You can already get software that will read a script in a way that sounds very much like a human voice.  It still sounds a bit robotic, but it dows work.  Here's a site that demos one package: https://www.naturalreaders.com/online/

You can already get software that will read a script in a way that sounds very much like a human voice.  It still sounds a bit robotic, but it dows work.  Here's a site that demos one package: https://www.naturalreaders.com/online/