12. The method of claim 9 comprising: determining, by the first user device for a third user device, a frequency with which the third user device is located in a physical area near a physical location of the first user device; determining, by the first user device, whether the frequency satisfies a threshold frequency; and associating, by the first user device, a third speaker model specific to a third user of the third user device with the first user device in response to determining that the frequency satisfies the threshold frequency.
12. The method of claim 9 comprising: determining, by the first user device for a third user device, a frequency with which the third user device is located in a physical area near a physical location of the first user device; determining, by the first user device, whether the frequency satisfies a threshold frequency; and associating, by the first user device, a third speaker model specific to a third user of the third user device with the first user device in response to determining that the frequency satisfies the threshold frequency. 14. The method of claim 12 wherein associating, by the first user device, the third speaker model specific to the third user of the third user device with the first user device comprises sending, by the first user device to a server, a message indicating that the third speaker model should be associated with the first user device.