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Wireless microphone and / or in-ear monitoring system and method of controlling wireless microphone and / or in-ear monitoring system

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

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.
机译:提供了至少一个用于无线传输第一音频信号(UL)的第一移动设备(MT),特别是具有无线麦克风和/或无线麦克风的入耳式监控系统。该系统还具有至少一个基站,用于无线接收由至少一个移动设备(MT)发送的第一音频信号(UL)。无线传输基于TDMA时隙中的正交频分复用传输(OFDM)。每个无线麦克风在2毫秒内至少占用一个插槽。每个TDMA帧都有多个时隙,每个时隙都有一个OFDM符号。因此,在每个TDMA时隙中恰好发送一个OFDM符号。在根据TDMA可用的时隙期间,基于OFDM方法执行传输。 TDMA帧长度很短,因为在专业音频传输中,例如在无线麦克风系统的情况下,要求等待时间小于4 ms。

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