Patent ID: 8498432

Claim:
A digital mixer comprising: two mixing buses that respectively mix audio signals supplied from a plurality of input channels; a designating device that designates either of monaural or stereo as a bus type of said two mixing buses; a current memory that stores values of parameters corresponding to the bus type designated by the designating device, for each of said plurality of input channels; an editor that edits the value of the parameter stored in said current memory in response to an edit operation by a user; a plurality of level controllers, each of which is in each input channel of said plurality of input channels, and controls level of an audio signal inputted to the input channel based on the bus type designated by the designating device and the values of the parameters stored in the current memory for the input channel, and the audio signal after the control being supplied from the input channel to said two mixing buses; a library that stores a plurality of presets; a storing device that stores, in response to a store operation regarding one input channel and one preset by the user, the values of the parameters stored in the current memory for the one input channel and the bus type currently designated by the designating device, as the one preset into said library; and a recalling device that, in response to a recall operation regarding one input channel and one preset by the user, reads values of the parameters and the bus type of the one preset stored in the library, and a) if the bus type in the one preset coincides with the bus type designated by the designating device, writes the values of the parameters of the one preset into said current memory as the values of the parameters for the one input channel, and b) if the bus type of the one preset does not coincide with the bus type designated by the designating device, converts the values of the parameters of the one preset into values of the parameters corresponding to the bus type designated by the designating device and writes into said current memory as the values of the parameters for the one input channel.