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Audio-only游戏中虚拟声的HRTF匹配与压缩技术研究

, PP. 62-67

Keywords: HRTF,PCA,数据压缩,个性化匹配

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Abstract:

Audio-only游戏中,游戏者的所有操作只能依靠虚拟声所包含的空间信息实现声像定位,因此对虚拟声的准确性和实时性有较高的要求.本研究基于HRTF的虚拟声基本原理,比较了HRTF的个性化匹配和压缩方法,并利用PCA技术对CI-PIC和MIT实验室的HRTF数据进行压缩与重建处理,实验证明该技术具有计算快速简单和处理效果好的优点,同时压缩重建前后的HRTF数据具有较小误差,既不影响虚拟声重发的准确性,又减少了HRTF的存储空间,能有效降低HRTF合成的计算复杂度,提高虚拟声应用的实时性.

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