舞台扬声器系统指向性声场控制方法研究

Research and Discussion on the Control Method of the Acoustic Field in the Stage Speaker System

介绍国家科技支撑计划项目(编号:2012BAH38F00)中子课题(编号:2012BAH38F01-03)关于舞台扬声器系统指向性声场控制问题的研发情况。从理论上总结阵列扬声器阵列指向性角度改变和控制方法,并具体针对舞台上使用的声阵列情况,研究、探讨指向性角度改变控制方法。实测数据表明,舞台阵列扬声器系统当中通过改变单个扬声器系统时间延迟,可以实现一定的指向性角度的改变。

In this paper, the author introduces the research and development of the 2012BAH38F00 （2012BAH38F01-03） on the control method of the acoustic field in the stage speaker system. In this way, the method to change and control the angle of array loudspeaker array is summarized, and the research and discussion on the use of the acoustic array is presented. The measured data show that the time delay of the system of the array speaker system can be changed by the time delay of a single speaker system.