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Sound image externalization for headphone based real-time 3D audio |
Yougen YUAN1( ), Lei XIE1(), Zhong-Hua FU1, Ming XU2, Qi CONG1 |
1. School of Computer Science, Northwestern Polytechnical University, Xi’an 710129, China
2. Chinese Aeronautical Radio Electronics Research Institute, Shanghai 200233, China |
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Abstract 3D audio effects can provide immersive auditory experience, but we often face the so-called in-head localization (IHL) problem in headphone sound reproduction. To address this problem, we propose an effective sound image externalization approach. Specifically, we consider several important factors related to sound propagation, which include image-source model based early reflections with distance decay, wall absorption and air absorption, late reverberation and other dynamic factors like head movement. We apply our sound image externalization approach to a headphone based real-time 3D audio system. Subjective listening tests show that the sound image externalization performance is significantly improved and the sound source direction is preserved as well. A/B preference test further shows that, as compared with a recent popular approach, the proposed approach is mostly preferred by the listeners.
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| Keywords
Keywords 3D audio
in-head localization (IHL)
headphone reproduction
sound image externalization
reflections
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Corresponding Author(s):
Lei XIE
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Just Accepted Date: 30 September 2016
Online First Date: 23 May 2017
Issue Date: 25 May 2017
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