1. A method of generating a domain-specific speech recognition model, the method comprising: identifying a speech recognition domain; combining a plurality of speech recognition models to yield a combined speech recognition model, each speech recognition model of the plurality of speech recognition models being from a respective speech recognition domain; receiving an amount of data specific to the speech recognition domain, wherein the amount of data is less than a minimum threshold to create a new domain-specific model; and tuning the combined speech recognition model for the speech recognition domain based on the amount of data.