论文部分内容阅读
无线话筒又叫无线传声器,它常由小型话筒极头、发射机和接收机三个部分组成。话筒极头常与发射机部分做成一体式,佩戴在演员身上。演员讲话时,话简极头将声音转换成电信号,发射机再将这个电信号调制在一个载频上通过施尾天线发射出去。接收机收到信号以后,经过放大、解调,还原成原来的音频信号,送入调音台(或前置放大器)与有线话筒信号混合,再经前置放大和主放大器后由助音箱播出。本文仅谈谈无线话筒在舞台上使用时的一些问题。
Wireless microphone, also known as wireless microphone, it often consists of a small microphone pole, transmitter and receiver composed of three parts. Microphone often made with the transmitter part of the pole, worn on the performer. When the actor speaks, the voice of the speaker converts the sound into an electrical signal, and the transmitter modulates the electrical signal on a carrier frequency to be transmitted through the tailing antenna. Receiver receives the signal, after amplification, demodulation, restore the original audio signal into the mixer (or preamplifier) and wired microphone signal mixing, and then pre-amplification and main amplifier by the speaker broadcast Out This article only talks about some issues when using wireless microphones on the stage.