面向目标的空间声重放声场及其心理声学问题的研究

面向目标的三维空间声是目前空间声的主要发展趋势，本项目将系统地开展面向目标空间声的重放声场及心理声学方面的研究工作。从合成三维空间听觉感知的心理声学原理入手，研究多通路三维空间声的声场与听觉性能的综合分析方法、扬声器布置与信号馈给、声场参数元数据的获取， 动态双耳合成信号处理的简化等内容。项目的目的是解决目前国际上研究所存在的问题， 在此基础上, 研究出家用和便携式播放设备应用的面向目标的三维空间声系统系列， 使其综合的感知性能较现有系统有明显的提高。项目研究不但对空间听觉感知的科学研究有较大的意义, 更主要的是可以在三维空间声方面发展出具有自主知识产权的前沿技术, 在家用与便携式播放设备方面有重大的应用前景, 对相关产业的发展具有重大的意义, 带来经济和社会效益。

Object-based and three dimension spatial sound is a major tendency in spatial sound. The reproduced sound field and related psychoacoustic problems in object-based and three dimension spatial sound will be studied in this projected. From the psychoacoustic principle of summing auditory perception in three dimensional space, some key problems in spatial sound will be investigated, including the comprehensive analysis methods for spatial sound field and perception, arrangements and signals of loudspeakers, obtaining metadata of sound field, simplifying signal processing for dynamic binaural synthesis, etc. The aims of project are to address the problems in previous studies, and then develop a series of spatial sound systems for domestic and portable uses and with obviously improved performance. The studies in this project will not only be important to the scientific researches in spatial auditory perceptions, but also be vital to developing the advanced techniques of spatial sound with proprietary intellectual property rights. These techniques will be applicable to domestic and portable sound reproduction, bringing potential economic and social benefits.