12. The method of claim 6 , further comprising generating the received audio signals by a plurality of microphones that capture spoken words of different people to generate the received audio signals.
6. A method, comprising: receiving audio signals corresponding respectively to different regions of an environment; analyzing the audio signals to recognize speech from each of the audio signals, wherein analyzing the audio signals comprises concurrently generating a plurality of different text streams that each correspond to a different one of the audio signals; generating a confidence value for each of the plurality of different text streams corresponding to the audio signals, wherein the confidence value for a particular text stream indicates an estimated accuracy of the recognized speech from said particular text stream, the confidence value generated based at least in part on expected speech input for a predetermined command lexicon; and selecting at least one of the plurality of different text streams associated with the recognized speech from at least one of the audio signals based at least in part on a respective confidence value.