Patent ID: 7840016

Claim:
A sound control system comprising: a mixing unit which applies a mixing process to a plurality of sound signals input from a plurality of input systems, and outputs resultant signals to a plurality of output systems; a storing device which stores plural sets of detailed setting information to indicate setting states of respective parameters associated with the mixing process; and a simple control unit comprising a console panel physically separate from said mixing unit and in data communication with said mixing unit; wherein the simple control unit includes a plurality of operating pieces, an instruction transmitting unit which transmits an input calling instruction to the mixing unit when a calling instruction of a certain detailed setting information is input via any operating piece out of the plurality of operating pieces, and an assigning unit which receives an authorization parameter information corresponding to the calling instruction from the mixing unit, and assigning an parameter to the operating pieces based on the received authorization parameter information, and wherein the mixing unit and the mixing process are controlled by the respective parameters indicated in the certain detailed setting information, wherein the mixing unit includes a receiving unit which receives the calling instruction from the simple control unit, and a transmitting unit, responsive to authorization parameter identifying information which identifies a predetermined subset of respective parameters that the simple control unit is authorized to modify among the respective parameters indicated in the certain detailed setting information, for a) applying the authorization parameter identification information to restrict a plurality of parameters indicated in the certain detailed setting information and associated with the mixing process, and b) transmitting the authorization parameter identifying information to the simple control unit as the authorization parameter information wherein the mixing unit a) receives the authorization parameter identifying information and b) restricts operating a function of the simple control unit to only the authorization parameter identifying information, such that a user of the simple control unit is restricted from applying control parameters that are not among the predetermined subset.