Hey, this might be related to the simulated conversation that will be on the new TOEFL Essentials Test! Check out this page. There is a video. The video was added within the last week or two.
It hasn’t been confirmed, but I suspect that’s the tech being used on the test. A few more notes following the screenshots.
There is an article describing the tech over here. It includes a schematic illustration of the possible flow of a conversation simulating a job interview. Another article discusses how ETS has been developing avatars to make the conversations a bit more vivid.