15. A computing device comprising: one or more storage devices storing instructions that are operable, when executed by the computing device, to cause the computing device to perform operations comprising: receiving, by a first computing device, audio data that corresponds to an utterance; before beginning automated speech recognition processing on the audio data, processing the audio data using a classifier that classifies audio data as including a particular hotword or as not including the particular hotword; determining, based on the processing of the audio data using the classifier that classifies audio data as including a particular hotword or as not including the particular hotword, a first value that reflects a first likelihood that the utterance includes the particular hotword; receiving a second value that reflects a second likelihood that the utterance includes the particular hotword, as determined by a second computing device; comparing the first value that reflects the first likelihood that the utterance includes the particular hotword and the second value that reflects the second likelihood that the utterance includes the particular hotword; and based on comparing the first value that reflects the first likelihood that the utterance includes the particular hotword to the second value that reflects the second likelihood that the utterance includes the particular hotword, determining whether to begin performing automated speech recognition processing on the audio data.
15. A computing device comprising: one or more storage devices storing instructions that are operable, when executed by the computing device, to cause the computing device to perform operations comprising: receiving, by a first computing device, audio data that corresponds to an utterance; before beginning automated speech recognition processing on the audio data, processing the audio data using a classifier that classifies audio data as including a particular hotword or as not including the particular hotword; determining, based on the processing of the audio data using the classifier that classifies audio data as including a particular hotword or as not including the particular hotword, a first value that reflects a first likelihood that the utterance includes the particular hotword; receiving a second value that reflects a second likelihood that the utterance includes the particular hotword, as determined by a second computing device; comparing the first value that reflects the first likelihood that the utterance includes the particular hotword and the second value that reflects the second likelihood that the utterance includes the particular hotword; and based on comparing the first value that reflects the first likelihood that the utterance includes the particular hotword to the second value that reflects the second likelihood that the utterance includes the particular hotword, determining whether to begin performing automated speech recognition processing on the audio data. 19. The device of claim 15 , wherein the operations further comprise: receiving, by the first computing device, additional audio data that corresponds to an additional utterance; before beginning automated speech recognition processing on the audio data, processing the audio data using a classifier that classifies audio data as including a particular hotword or as not including the particular hotword; determining, based on the processing of the audio data using the classifier that classifies audio data as including a particular hotword or as not including the particular hotword, a third value that reflects a third likelihood that the additional utterance includes the particular hotword; receiving a fourth value that reflects a fourth likelihood that the additional utterance includes the particular hotword, as determined by a third computing device; comparing the third value that reflects the third likelihood that the additional utterance includes the particular hotword and the fourth value that reflects the fourth likelihood that the additional utterance includes the particular hotword; and based on comparing the third value that reflects the third likelihood that the additional utterance includes the particular hotword and the fourth value that reflects the fourth likelihood that the additional utterance includes the particular hotword, determining whether to begin performing automated speech recognition processing on the additional audio data.