Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/5/84; site reed.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!tektronix!reed!bart From: bart@reed.UUCP (Bart Massey) Newsgroups: net.music.synth Subject: Re: Re: rs232 midi interfaces Message-ID: <966@reed.UUCP> Date: Thu, 21-Feb-85 19:05:09 EST Article-I.D.: reed.966 Posted: Thu Feb 21 19:05:09 1985 Date-Received: Wed, 27-Feb-85 07:19:44 EST References: <870@bnl.UUCP> <2560@mcnc.UUCP> Distribution: net Organization: Reed College, Portland, Oregon Lines: 24 > In article zadco@ssc-vax.UUCP (Rick Fairfield) writes: > > >MIDI requires over 30000 bits/sec. RS232 usually runs at most 19200 baud so, > >as you can see, MIDI is a problem over RS232. > > zzzzadco > > I'm not sure I want to publicly disagree with my brother-in-law but... > > While the problem isn't trivial, It should be possible to send/translate > RS232->MIDI in a fairly straightforward way. 32K bits/sec translates > roughly to 3200 baud (as baud is used in lay terminology.) Assuming > asyncronous protocol and loss of a bit to parity (why not) a 4800 baud > link should be more than sufficient for the required MIDI bandwidth. > -- > > Byron C. Howes > ...!{decvax,akgua}!mcnc!ecsvax!bch Whoa! There's a decimal point problem here somewhere. 1 baud = 1 state change / second = 1 RS232 bit / second. 1K bits = 1024 bits , close to 1000 bits. SO 32K bits / second = 32K RS232 baud, close to *32000* baud. Comments? ..tektronix!reed!bart Massey