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Conference napalm::commusic_v1

Title:* * Computer Music, MIDI, and Related Topics * *
Notice:Conference has been write-locked. Use new version.
Moderator:DYPSS1::SCHAFER
Created:Thu Feb 20 1986
Last Modified:Mon Aug 29 1994
Last Successful Update:Fri Jun 06 1997
Number of topics:2852
Total number of notes:33157

1250.0. "Definition of MIDI OMNI Mode" by AQUA::ROST (Tush, tush, you lose your push) Mon Mar 14 1988 19:55

    
    As a novice at MIDI interfacing, I have what may be a stoopid question,
    but here goes...
    
    The other day I had a Mirage on loan and when I hooked it up to
    my CZ I found it was in Omni mode, and with no manual, I was unable
    to figure out how to get into poly mode (user-friendly the Mirage
    front panel aint).  Well, ol' Edd came to the rescue on that one
    but, I started to wonder.
    
    
    What is OMNI mode for????
    
    After all, in Omni, the device will respond to all channels, not
    too useful in a normal sequencing environment with multiple
    instruments.
    
    Poly and Mono modes I can understand, but I don't see any real use
    for Omni mode.  Comments???   Anyone who uses/has used it in
    the past??  
    
    BTW I noticed that my CZ-5000 doesn't support it, or at least not according
    to the manual.
    
    
    
    
T.RTitleUserPersonal
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1250.1I don't know what it's for either...JAWS::COTEHey! You seen my datums?Mon Mar 14 1988 20:0321
    > I was able to get into poly mode...
    
    I think you know this but just in case... The opposite of OMNI mode
    is not POLY mode, it's OMNI OFF.
    
    
    4 modes were spec'd...
    
                         OMNI ON  -  MONO
                         OMNI ON  -  POLY
                         OMNI OFF -  MONO
                         OMNI OFF -  POLY
    
    The MONO/POLY qualifier related to the degree of polyphony, MONO
    equaling 1 note, and poly equaling >1.
    
    What you finally got into was OMNI OFF - POLY.
    
    The Mirage will support MONO mode.
    
    Edd
1250.2For non-MIDI expertsDREGS::BLICKSTEINMIDI DJMon Mar 14 1988 20:067
    I think Omni mode is sorta for the people who don't wanna know from
    MIDI channels.  They just wanna hook up their CZ's to their whatevers
    and just have it work.
    
    I know some devices always power up in Omni mode for this reason.
    
    	db
1250.3I use it frequently (but it is of small value).BOLT::BAILEYSteph (stef') BaileyMon Mar 14 1988 20:079
    If you have a bunch of gear down stream in your midi chain, and
    you just want to play around with it (as opposed to playing a sequence,
    or whatnot) you can put the synths in OMNI and not disturb your
    channel assignments (or at least I can on my synths).
    
    This allows me to work up wicked bitchin' massive stacks, and then
    play my sequences without much hassle.
    
    Steph
1250.4SALSA::MOELLERconducting the Silicon SymphonyMon Mar 14 1988 20:128
    OMNI ON - POLY is for, when receiving from a controller that xmits 
    two MIDI channels at once (like a KX88), cutting your polyphony in
    half.
    
    karl
    
    p.s. so QUILL is back ! d'ja know NOVA's version of this conference
    dates back to March 3 ?? 
1250.5< H U H ? ....... >NCVAX1::ALLENTue Mar 15 1988 17:068
    re .4
    
    	Why in the world would anyone want to do that?
    (Is this because you cannot control the MIDI channels from the KX88?)
    
    Puzzled??
    
    
1250.6SALSA::MOELLERconducting the Silicon SymphonyTue Mar 15 1988 17:199
< Note 1250.4 by SALSA::MOELLER "conducting the Silicon Symphony" >
>    OMNI ON - POLY is for, when receiving from a controller that xmits 
>    two MIDI channels at once (like a KX88), cutting your polyphony in
>    half.

    This is, like, sardonic humor. I know how to control the MIDI channels
    from the KX88. I mustv'e forgotten the winky face again.
    
    karl
1250.7Artifacts of Brainlessness?DRUMS::FEHSKENSWed Mar 16 1988 14:2516
    I think OMNI mode reflects two desires, one possibly useful, one
    probably obsolete:
    
    	1) it makes it possible for synth manufacturers to ignore the
    	   channel number and just play the notes.  Maybe somebody who
    	   didn't know about VLSI and microcode thought it would make
    	   synths cheaper.  This is not really a valid reason any more.
    
    	2) the stuff everybody's already said about nobrain users who
    	   donwannano from channels.  This is useful, I guess, but if
    	   I want to do something like this is just run everybody on
    	   channel one.  It's as much work to get all the synths into
    	   OMNI mode as it is to set them all to channel 1.
    
    len.
    
1250.8I vote for hamburger A ...MIZZOU::SHERMANput down the ducky!Wed Mar 16 1988 16:095
    I use the omni mode in the TZ all the time.  It allows me to diddle
    with a patch from the keyboard or the sequencer without having to
    reassign midi channels.
    
    Steve