Three-Dimensional Acoustic Simulation Based on Virtual Environments

摘要

In order to enhance fidelity and reduce confusion through compensation of vision, it is necessary to investigate three-dimensional acoustic simulation over headphones based on virtual environments. Localization cues that can provide positional information such as head-related transfer function, in-teraural time difference, and interaural intensity difference, play an important role in three-dimensional acoustic simulation. Audio signal processing based on wavelet transform and Huffman encoding reduces data storage and transmission to meet lower bit rate requirements in interactive environments. Visual and aural fusion through a synchronic control mechanism make acoustic simulation environments closer to the natural world to achieve the goal of three-dimensional acoustic simulation based on virtual environments. Psychoacoustic tests of acoustic simulation based on virtual environments demonstrate that this simulation method is efficient and reliable.