摘要
分析了移频扩声系统的组成及主要特点,针对多媒体教室的扩声系统容易产生回声和啸叫等不足,提出了一种多媒体教室移频扩声系统的设计方案。该方案已经成功用于重庆工学院多媒体教室,有效地解决了声场产生声啸叫和多点拾音产生梳状频响失真问题。
The constitution and the features of frequency shift sound reinforcement are analyzed.The application to the multimedia classroom in Chongqing Institute of Technology is presented.It has solved the problems of howling in the sound field and the combing frequency response distortion caused by multi-point pickup.
出处
《电声技术》
北大核心
2004年第5期17-18,共2页
Audio Engineering
关键词
移频扩声
多媒体教室
啸叫
回声
多点拾音
梳状频响失真
frequency shift sound reinforcement
multimedia classroom
frequency shift sound amplifier
howling
pickup
