Abstract
Most current headphone-based spatial sound systems exploit head-related transfer functions (HRTFs) or motion-tracked binaural (MTB) sound for generating virtual acoustic environments. HRTF-based systems are appropriate for creating virtual acoustic spaces, whilst MTB-based systems are appropriate for reconstructing real acoustic spaces. Both systems require interpolation when rendering dynamic sound sources. In this paper, we present a binaural ambisonic system for virtual reality applications. Ambisonics was designed to reproduce plane waves coming from any direction, so interpolation was not needed in our system, a characteristic which makes the rotation of virtual acoustic space smooth and the computation cost-effective. Our proposed method is the hybrid system combining HRTFs and MTB sound to provide the powerful immersive communications that can cooperate with a virtual reality headset to achieve full 3D audio and video.
This work was partially supported by the Ministry of Science and Technology, Taiwan (Grant No. MOST 106-2221-E-305-009).
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Yao, SN., Yu, CY. (2019). Music4D: Audio Solution for Virtual Reality. In: Arai, K., Kapoor, S., Bhatia, R. (eds) Intelligent Computing. SAI 2018. Advances in Intelligent Systems and Computing, vol 857. Springer, Cham. https://doi.org/10.1007/978-3-030-01177-2_103
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DOI: https://doi.org/10.1007/978-3-030-01177-2_103
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