'Microsoft Text-to-Speech Downloader' is a great tool for downloading realistic speech audio made by Microsoft's text-to-speech service.
It works with many languages and voices.
You can change the style, speed, and pitch of the speech.
The tool charges a small fee to cover backend server costs for the PRO plan.
As far as I know, it‘s the most affordable tool you can find online.

If you run into any problems, get in touch with us.