> Not in the middle of a rant, or while you are professing your love for someone. It's possible to detect mode of speech even without visual cues. Factors such

> Not in the middle of a rant, or while you are professing your love for someone. It's possible to detect mode of speech even without visual cues. Factors such as pitch dynamics, speed of talk, etc. can be accounted for. Software can be trained to be even more sensitive to these signals than we are. Of course, the problem is that this varies somewhat among different people. Therefore, part of AI training would need to happen with actual customer after purchase. There're a lot of unknowns in this process from manufacturer's point of view, so I can understand why it's not happening yet. Once a “special” mode of speech is detected, though, it's simple to avoid canned “Please rephrase” response in case of unclear voice input. Instead the software would change its own mode of speech appropriately, and then evade the direct reply—humans do this all the time in real-life communication.