Patent ID: 8401199

Claim:
A system for modifying a controllable stimulus generated by a digital audio device in communication with a human user, the system comprising: a test set generator for generating a test set for the digital audio device, the digital audio device sending a stimulus to the human user, the stimulus defined at least in part by a parameter, the parameter comprising a value; a signal receiver for receiving an output signal from the human user, the output signal based at least in part on a perception of the stimulus by the human user; a perceptual model module receiving and storing information concerning the output signal from the signal receiver; and a parameter value generator for applying at least one algorithm to the information and modifying a parameter value based at least in part on the application of the algorithm to the information, wherein the at least one algorithm comprises a uniform sampling algorithm, and wherein the parameter value generator further comprises: a point identification module for identifying a plurality of sampled points; an area identification module for identifying a plurality of projected areas, wherein each projected area is characterized by an absence of any of the plurality of sampled points; and a projected point identification module for identifying a projected point associated with a first projected area so as to reduce the size of an unsampled area for subsequent iterations.