D62 series audio conference system supports functions such as check-in, vote, camera tracking, automatic inspection and data management. On the controller, the user may set any unit as a VIP unit. The system allows automatic or manual inspection to the microphone, speaker, buttons, LED lights and screen on the conference units. The controller has a Digital Signal Processor (DSP) which provides several EQ modes, so that the user can select the desired one in accordance with the conference situations. In addition, the controller also provides frequency shifters, which can effectively reduce the howl back; the audio input/output ports and breaking-in of warning signals can extend the broadcasting functions; the limitation of spokesman and timed speech function can help to manage good order at the conference venue; the four camera ports allows connection to four cameras to realize tracking functions. In all, the conference room audio systems very powerful, highly integrated and has very simply system architecture, and it is easy wire and provides visualized operation and message display in Chinese and English, so it becomes an ideal choice for audio system of high-end conferences.