There was Z80 code to record from the MIC socket in one of the small books (Melbourne House maybe?) that came out in the early 1980s. I remember borrowing it fr

There was Z80 code to record from the MIC socket in one of the small books (Melbourne House maybe?) that came out in the early 1980s. I remember borrowing it from the library and it worked! Heavily quantized of course by the snapping to 2 or 0. Also some games had sound samples, Activision’s Ghostbusters had a couple.