基于姿态感知的声场还原算法研究  

Research of sound field restoration algorithm based on head pose perception

作　　者：王薇娜 董强国 Wang Weina;Dong Qiangguo(China Research Institute of Film Science and Technology(Test Institute of Film Technical Quality))

机构地区：[1]中国电影科学技术研究所(中央宣传部电影技术质量检测所),北京100086

出　　处：《现代电影技术》2022年第5期24-29,37,共7页Advanced Motion Picture Technology

基　　金：中国电影科学技术研究所基本科研业务费项目《基于交互感知技术的还音单元应用研究》(2021-DKS-2)。

摘　　要：在用耳机观影时,音源位置会随人头姿态改变而变化,这与真实环境下的听觉效果不同。本文通过将人体姿态变化转化为虚拟音源的位置变化,利用HRTF函数重建音频的虚拟声像,实现对耳机姿态感知的音频反馈。另一方面结合空间声场的特点对音频进行特定空间声场渲染,最终实现通过耳机播放音频实现空间音频的头部追踪效果,使用户获得更好的沉浸感与交互感。Usually,the position of the virtual audio source changes with your head movement when using headphones, which is different from the auditory effect in real environment. In this study, we use the HRTF to reconstruct the virtual sound image of audio by transforming the change of head movements into inverse movements of audio source, implementing the audio feedback of headphone posture perception. On the other hand, we render the audio in headphones with specific spatial sound field model, which is created from actual studio measurements. Finally, we realise the head tracking effect of spatial audio through headphones, so that users can get better immersion and interaction.

关 键 词：姿态感知 空间声场 陀螺仪 HRTF RIR 

分 类 号：J933[艺术—电影电视艺术]