Help for MIRI Soundcards

In message <491n8j$@marvin.muc.de
I don't know if the PC10 is related, but the March 28, 1995 issue of PC
Magazine lists the miro PCM-1 Pro board as having a CS4231 and a Yamaha
OPL4. The CS4231 is one of the more common chips for doing "Windows Sound
System" compatibility, and the OPL4 is a wavetable synthesis chip. This
combination is also used by the Mediatrix Audiotrix Pro, according to the
same article. I believe that Mediatrix has drivers for their board, though
the last I heard, it didn't support MIDI (or at least not wavetable MIDI),
but it's a starting point. There are also drivers included in Warp for
Windows Sound System, going by the name of "Business Audio AD1848" (and the
"Compaq Business Audio" drivers are apparently very similar). I've heard
that some parameter is necessary to get these working with CS4231-based
boards, but I don't know what the parameter is.

AFAIK, there's no such thing as an "MPU-401 chip;" MPU-401 is an interface
specification (among other things) for MIDI devices. In the context of your
sound board, it means one or both of two things: The board has an MPU-401
interface (probably which doubles as a joystick port) for external MIDI
keyboards, synthesizers, etc.; or the board is capable, with appropriate
MPU-401 drivers, of playing back MIDI files without using external MIDI
devices.

--Rod Smith