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The Google ASR doesn't require anything and cannot be customized (but it's very good in its current settings). the major limitation of the Google ASR is that it processes audios only about 10 seconds long.
Command line parameters
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-h display help
-l <arg> The language model ID to be used in the AT&T ASR
-m <arg> Maximum audio length (seconds) before sending request to service
-p <arg> Port to listen for sonic activity
-t <arg> Type of the asr to run (Google or AT&T), use G for Google and A for AT&T
-u <arg> The UID to use the AT&T MashUp site
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