1. On a computing device, a method for recognizing a speech input, the method comprising: receiving image information of a physical space from a one or more cameras; determining an identity of a user in the physical space based on the image information; receiving audio information from one or more microphones; determining a speech input from the audio input; if the speech input comprises an ambiguous term, then comparing the ambiguous term in the speech input to digital content consumption information for the user to identify an unambiguous term corresponding to the ambiguous term; and after identifying the unambiguous term, taking an action on the computing device based on the speech input and the unambiguous term.