Brungart
中科院分区：
文献类型：
--
作者：
D. Brungart
当声源靠近时，声源相对于头部中心的角度可以与声源相对于耳朵的角度基本上不同。由于已知HRTF（头部相关传递函数）的高频特征取决于源相对于耳朵的角度，因此该“声学视差”应产生远场同侧HRTF中的高频特征到近场HRTF中的更横向位置的系统重新映射。在声学假人上测量的HRTF表明，这种类型的重新映射确实发生在近场，并且当源距离耳朵超过5 cm时，耳廓的频率响应大致与距离无关。声学视差效应的感知相关性进行了简要讨论，沿着其潜在的应用近场虚拟音频显示。
When a sound source is close, the angle of the source relative to the center of the head can differ substantially from the angle of the source relative to the ear. Since the high-frequency features of the HRTF (head related transfer function) are known to depend on angle of the source relative to the ear, this "acoustic parallax" should produce a systematic remapping of high-frequency features in the far-field ipsilateral HRTF to more lateral locations in the near-field HRTF. HRTFs measured on an acoustic manikin indicate that this type of remapping does occur in the near field, and that the frequency response of the pinna is roughly independent of distance when the source is more than 5 cm from the ear. The perceptual relevance of the acoustic parallax effect is briefly discussed, along with its potential application to near-field virtual audio displays.