Do you mean kind of like how authentication is sometimes handled on input/UI constrained devices (e.g. TVs), where a message could be played to callers, asking

Do you mean kind of like how authentication is sometimes handled on input/UI constrained devices (e.g. TVs), where a message could be played to callers, asking them to enter a one-time code at a particular website? On the face of it, this could work quite well for most people.