Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!bbn!uwmcsd1!ig!jade!ucbvax!hplabs!gatech!pyr!gt4785b From: gt4785b@pyr.gatech.EDU (CARTER) Newsgroups: comp.sys.amiga,comp.sys.atari.st Subject: Re: Amiga and MIDI Message-ID: <4567@pyr.gatech.EDU> Date: Sun, 29-Nov-87 02:40:05 EST Article-I.D.: pyr.4567 Posted: Sun Nov 29 02:40:05 1987 Date-Received: Tue, 1-Dec-87 05:43:45 EST References: <447@nuchat.UUCP> <32160@auc.UUCP> <528@otto.COM> Reply-To: gt4785b@pyr.UUCP (David Carter) Organization: Georgia Institute of Technology, Atlanta Lines: 26 Keywords: MIDI Amiga Atari ST Summary: It all but does have it built in Xref: mnetor comp.sys.amiga:11693 comp.sys.atari.st:6531 In article <528@otto.COM> rex@otto.UUCP (Rex Jolliff) writes: >> [deleted text about MIDI 'interfaces' for the Amigas] >hmmm... This sounds pretty scary to me. If the interface is built into the >computer, then the software developers don't have to worry about writing >'drivers' to support all the different interfaces with 'similar features'. >However, if you have to hook the interface up as an afterthought, only the >software supplied by the interface manufacturer may be compatable. The midi "interface adaptor" for the amiga consists of: a DB-25 plug, a DB-25 socket, 4 DIN sockets, 2 toggle switches, an optiosolator, and an op-amp. In other words, the only thing not already MIDI about the port on the back of the Amiga is that it's a DB-25 instead of a DIN. The op-amp and optoisolator just make it safe (i.e. buffering). But as far as software is concerned, ANY midi "adaptor" for the amiga will look the same. The DB-25 socket and one of the switches are so the person can use his printer too. Yeah, it would be nice to have a seperate, dedicated MIDI jack, but a) you usually never print while MIDI-ing, and b) many people will never use their Amigas for MIDI, so it would have been wasted money. A friend had shown me a copy of a magazine article on "how to build a MIDI adaptor for the Amiga." Does anyone remember what magazine/issue that was? David Carter