Patent ID: 7164772

Claim:
An apparatus for updating setting of at least one parameter which is set by an operation device so as to control an audio signal, the apparatus comprising: a holding section that holds a current value of the parameter effective to control the audio signal; a storing section that stores a plurality of scene data, each scene data comprising a set of setting values of parameters which are set by respective operation devices; a specifying section that reads out one of the scene data from the storing section and that specifies a setting value of at least one parameter contained in the read scene data; a determining section that determines a unit updating amount of the specified parameter for use in a manual update mode according to both of the current value of the specified parameter held in the holding section and the setting value of the specified parameter contained in the read scene data; and an updating section that includes a manual operation device operable in the manual update mode for inputting an operation amount, that computes an effective updating amount for the specified parameter according to the operation amount inputted by the manual operation device and the unit updating amount determined for the specified parameter, and that updates the current value of the specified parameter by the calculated effective updating amount toward the setting value of the specified parameter in response to the inputting of the operation amount by the manual operation device.