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在阐明多媒体教室无线话筒系统准用的频段和频率的选择及基本工作原理的基础上,对无线话筒发射端、接收端出现的失真大和较低的输出信噪比问题,进行重新设计,以解决话音稳定清晰问题。
On the basis of clarifying the selection of the frequency band and frequency of quasi-use for the multimedia classroom wireless microphone system and the basic working principle, the problems of large and low output signal-to-noise ratio at the transmitting end and the receiving end of the wireless microphone are redesigned to solve Voice stable and clear problem.