Although my voice is ok, I've had the snuffles for far too long. I've starting creating my first course Learn C Games Programming and discovered that text-to-speech voices on Windows 10 are pretty good.  They sound natural with only the odd place where you might realise it's not a human.

I have done voice recording before (using Camtasia for screencasts)  and I feel that text-to-speech can increase the throughput. I'm happy to upload a sample of what I've done. 

So I just wanted to sound people out on this.