| 摘要 |
PROBLEM TO BE SOLVED: To reduce restrictions concerning port usage to improve the convenience.SOLUTION: An I/O unit 20 comprises a plurality of ports. A mixer 10 comprises a processing channel. The mixer 10 and the I/O unit 20 are connected with each other by a network 30. The mixer 10 stores channel data 50 for each processing channel. The channel data 50 includes virtual port data 56 for indirectly controlling signal processing and the like of the port to which the channel is patched. The I/O unit 20 stores an actual port data 60 for controlling signal processing at the corresponding port, for each port. One port and the processing channel are connected by wires depending on a wire connection instruction (S1, S5, S9, and S14), and a value of the virtual port data 56 held so as to correspond to the processing channel is set to the actual port data 60 of the one port connected with the processing channel by wires (S4, S6, S8, and S13). |
