Wireless Conference Microphone
Wireless Conference Microphone is a conference microphone or conference terminal evolved from the wired one to the wireless one. The main frequency range of wireless conference microphones is varied: the most applied one is 2.4 GHz based on Wifi. 5.8GHz is also applied in wireless conference microphone communication systems.
The traditional conference microphone is connected to the control unit or PC with some cables to modularize the signal or encrypt it. The encryption technology of wireless conference systems is varied. AES is frequently applied to encrypt the signal communication between wireless conference microphones. AES is available in many different encryption packages, and is the first (and only) publicly accessible cipher approved by the National Security Agency (NSA) for top secret information.
The signal exchange and encryption between wireless conference microphones is based on the central control unit. The deployment of a wireless conference system does not require cables. Meanwhile, the wireless environment of the operation site is important for the wireless conference microphone. With co-channel distortion from mobile phones or other Wifi, the communication of the wireless conference microphone could be disturbed.
References
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