In some embodiments, one or more of the components described above, such as one or more of the components 551-556, can operate in conjunction with the microphone(s) 224 to detect and store a user's voice profile, which may be associated with a user account of the MPS 100. In some embodiments, voice profiles may be stored as and/or compared to variables stored in the set of command information, or data table 590, as shown in
In some embodiments, one or more of the components described above, such as one or more of the components 551-556, can operate in conjunction with the microphone array 524 to determine the location of a user in the home environment and/or relative to a location of one or more of the NMDs 103. Techniques for determining the location or proximity of a user may include or more techniques disclosed in previously referenced U.S. patent application Ser. No. 15/438,749, U.S. Pat. No. 9,084,058 filed Dec. 29, 2011, and titled “Sound Field Calibration Using Listener Localization,” and U.S. Pat. No. 8,965,033 filed Aug. 31, 2012, and titled “Acoustic Optimization.” Each of these applications is incorporated herein by reference in its entirety.