26. A system comprising: an audio input module configured to obtain an audio input; a first module in communication with the audio input module; a second module in communication with the first module; and a network interface module in communication with the first module; wherein the first module is configured to: determine one or more values based at least in part on the audio input, wherein the one or more values comprises at least one of: a first value indicating an energy level of the audio input; or a second value indicating a likelihood that the audio input comprises data representing speech; cause the audio input module to increase a sampling rate of the audio input, from a first lower sampling rate to a second higher sampling rate, based at least in part on the one or more values; cause activation of the network interface module based on the one or more values by providing power to the network interface module; and cause activation of the second module based at least in part on the one or more values; and wherein the second module is configured to: determine that the audio input likely comprises data representing a wakeword; and cause speech recognition to be performed on at least a portion of the audio input.
26. A system comprising: an audio input module configured to obtain an audio input; a first module in communication with the audio input module; a second module in communication with the first module; and a network interface module in communication with the first module; wherein the first module is configured to: determine one or more values based at least in part on the audio input, wherein the one or more values comprises at least one of: a first value indicating an energy level of the audio input; or a second value indicating a likelihood that the audio input comprises data representing speech; cause the audio input module to increase a sampling rate of the audio input, from a first lower sampling rate to a second higher sampling rate, based at least in part on the one or more values; cause activation of the network interface module based on the one or more values by providing power to the network interface module; and cause activation of the second module based at least in part on the one or more values; and wherein the second module is configured to: determine that the audio input likely comprises data representing a wakeword; and cause speech recognition to be performed on at least a portion of the audio input. 31. The system of claim 26 , wherein the one or more values comprise a score indicating a likelihood that the audio input comprises a wakeword.