1. A method comprising: designating, by a first computing device from a plurality of computing devices, a particular computing device from the plurality of computing devices to process audio input; if the particular computing device is not the first computing device, ceasing, by the first computing device, processing of audio input; and if the particular computing device is the first computing device: receiving, by the first computing device, first audio input; and processing, by the first computing device, the first audio input to determine whether the first audio input includes a predetermined audio command.