heya! it works with windows tts which does work with sappi voices as far as I understand but they need to be installed as windows voices/packages. I know some users that installed like brian like that for exmaple (you can buy it on some pages as a sapi voice). Im not aware of any other sapi engines that are easy to implement or programs that come with api support to forward local generation requests, always open to suggestions though. If you want to manage both events and tts generation yourself with some other programs, I have a different plugin that just monitors audio and transform those into vtubestudio mouth parameters which may be easier for you if you are handling all the processing somewhere else (I can link you to a video showing that other plugin). If not vtspog can read any audio file you sent it through its local api. Though let me know and like i said i can look into it
Rock on! I'll have to wait until Friday to get back with you on that. I also have to clean up my SAPI TTS setup to make sure that and another engine, Eloquence, also works. These engines are quite famous in the blind community for use with screen readers and dectalk is famously known as the voice of Stephen Hawking for much of his life until his old setup needed replacement.
SAM as in 1980s Software Automatic Mouth (not Microsoft Sam)?! (Just bought the program and am playing with it in a non-production environment.) Now you're REALLY cookin'! I played with this on an Apple II which could use either a one-bit DAC implemented in software or an 8-bit physical DAC. I'm really looking forward to playing with this!