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Wireless microphone and / or in-ear monitoring system and method of controlling wireless microphone and / or in-ear monitoring system
Wireless microphone and / or in-ear monitoring system and method of controlling wireless microphone and / or in-ear monitoring system
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机译:无线麦克风和/或入耳式监控系统以及控制无线麦克风和/或入耳式监控系统的方法
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摘要
At least one first mobile device (MT) for wirelessly transmitting a first audio signal (UL) is provided, in particular an in-ear monitoring system with a wireless microphone and / or a wireless microphone. The system also has at least one base station for wirelessly receiving a first audio signal (UL) transmitted by at least one mobile device (MT). Wireless transmission is based on orthogonal frequency division multiplexed transmission (OFDM) during a TDMA time slot. Each wireless microphone occupies at least one slot within 2 ms. Each TDMA frame has a plurality of slots, each with exactly one OFDM symbol. Thus, exactly one OFDM symbol is transmitted in each TDMA slot. During the time slots made available according to TDMA, transmission is performed based on the OFDM method. The TDMA frame length is short because in professional audio transmissions, for example, in the case of wireless microphone systems, latency of less than 4 ms is required.
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