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虚拟现实(Virtual Reality)技术,即VR技术,以其交互性、沉浸性以及想象性三大特点,当前在工业、军事、医疗、教育等多种领域得到广泛的应用。VR的独特之处在于人—机—环境的多维信息交互,其中听觉信息起着重要的补充作用,VR要想获得最佳的体验必须结合VR全景语音,用户需要“真实”的声音。本文研究一种基于自适应波束形成和头相关传递函数(HRTF)联合的VR全景声场采集系统,初步设计具有阵列拾音器模块、波束形成和HRTF滤波模块、无线驱动和啸叫抑制模块及Web管理模块。
Virtual Reality technology, VR technology, is widely used in many fields such as industry, military, medical treatment and education with its three characteristics of interactivity, immersion and imagination. The uniqueness of VR lies in the human-machine-environment multi-dimensional information interaction, in which auditory information plays an important complementary role. VR needs to be combined with VR panoramic voice to get the best experience and users need “real” voice. In this paper, a VR panoramic sound field acquisition system based on the combination of adaptive beamforming and head-related transfer function (HRTF) is studied. An array pickup module, a beamforming and HRTF filtering module, a wireless driver and howling suppression module and a web management module .