Video: Why Siri and Alexa won't be the only 'voices' we hear on our devices
Alexa users can train Amazon's voice assistant to learn how to recognize different voices and personalize its services for multiple users.
Amazon's Alexa has evened up the score with Google Home and can now be used to set up multiple user accounts. Amazon's Alexa "voice profiles" allows the Echo, Echo Dot, and Echo Show to deliver personalized responses to everyone in your family or share house.
Amazon Echo and other Alexa devices previously supported multiple accounts, but required users to say "Alexa, switch accounts" to move between them.
When recognizing a registered user's voice, Alexa can deliver personalized results for messages, Alexa-to-Alexa calling, music playback, shopping, and news briefings.
Now, for users on a Music Unlimited Family Plan, each person with a voice profile can just say "play music" and Alexa will select songs based on the speaker's preferences. It will also personalize results for the command "play a station".
When shopping, users who've set up a voice confirmation code will no longer to say the code during the purchase, as Alexa has already recognized the user's voice and linked it to their account.
As CNET notes, Alexa will only ask for the code if it's sure it isn't you in order to prevent kids from going on a buying spree.
Voice profiles should also work with third-party Alexa-powered devices, but not the Amazon Tap.
According to Amazon's setup instruction video, training the assistant to recognize a user's voice requires they repeat 10 given phrases. The training data is is stored in the cloud so that Alexa devices purchased in the future can also recognize users.