12. A method of tuning a speech recognition system, the method comprising: transmitting an associated user response to a speech recognition system, wherein the associated user response is based at least in part on a test stimulus; receiving a recognized response from a speech recognition system, wherein the recognized response is based at least in part on the associated user response; comparing at least two of the test stimulus, associated user response, and the recognized response; generating a confusion error matrix, wherein the confusion error matrix comprises test stimulus and the recognized response; and adjusting at least one parameter of a speech recognition system based at least in part the confusion error matrix.
18. The method of claim 12 , wherein the confusion error matrix comprises a first difference between a first associated user response and a second recognized response and a second difference between a second associated user response and a second recognized response.