| 摘要 |
PURPOSE: A microphone system for a conference being connected through the Ethernet is provided to constitute complex facilities to be simple by connecting a microphone system for a conference through Ethernet with one cable. CONSTITUTION: A control microphone unit(100) includes a microphone changing a voice signal inputted from the outside into an electric signal and an amplifier(120) amplifying audio data transformed to the electric signal from an microphone. The control microphone unit includes an A/D(Analog to Digital) converter(130) changing the audio data of an analog type from the amplifier into digital audio data. The control microphone unit includes a D/A(Digital to Analog) converter(140) changing the digital audio data into the audio data of the analog type and a line output part(150) transmitting the audio data of the analog type from the D/A converter to the outside. The control microphone unit includes the microphone, the line output part, the A/D converter, and a first control part(160) controlling the D/A converter. |
