多区域声重放技术综述

An Overview of Multi-zone Sound Field Reproduction Technology

多区域声重放技术可以在同一个开放空间中形成声学明暗区,降低不同区域之间的干扰,听音者无需佩戴耳机,提高了听音的私密性和舒适度,近20年来该技术受到了广泛的关注。当前的多区域声重放研究主要分为能量控制和物理场匹配两大类,前者更注重明暗区的聚焦效果,而后者更关注声场的高精度重放。本文对多区域声重放的理论与应用研究现状进行了全面的阐述,并且介绍了该技术当前的主要研究热点。最后,我们对阻碍落地、限制其应用的一系列函待解决的问题进行了展望。

Multi-zone sound field reproduction technology creates acoustic bright and dark zones in an open space and reduces interference between different zones.It improves the audio privacy and comfort without need for listeners to wear headphones and received a lot of attention in the last 20 years.Current research on multi-zone sound field reproduction can be divided into two main categories:energy control and physical field matching.The former focuses more on acoustic contrast performance,while the latter is more concerned with the high-precision reproduction of the sound field.In this paper,the theoretical and applied research status of multi-zone sound field reproduction is comprehensively described,and the current main hotspots are also highlighted.