11. The system of claim 10 , wherein the machine translation engine is further operable to translate logged text data of the existing corpus in the given language to the target language and include translation results of the logged text data in the target corpus.
10. A system comprising: one or more non-transitory computer-readable storage media storing data that represents an existing corpus; an automated speech recognition engine, executable on one or more processors having access to the computer-readable storage media, and operable to receive audio input in a target language, and a target context of the audio, and further operable to determine that a target corpus that corresponds to the target language and the target context is unavailable; a machine translation engine, executable on one or more processors having access to the computer-readable storage media, and operable to receive logged speech recognition results that correspond to an existing corpus that is specific for a given language that differs from the target language, and to the same target context that corresponds to the received target language audio input and the logged speech recognition results, and further operable to generate the target corpus that corresponds to the target language and the target context by machine-translating the logged speech recognition results corresponding to the given language to the target language, wherein results of the translation are stored in the computer-readable storage medium as the target corpus; and a language model generator, executable on one or more processors having access to the computer-readable storage media, and operable to estimate a context-specific language model that is specific to both the target language and the target context using the generated target corpus.