视听技术的声场分区重放方法研究  

Research on Audio-visual Technology for Multi-zone Sound Field Reproduction

作　　者：李秋霆 王鑫[2] Li Qiuting;Wang Xin(Radio,Film&TV Design and Research Institute,Convergence Media Laboratory for Public Information Service,NRTA,Beijing 100045,China;Communication University of China,School of Music and Recording Arts,Beijing 100024,China)

机构地区：[1]中广电广播电影电视设计研究院,基于融合媒体的公共服务信息共享平台国家广播电视总局实验室,北京100045 [2]中国传媒大学音乐与录音艺术学院,北京100024

出　　处：《广播与电视技术》2022年第7期50-54,共5页Radio & TV Broadcast Engineering

摘　　要：近年来视听技术发展迅速,大众对于个性化的需求不断增加,同一物理空间中的人同时访问不同的多媒体信息流,对于视频媒体来说易于实现,但对于音频信息流来说实现比较困难。因此,本文对基于正交基扩展的多区声场重放方法进行了深入研究,首先结合连续扬声器设置理论加入了不同的扬声器阵列类型进行仿真测试,然后在消声室进行声学实测实验,最后将实测与仿真结果作对比分析,综合讨论此方法的实用性并针对问题提出建议。In recent years,with the rapid development of audio-visual technology,the public’s demand for personalization is increasing.People in the same physical space can access different multimedia information streams simultaneously,which is easy to implement for video media,but it is difficult for audio information streams.Therefore,this paper researches on the multi-zone sound field reproduction based on orthogonal basis expansion.Firstly,according to the continuous loudspeaker concept theory,different types of speaker arrays were simulated for simulation tests.Secondly,the acoustic measurement experiments were performed in the anechoic chamber.Finally,the actual measurement and simulation results were compared and analyzed,and the performance and problems of this method in practical applications were discussed and suggestions were made for different problems.

关 键 词：视听技术 正交基扩展 多区声场重放 扬声器阵列 

分 类 号：G2[文化科学]