11. A speech recognition system, comprising: a processor; and a tuning engine comprising instructions that, when executed by the processor, cause the processor to perform operations including: detecting a frequency of occurrence of a particular type of utterance; determining, using interpretation labels previously assigned to utterances of the particular type of utterance, an accuracy value for the particular type of utterance indicating whether a speech recognition system is correctly interpreting the particular type of utterance, the accuracy value including a false alarm value for the particular type of utterance; and determining whether to tune the speech module with respect to a particular type of utterance based on a frequency of occurrence of the particular type of utterance and based on the accuracy value for the particular type of utterance.
11. A speech recognition system, comprising: a processor; and a tuning engine comprising instructions that, when executed by the processor, cause the processor to perform operations including: detecting a frequency of occurrence of a particular type of utterance; determining, using interpretation labels previously assigned to utterances of the particular type of utterance, an accuracy value for the particular type of utterance indicating whether a speech recognition system is correctly interpreting the particular type of utterance, the accuracy value including a false alarm value for the particular type of utterance; and determining whether to tune the speech module with respect to a particular type of utterance based on a frequency of occurrence of the particular type of utterance and based on the accuracy value for the particular type of utterance. 14. The speech recognition system of claim 11 , further comprising a repository of recorded utterances.