21. The system of claim 14 , wherein the one or more programs further include instructions for: in accordance with a determination that the speaker of the user speech is not the predetermined user, adding the audio input comprising user speech to a speaker profile for an alternate user.
21. The system of claim 14 , wherein the one or more programs further include instructions for: in accordance with a determination that the speaker of the user speech is not the predetermined user, adding the audio input comprising user speech to a speaker profile for an alternate user. 22. The system of claim 21 , wherein determining whether the speaker of the user speech is the predetermined user is further based at least in part on the speaker profile for the alternate user.