The first Ad Lib sound card is a relatively simple circuit based on the Yamaha YM3012 (OPL2) and YM3014B chips. These chips are frequently available on eBay, and [Sergey] already has a complete ...

These provided a quantum leap in sound quality compared to the PC speaker’s tinny beeps, thanks to Yamaha’s YM3812 chip ... whether through a classic sound card or through a parallel port.