https://www.youtube.com/watch?v=_Zq53wGd34E

MAME now supports emulating an East German numbers station speech generator, if that's something you need to have handy for any reason

MAME Showcase Gerät 32620 (Sprach/Morsegenerator): German speech

YouTube
@revenant I don't ever want to see it running in a cabinet, but MAME is an absolute treasure.