Quoted from geeteoh:

I have a replacement S&T board that plays WAV files. The one I currently sell, only has the WAV files for Mr Mrs Pac-Man. But it would work with some minimal configuring with any S&T machine. It will listen to the MPU and play any one of 256 sounds as numbered WAV files on a MicroSD card. I have a list of sounds vs addresses for Flash Gordon to help. I also have a couple of diagnostic boards which can figure out sounds as well.
Here is a playlist of my YouTube videos on the subject:
https://www.youtube.com/playlist?list=PLAvyQGRAzhQAtsoQOQpaa5NBc2xXhtIUX
Website:
https://geeteoh.com/geeteoh/squawktalk.shtml
PM or email me, and we'll talk more.

Quoted from geeteoh:

Thanks for the offer. I'm tweaking in the Elektra right now. I have ROMs for the 8-ball Deluxe to get the sounds. But I'm going to need to test it somewhere. You are close by too!