Tomodachi Life/Miitomo Text-to-Speech Program for PC?

Hi. Long story short, I would like to make a video that's narrated by the voices produced by the synthesizer in Tomodachi Life and Miitomo. After doing some research and reading this thread, I've managed to find a demo of the source voice (Nuance Samantha) that can save readings as mp3 files, which is all fine and dandy, but it lacks the audio adjustments the game offers to produce different voice styles (quality, accent, etc.).

I know Vinesauce has manged to produce some lines of isolated speech, whether they extracted data and built it into an .exe that reads back text and saves the audio, or simply recorded catchphrases from the game with the music muted, I do not know, but I doubt it's the latter (the phrase "Previously, on Tomodachi Life" would be too long to set as a catchphrase).

Maybe I'm too stupid to adjust the Samantha audio manually using audio editing software, or I simply can't find an existing program on the internet, either way it makes me wonder: Is it possible to use the TTS data from an extracted ROM of Tomodachi Life to construct an .exe that simulates mii voice creation and playback? It's a lot to ask, but at this point I'm happy to just get closure on this.