Patent ID: 8743120

Claim:
A controller for emulating signal processing of audio signals along a signal path including a plurality of processing elements, the controller comprising: a setting device that sets levels of one or more dummy signals to one or more corresponding processing elements in the signal path; a designating device that designates a reference point in the signal path where a level of the audio signal subject to emulated signal processing is monitored display; a path detector that detects one or more emulated signal paths from said one or more processing elements to said reference point; a level calculator that calculates the level of the audio signal subject to emulated signal processing at said reference point based on one or more parameters stored in the controller, said level calculator calculates a plurality of levels of the audio signal at said reference point, raised by the dummy signals traveling through the detected signal paths from said one or more processing elements to said reference point, and integrates the plurality of calculated levels to obtain the level of the audio signal when said path detector detects more than one signal path; and a display device that displays the calculated level, wherein said emulated signal processing is performed without requiring the audio signal be actually processed by a signal processing device.