I got sound/voice working after some very interesting experimentation. This version of the dice tower uses a ATmega328. So I had to pack all the logic and audio samples into 32K of flash. It will tell the user the dice count, die type, and the die roll result. It took some compression tricks to get the all the samples packed in there. I'll explain it all in another log if someone is interested. However, seeing this project has just one like and no followers, I won't bother posting the details until someone asks about it.
For now, here's a video demonstrating this latest version of the Heathkit D&D Digital Dice Tower.