3. The system of claim 1 , wherein the combination mechanism is further to use multiple confusion matrices, each corresponding to an audio environment type at the mobile device, to combine the results received from the multiple speech recognizers.
4. The system of claim 3 , further comprising: an audio environment determination mechanism to determine an environment condition of the mobile device, and (ii) based on the determined environment condition, select one of multiple confusion matrices for the mobile-device-based speech recognizer for use by the combination mechanism in combining the results.