HCS-8300 Series Paperless Multimedia Congress System based on TAIDEN originated CongressMatrix technology, embedding an n×8 audio matrix processor (n is the number of microphones connected in the system) in the Congress Main Unit which enables connection to a multi channel independent PA system (up to 8 channels). Connectable to a multi channel independent PA system (up to 8 channels). Each channel is supplied with its proper audio signal. The audio signal of each microphone can be routed to any speaker at any ratio, thus “N-1” function can be realized easily: (when the microphone in one area is turned on, its audio signal is only routed to all areas except to its own) avoiding acoustic feedback (howl) when audio transmission gain is increased. HCS-8300 application software is comprehensive, reliable and user-friendly. But it is also an easy care software system which helps the operator to manage the conference efficiently from the very beginning of a meeting until the post-meeting work. With the PC installed HCS-8300 application software connected into the Fully Digital Conference System (FDCS), the operator can manage all aspects of the conference centrally. The operation turns out to be easy and efficient.