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

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.