One thing that has been amazing me recently is the current state of vocal synthesis. It seems to have improved rapidly in the space of just a few years, thanks to neural network models.
For example, here's a quick clip from a synth I've been using in recent weeks:
For example, here's a quick clip from a synth I've been using in recent weeks:
https://vocaroo.com/125tAD40Gl6d
It sounds almost like a real voice, and that's just using the default settings, without any effort to tweak it further to improve the realism.