Patent ID: 7920933

Claim:
A digital mixing system comprising a console, having a display and controls, for transmitting and receiving control data and sound data, and first and second engines, each having input channels and mixing buses, for conducting a mixing operation for mixing audio signals fed from the input channels while exchanging the control data of the mixing operation and the audio signals with the console and feeding the audio signals resulting from the mixing operation to the outside of the system, wherein the console comprises: a first set of connection terminals for communication with the first engine to transmit and receive the control data and the sound data with respect to the first engine; a second set of connection terminals for communication with the second engine to transmit and receive the control data and the sound data with respect to the second engine; a control section that transmits the control data concurrently to both of the first engine and the second engine to enable the first engine and the second engine to conduct the same mixing operation in parallel to each other; and a switch section that normally operates to enable the first engine to feed the audio signals resulting from the mixing operation to the outside of the system, and that operates when the first engine suffers from a malfunction for switching to the second engine and enabling the second engine to feed the audio signals resulting from the mixing operation to the outside of the system.