OK, I’m late to this party, that’s for sure, but I’ve just recently heard about this on the Uncle Pinball’s Podcast and am intrigued. I’m trying to wrap my head around how this all works (I’ve read through the Stars thread), and I’m probably about half way there to understanding all of it.

I’ve also been playing with the AmokSolderer Arduino Pinball Controller for Williams games, and have had the idea to put some custom sounds on my Pharaoh. Maybe leave some as stock, but replace others with custom sound. That’s more of a complete MPU board replacement, and I’m pretty clear on how to make that happen at this point (just have to actually DO it).

Anyway, if I didn’t want to change any rules on my Bally KISS, but I did want to update the audio package from bleep/bloop to actual music sounds, would this be a good way to accomplish that? Can I redo the sound without re-writing (or re-creating) the rules?
If this turns into a derail, I can move it somewhere else.

Thanks,
Jeff

Yeah, unfortunately KISS is not a squak and talk game. It has the -50 sound board, and I'm not sure its the same interface as the S&T.
Guess I'll have to figure it out on my own!

I don’t want to hijack this thread, so I’ll try not to linger on this too long.
Seems the AS-2518-50 board is just a tone generator, like a piano keyboard that is “played” by the CPU board via the 5 bits like you said. It doesn’t appear to “store” any sequences of notes, but in that regard, I don’t know what the ROM actually does on this board (maybe it determines the shape of the sound?). For example, when I plop the sound board from my Paragon into my KISS, it still plays KISS sounds.
I inspected with a scope and have successfully mimicked the simple control via an arduino and can make it produce one tone at a time, like playing a scale on a piano, based on the 5-bit input, though I only used 4 bits (0001 is the highest tone, 1111 the lowest tone). If I wanted to, I could sit down and write a program to play a little song...boring.

So since the CPU isn’t asking for a specific “sound effect”, but rather creating the actual sounds it wants, I don’t think a WAV trigger is a good solution for this type of game, at least not based on the sound signals, unless I wanted to deconstruct and rewrite the code (which kind of brings us back to the subject of this thread).
Perhaps I could write an arduino program that could “recognize” the sound being played, and trigger something based on that, but I don’t think I want to go down that road.

Ok, let’s get back to the cool things DickHamill did to Trident!