The feature will be available on all the Alexa-enabled devices including the Echo smart speaker. Since the AI assistant finally has the ability to differentiate between voices, it will give more personalized responses. Especially, Amazon Echo will definitely be improved. For example, once the device is able to tell someone's voice apart, it will automatically help the person to perform various tasks.
The voice recognition feature of Amazon Alexa support shopping, messaging, Amazon Music, Flash Briefings, and Alexa-to-Alexa calling.
In order to enable this new feature on your Alexa-equipped device, you have to set up a voice profile. Basically, you will be asked to read aloud 10 phrases, and Alexa will create a voice profile based on that data.
Once that's done, voice profiles will work across all Echo devices and "most" third-party party Alexa-enabled devices. However, it should be kept in mind that touch-to-talk devices such as Fire TV remote and Amazon Tap do not support voice profiles. Amazon further mentions that the voice recognition feature will get "smarter over time".
In any case, we are just happy that the e-commerce giant has finally decided to add this much-awaited feature to Alexa. Google's smart speaker Google Home had received the voice recognition ability back in April. As this puts both the devices on the same page, the battle between the smart speakers has become more intense.