Cereproc is the best from what I have found. I have read some of the research and it is odd to me that female voices are easier for computers than male voices. The UK and Scottish voices are the best, but probably because I am an American.
This article is by Microsoft if you are on Windows 10:
https://support.microsoft.com/en-us/office/how-to-download-text-to-speech-languages-for-windows-10-d5a6b612-b3ae-423f-afa5-4f6caf1ec5d3And this is a year old, so I will investigate this myself. It has been a couple of years since I researched this, and the whole time I was thinking 'Elon is building self driving cars, and I have to pay a narrator to speak in a voice?'
Microsoft's new Edge has a Cloud Powered text to speech, so after I post this I will go read it.
https://blogs.windows.com/msedgedev/2019/08/14/cloud-powered-voices-microsoft-edge-chromium/To answer your question about what extension, I thought it was .tts, but just searched my machine and didn't find any.
I have been to cheap to pay for a Cereproc voice, but I use their website and record a few using Windows 10 Stereo Mix lin either Audacity or I usually use AVS Audio Editor for this.
Let me know if you find this out, now I am curious.
And I just noticed you are holding a guitar. I just published an IClone music video.
It looks better on 4K if this doesn't start that way.
Creator of the free website:
PixelDatabase.Net
A Free Online Text Based Image Editor
