An information processing method is disclosed for use with an information processing apparatus for acquiring data and executing signal processing on the data. The method includes the steps of: acquiring information necessary for executing the signal processing on the data; determining whether a certain parameter included in the information acquired in the information acquiring step is changed; if the parameter is found changed in the determining step, then controlling recording of setting information for the signal processing; discarding execution status settings of a signal processing program called up to execute the signal processing; calling up again the signal processing program; initializing, using the changed parameter, the signal processing program called up in the program calling step; reading out the setting information of which the recording was controlled in the setting information recording controlling step; and resetting the signal processing program based on the setting information read out in the setting information reading step.