1. A method comprising: determining, by a first computing device, a context of the first computing device, the context including an indication that a second computing device is proximate to the first computing device; determining, by the first computing device, 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 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; receiving, by the first computing device, 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, performing, by the first computing device, the respective operation associated with the particular contextual audio trigger.
4. The method of claim 1 , wherein the context includes an indication of an application executing at the first computing device, and wherein each contextual audio trigger from the subset of contextual audio triggers is associated with a respective operation performed by the application executing at the first computing device.