Signal processing method and signal processing device

A signal processing device comprising:

• a sound signal input configured to input a sound signal;
• a signal processor configured to input the sound signal to a plurality of signal processing blocks for different types of signal processing, and signal-process the sound signal input to the signal processing blocks based on setting data having a plurality of parameters for the different types of signal processing, respectively;
• a user operable input configured to receive a parameter operation for setting at least one of the parameters;
• and
• an electronic controller including at least one processor, the electronic controller being configured to execute a plurality of units that include
• a parameter selection unit configured to set at least one indicator for the at least one of the parameters, respectively, in response to the user operable input receiving the parameter operation for the at least one of the parameters, and update the setting data based on the parameter operation, and
• a deployment processing unit configured to read out only the at least one of the parameters to which the at least one indicator is set while a remainder of the parameters is not read out, and deploy the at least one of the parameters that has been read out to at least one of the signal processing blocks corresponding to the at least one of the parameters that has been read out, in response to reception of a recall operation for reading out the setting data.