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Explain the working principle of the wireless microphone

Author:admin   AddTime:2021-07-03

The speed of wireless microphones is well known. In addition to stage performances, they are also widely used in KTV, conference rooms and other occasions. When most users use wireless microphones, they think that they can speak only by connecting the device. In fact, there are many techniques and precautions when using wireless microphones. If you don’t understand its operating principles and features, you can’t really use wireless. microphone.

Wireless microphones look very convenient, but you may not really know how to use wireless microphones. Wireless microphone, also called wireless microphone, consists of two parts: transmitting and receiving. In the meantime, the transmitting part is powered by a battery, and the microphone converts the sound into an audio signal. After processing by the internal circuit, the radio wave of the audio information can be transmitted to the surrounding space.



The receiving part is generally powered by a power source. First, the receiving antenna receives the radio wave emitted by the transmitting part, and then processes the internal circuit to extract the audio signal, and then transmits it to the amplification system through the output signal line to complete the wireless audio signal. transmission.

After understanding the working principle of wireless microphones, let’s talk about the issues that need to be paid attention to when using wireless microphones. The output impedance of the wireless microphone is the same as the input impedance of the amplifier. This is a good match. If the mismatch share exceeds 3:1, it will affect the audio transmission effect. Although it can be used, the high and low frequency sound will be obviously lost.

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