CompuServe Messages

I think I'm the guy you wanted. I run a 56001-based system from the parallel port of my A500. The system is the GMP board, containing a 56001 @ 27 Mhz, full static RAM complement, MIDI interface, RS-232 interface, and a custom host port interface that connects to the parallel port. A/D/A is provided on a daughterboard using one of the Crystal integrated parts, 64x oversampling fixed-rate (44.1KHz) system. The board, alas, only had one or two production runs, and I think the guy who made it sold the last one a month or two ago. Good news is that he's working on an even cheaper board using a newer version of the DSP chip, with a little less flexibility than the original. The original, by the way, went for about $200 in kit form, with another $100 or so for the A/D/A daughter- board. Software: I'm using the system with software running under HMSL, a language for experimental music composition and performance. The software allows interactive construction of synthesis/analysis "patches" using a graphic box-and-wire interface, similar to the way Max works with MIDI. The hardware may have a successor. Tom Erbe, who designed the original board, may be producing a new, small (stomp-box-sized) version early next year. E-mail tom@ella.mills.edu for more detail. Fun stuff. Written a few serious pieces with it, and it works well under "real" performance conditions. –rbt