摘要
叙述了可控指向性声拄柱的产生背景与原因。即可用于高混响时间的空间,又不希望扬声器系统外形过大的地方。可控指向性声柱是利用电子计术、计算机技术、声学技术共同控制声柱的指向性。并且还可根据扩声房间声学特性进行调节。说明了如何通过延时、均衡、音量调节、相移调节等,使垂直平面波束变窄,指向角偏转,达到控制声柱指向性的目的。同时指出,可控指向性声柱,还可减少声反馈,提高扩声清晰度。
The reason to produce directional column loudspeakers is introduced. The directional column loudspeakers can be used in high reverberation time enviroment room. The electronic technique, computer technology, and the acoustic advanced software are utilized to control the directional and frequency response. And the modulation can be done based on room characteristics. Delay, equalization, sound volume, and phase adjustment are considered to create narrow vertical beams, angle deflection, and directional. The directional column loudspeakers can reduce the acoustic feedback to improve sound reinforcement clarity.
出处
《电声技术》
2010年第6期17-23,共7页
Audio Engineering
关键词
可控指向性
声柱
线阵列扬声器系统
线性声源
controllable direction
column loudspeaker
line array
loudspeaker system
audio source of line array
