Sound driver demo2 is, as its own name indicates, a technical demonstration designed to test a sound driver in development: this kind of piece is common in any retro system programming process, since audio handling usually requires independent test routines before being integrated into a complete game. There's no solid documentation on exact target system, authorship, or the larger project it may have been intended for. Its value is mainly technical and historical, as a record of the low-level programming work that rarely reaches the eyes of the general public.
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