9. A first computing device, comprising: at least one processor; and at least one module, operable by the at least one processor, to: determine a context of the first computing device, the context including an indication that a second computing device is proximate to the first computing device; determine, based at least in part on the context, a subset of contextual audio triggers from a plurality of contextual audio triggers, each contextual audio trigger from the plurality of contextual audio triggers usable to initiate interaction with the first computing device, wherein each contextual audio trigger from the subset of contextual audio triggers is associated with a respective operation of the first computing device and with the context of the first computing device, and wherein one of the subset of contextual audio triggers is associated with a first operation to cause the second computing device to perform a second operation; receive audio data; and responsive to determining that a portion of the audio data corresponds to a particular contextual audio trigger from the subset of contextual audio triggers, perform the respective operation associated with the particular contextual audio trigger.
9. A first computing device, comprising: at least one processor; and at least one module, operable by the at least one processor, to: determine a context of the first computing device, the context including an indication that a second computing device is proximate to the first computing device; determine, based at least in part on the context, a subset of contextual audio triggers from a plurality of contextual audio triggers, each contextual audio trigger from the plurality of contextual audio triggers usable to initiate interaction with the first computing device, wherein each contextual audio trigger from the subset of contextual audio triggers is associated with a respective operation of the first computing device and with the context of the first computing device, and wherein one of the subset of contextual audio triggers is associated with a first operation to cause the second computing device to perform a second operation; receive audio data; and responsive to determining that a portion of the audio data corresponds to a particular contextual audio trigger from the subset of contextual audio triggers, perform the respective operation associated with the particular contextual audio trigger. 10. The first computing device of claim 9 , wherein the at least one module is further operable by the at least one processor to: responsive to determining that the portion of the audio data does not correspond to any contextual audio trigger from the subset of contextual audio triggers, determine whether the portion of the audio data corresponds to a default audio trigger; and responsive to determining that the portion of the audio data corresponds to the default audio trigger, enter an audio input mode.