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本文提出了一种新型实用的乐器数字接口（MIDI）的光纤连接系统，用光纤替代电缆连接MIDI设备，解决了MIDI数字信号对音频信号的干扰问题，增加了MIDI信号的传送距离，指出了光纤在乐器数字接口连接方面有很好的应用前景。
In this paper, a new type of optical fiber connection system of musical instrument digital interface (MIDI) is proposed. Optical fiber is used instead of cable to connect MIDI equipment, which solves the problem of interference of MIDI digital signal to audio signal, increases the transmission distance of MIDI signal, In the instrument digital interface connection has a very good application prospects.