To facilitate generation of a broadcast program for a business broadcast system.

In the case of generating a broadcast program for the business broadcast system where a channel control section selects any prescribed device of input devices respectively connected to input contacts and any prescribed device of out put devices respectively connected to output contacts and connects the selected devices so as to broadcast a voice signal, which is received from the prescribed input device, from the prescribed output device, contact groups related to each event included in each broadcast program among the input and output contacts are grouped while the priority of connection information is set and designating an event in each program automatically describes a make/remake state of the grouped contact group corresponding to the event.