The Tap will support voice/speaker recognition, but ONLY if you have a non-tap device with which you do the training. This is contrary to the documentation in:
https://www.amazon.com/gp/help/customer/display.html?nodeId=201601940Apparently the Tap is a poor cousin to the rest of the devices, but I love carrying the top with me around the house to have my music in the house. In the car, I link to my mobile phone hotspot and have voice activation of the podcasts I want to hear while driving.
I wish that the Tap software would merge source trees with the other Echo devices to enable the features inherent in other, cheaper devices (e.g. alternate wake word).