You can actually achieve something like this:
- Switch from Azure TTS to “Windows Offline”
- Download different english language packs (e. g. Irish, Australian, British, Indian etc.) in Windows language settings
- Have fun
I also tried to download additional TTS-packs with additional voices from external sources but I think these don’t really work for Windows TTS (even though it’s advertised they should).
This way, you can have, like, ten different voices. Of course this only works for english voices but as english is usually the ATC language anyway (at least vor IFR) I’m persoally totally okay with it.