| 摘要: |
| 虚拟环境是用多种媒体构造的一个仿真视听等多方面感知效果的高级人机界面．本文提出全面表达声音时空信息的思想，讨论了用有限个音箱表现任意空间声的时间真实感和空间真实感．通过对声音空间感实质的分析，提出了基于三维空间向量分析的真实感空间声合成算法和基于限时计算的系统实现方法．与基于双耳相关函数的空间声合成方法相比，本方法能在较少的计算时间内合成更真实的空闽声． |
| 关键词: 虚拟环境，空间声，时间真实感,空间真实感，限时计算． |
| DOI： |
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| 基金项目:本文研究得到国家自然科学项目基金资助. |
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| REALISTIC SPATIAL SOUND RENDERING IN VIRTUAL ENVIRONMENT |
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Zhang Aidong,Shi Jiaoying,Pan Zhigeng
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| Abstract: |
| Virtual environment ia an advanced human—computer interface which use multiple media to generate human'S visual and auditory effects．A concept of overall repre-senting temporal and spatial information of sound was provided in this paper．Infinite loudspeakers were addressed in 3D space to represent temporal reality and spatial reality of a sound from any spatial direction．With discussing the essence of spatial sound，a realistic spatial sound rendering algorithm based on 3D vector analysis and a system implements-tion based on time—critical computation were provided．Comparing with traditional three —dimension sound synthesis method based on HRTF,this method required less computa-tion to generate more realistic sounds， |
| Key words: Virtual environment,spatial sound,temporal reality,spatial reality,time—critical computation． |
