VIDEO MIXER, AUDIO MIXER AND MECHANICAL A/V UNIT-INTEGRATED ELECTRONIC CONTROL APPARATUS

摘要

PURPOSE: A video mixer, an audio mixer and a mechanical A/V unit-integrated electronic control apparatus is provided to reduce the number of equipments in a broadcast room and easily operate a broadcast system by mounting a control program in a computer and operating the broadcast system in a GUI environment. CONSTITUTION: A video amplifier(41) receives an image signal from an A/V unit. A video matrix(42) selects an output from an image received from the video amplifier(41). An image for dividing a screen is connected to a video mixer(43), an image that does not need to be divided is connected to a line buffer(44), an output of the video mixer(43) is connected to a line buffer(44), and an output terminal of the line buffer(44) is connected to a line out switch(45) determining a final output. An audio amplifier(21) receives a voice signal from an audio unit and a microphone. An output signal of the audio amplifier(21) is received and connected to an audio mixer(22) mixing or selecting a voice, an output terminal of the audio mixer(22) is connected to a volume controller(23), and an output terminal of the volume controller(23) is connected to the line buffer(44). A signal of the image transmitted from the video mixer(43) is connected to a character caption unit(12), and signals received from the video matrix(42) and the volume controller(23) are connected to an RF modulator(100). A computer(300) having a program for controlling a microcontroller(210) is installed to transmit a control signal to the microcontroller(210).