Empirical Evaluation of Calibration and Long-term Carryover Effects of Reverberation on Egocentric Auditory Depth Perception in VR
Empirical Evaluation of Calibration and Long-term Carryover Effects of Reverberation on Egocentric Auditory Depth Perception in VR
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DOI：
10.1109/vr51125.2022.00042
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发表时间：
2022-03
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影响因子：
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通讯作者：
Wan-Yi Lin;Ying-Chu Wang;D. Wu;R. Venkatakrishnan;Roshan Venkatakrishnan;Elham Ebrahimi;C. Pagano;Sabarish V. Babu;Wen-Chieh Lin
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作者：
Wan-Yi Lin;Ying-Chu Wang;D. Wu;R. Venkatakrishnan;Roshan Venkatakrishnan;Elham Ebrahimi;C. Pagano;Sabarish V. Babu;Wen-Chieh Lin
距离压缩是指低估以自我为中心的物体距离，是沉浸式虚拟环境中常见的问题。除了视觉补偿压缩的距离，一些研究表明，听觉信息可以是这个问题的另一种解决方案。特别是，混响时间（RT）已被证明是一种有效的方法来补偿距离压缩。为了进一步探索应用音频信息来改善距离感知的可行性，我们研究了用户的自我中心距离感知是否可以被校准，以及校准后的效果是否可以延续甚至持续更长的时间。我们进行了一项研究，以了解知觉学习和结转的影响，通过使用RT作为刺激，用户感知的距离在伊韦斯。实验结果表明，校准后的混响时间存在一定的传递效应，表明人们可以通过调谐混响时间来学习距离感知，并且在校准后的6个月内，准确度仍然保持在一个恒定的水平。我们的研究结果可能被用来改善VR系统中的距离感知，因为VR中听觉距离感知的校准可以持续数月。这最终可以避免频繁训练方案的负担。
Distance compression, which refers to the underestimation of ego-centric distance to objects, is a common problem in immersive virtual environments. Besides visually compensating the compressed distance, several studies have shown that auditory information can be an alternative solution for this problem. In particular, reverberation time (RT) has been proven to be an effective method to compensate distance compression. To further explore the feasibility of applying audio information to improve distance perception, we investigate whether users’ egocentric distance perception can be calibrated, and whether the calibrated effect can be carried over and even sustain for a longer duration. We conducted a study to understand the perceptual learning and carryover effects by using RT as stimuli for users to perceive distance in IVEs. The results show that the carryover effect exists after calibration, which indicates people can learn to perceive distances by attuning reverberation time, and the accuracy even remains a constant level after 6 months. Our findings could potentially be utilized to improve the distance perception in VR systems as the calibration of auditory distance perception in VR could sustain for several months. This could eventually avoid the burden of frequent training regimens.