Patent ID: 7929719

Claim:
An audio signal processing apparatus for processing audio signals, comprising: an operator device to be operated by a human operator; a memory that stores a parameter for each of n channels (n is a positive integer); a signal processor that processes the audio signals via the plurality of channels to control the characteristic of the audio signals, the audio signal of each channel being processed based on the parameter for the channel stored in said memory; a selector that selects one of first and second combining modes; a setting section that sets either a stereo mode in which an interlock is enabled or a monaural mode in which the interlock is disabled; and a parameter change section that, in response to an operation on the operator device by the human operator, (1) changes a value of the parameter of k-th channel (where k is a positive integer) in said memory if said setting section sets the monaural mode, (2) changes a value of the parameter of k-th channel and a value of the parameter of (k+1)th channels (where 1≦k and k+1≦n) in said memory if said selector selects the first combining mode and said setting section sets the stereo mode, and (3) changes a value of the parameter of k-th channel and a value of the parameter of (k+m)th channels (where m is a positive integer greater than or equal to 2, 1≦k and k+m≦n) in said memory if said selector selects the second combining mode and said setting section sets the stereo mode.