Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!uc!nic.MR.NET!umn-cs!nis!quad!dts From: dts@quad.uucp (David T. Sandberg) Newsgroups: comp.music Subject: Re: MIDI specs... Message-ID: <230@quad.uucp> Date: 14 Aug 89 09:02:16 GMT References: <5791@rpi.edu> <2631@blake.acs.washington.edu> Reply-To: dts@quad.uucp (David T. Sandberg) Organization: Quadric Systems, Richfield MN Lines: 23 In article <2631@blake.acs.washington.edu> wiml@blake.acs.washington.edu (William Lewis) writes: > BTW, anyone who actually uses a MIDI system -- from this article it looks >as if only sixteen instruments can be connected to any MIDI loop. (only >4 bits are available to specify instrument number.) This includes things like >keyboards, sequencers, &c. Is this true? Rather than instruments, say that there are only sixteen *channels*... if you have two sound sources you want to double up on the same part, they can both be set to read from the same channel information. But in general, yes, you are limited to sixteen channels on any given MIDI path. However, this can be gotten around by using multiple MIDI paths in your overall system, if you have both hardware and software smart enough to handle such a setup. Also, you seemed to indicate that the limit of 16 "instruments" includes sequencers. Fortunately, only controlled devices need to be assigned to specific MIDI channels... by definition, a sequencer is reading and dispatching MIDI data on *all* channels, for the other devices on the loop, so it doesn't need a separate channel for itself. -- David Sandberg - Quadric Systems "Strike Hard, Strike Sure" PSEUDO: dts@quad.uucp Bomber Command, R.A.F. ACTUAL: ..uunet!rosevax!sialis!quad!dts