13. The system of claim 12 , where meta-data associated with the received audio signal comprises one of global positioning system coordinates, elevation, automatic number identification information, computing device identification number (comprised of an internet protocol address or MAC address), uniform resource locator address, individual environmental habits, personal profile information, time, and rate of movement.
12. A system comprising: a processor; and a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising: identifying a speed of a caller in a communication session; classifying a background environment of the caller based at least in part on the speed of the caller, to yield a background environment classification; selecting an acoustic model matched to the background environment classification from a plurality of acoustic models; and performing speech recognition on a received audio signal from the caller using the acoustic model.