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!