11. A speaker identification (ID) device for passive enrollment of a user, the device comprising: a speech parsing circuit to parse a user speech sample, spoken by the user, into a command phrase sample and a sample of a keyword phrase; a text-dependent speaker ID circuit to identify the user as the speaker of the keyword phrase sample; a command phrase association circuit to associate the command phrase sample with the identified user; a command phrase enrollment testing circuit to determine if the command phrase sample in conjunction with one or more earlier command phrase samples associated with the user is sufficient command phrase sampling to enroll the user in a text-independent speaker ID circuit of the speaker ID device, the command phrase sample and the one or more earlier command phrase samples together making up at least two command phrase samples associated with the user; and a text-independent enrollment circuit to enroll the user in the text-independent speaker ID circuit using the at least two command phrase samples associated with the user after the command phrase enrollment testing circuit determines there is sufficient command phrase sampling to enroll the user in the text-independent speaker ID circuit.
11. A speaker identification (ID) device for passive enrollment of a user, the device comprising: a speech parsing circuit to parse a user speech sample, spoken by the user, into a command phrase sample and a sample of a keyword phrase; a text-dependent speaker ID circuit to identify the user as the speaker of the keyword phrase sample; a command phrase association circuit to associate the command phrase sample with the identified user; a command phrase enrollment testing circuit to determine if the command phrase sample in conjunction with one or more earlier command phrase samples associated with the user is sufficient command phrase sampling to enroll the user in a text-independent speaker ID circuit of the speaker ID device, the command phrase sample and the one or more earlier command phrase samples together making up at least two command phrase samples associated with the user; and a text-independent enrollment circuit to enroll the user in the text-independent speaker ID circuit using the at least two command phrase samples associated with the user after the command phrase enrollment testing circuit determines there is sufficient command phrase sampling to enroll the user in the text-independent speaker ID circuit. 15. The speaker ID device of claim 11 , wherein the text-independent speaker ID circuit is to identify the user as the speaker of a second speech sample spoken by the user after the user is enrolled in the text-independent speaker ID circuit.