| 摘要 |
PROBLEM TO BE SOLVED: To provide a mixing system, by which a person in charge of sound can inspect a line of microphone even by himself and also can inspect the line of microphone, even in actual telecast or in performance. SOLUTION: A detection signal generated by a detection signal generator 11 is collected by a normal voice signal by a diaphragm film 12, and is inputted into a voice table 2 through a microphone line 3. A microphone line detecting section 21 of the voice table 21 has a preset signal identical to the detecting signal, determines whether or not an inputted signal contains this signal and displays the result on a line state display section 22. The inputted signal is subjected to a determining processing and an ultrasonic part (detecting signal included) is removed by a detection signal removing section 23, only the normal voice signal is inputted into a signal control circuit 24, a level is set on the inputted signal, and the inputted signal is transmitted through a transmission line 4.
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