WIRELESS MICROPHONE EQUIPMENT

摘要

PURPOSE:To control a sound field and lighting by allowing the wireless microphone equipment to implement range finding together with sound communication. CONSTITUTION:The spread spectrum system (SS system) are adopted for the transmission system of a wireless microphone transmitter 111, plural receivers 10-110 are used to obtain position information of the wireless microphone by using the synchronization of a spread code in an SS signal with a central processing unit 117, and a sound field controller 112 and a direction controller 118 control the sound field of speakers 113-116 and the lighting of a spot light 119 based on the obtained position information.