T.R | Title | User | Personal Name | Date | Lines |
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553.1 | a start... | GNERIC::ROSS | untitled | Tue Oct 28 1986 14:02 | 28 |
|
It can get very complicated, but if you limit discussion to
ONE midi channel:
Synths and kbd controllers will send out ALL note on/off messages
that relate to the keys you press on that channel. There better
not be exceptions to this(!).
You have to separate the note info "generator" from the sound
generator. Its the sound generator that determines how to handle
all those midi note on/off msgs according to various algorithms.
Most quit after turning ON all their voices and ignore other
messages, BUT some (Matrix-6R is one) have a "Spill over" mode
that will send the "extra" note ons to another unit, I guess on
another channel(?).
Again on ONE channel, you have a 6-voice and a 8-voice midi-ed
to some controller. 6 note ons and the 6voice is 'full'. So too
will the 8voice have 6 notes on...but it has room for 2 more
notes.
Maybe someone else will explain Midi "Modes" Poly, Omni and how
that complicates the issue...
ron
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553.2 | but wait... | GNERIC::ROSS | untitled | Tue Oct 28 1986 14:09 | 11 |
|
Oops. I think I may mislead you. Most(?) voice generators
use an assignment algorithm that 'steals' a voice in
order to accomodate a new note on msg when all voices
are currently being sounded. So on a 6 voice when you
play 7 notes, the last key down results in a new note
sounding...get it?
But there are exceptions. Help me out guys....
|
553.3 | You'r Doin' All Right... | ERLANG::FEHSKENS | | Tue Oct 28 1986 14:20 | 8 |
| You've mostly got it. Some synths just ignore incoming note-ons
if all sound modules are "busy". Some implement a "priority"
scheme which may be user selectable. The MIDIBass, an inherently
monophonic synth, allows 4 choices - low note, high note, last note,
first note.
len.
|
553.4 | or something like that | GNERIC::ROSS | untitled | Tue Oct 28 1986 14:49 | 4 |
| Kurzweil has the most choices, but the only one
not mentioned that I can think of is lowest
volume voice sounding at new attack time.
|
553.5 | I'm slow today | BARNUM::RHODES | | Tue Oct 28 1986 15:24 | 6 |
| All this rhetoric has me a bit confused. What is the bottom line (or is it
unknown). Can the CZ be midi-ed to the 106 without problems?
Todd.
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553.6 | 25 or 6 to 4 | AKOV68::EATON | PERSONAL_NAME="string" | Tue Oct 28 1986 15:40 | 14 |
| Yeah, it's confused me somewhat, also.
What I would like to know, specifically is that if one uses
the 106 (a six voice instrument) to drive the CZ (an eight voice
instrument), when seven keys are depressed will the CZ play seven
notes? Or will it be limited to the six that the 106 recognizes?
Does note-on info somehow pass through from the keys through the
sound-generating module before it is passed out of the machine as
transmitted MIDI data? Or do the keys send simultaneous messages
to the MIDI out DIN and the sound module of the master instrument?
Hope that makes it clearer.
Dan
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553.7 | YES | JAWS::COTE | MOVB #^B10011101,B^MASK | Tue Oct 28 1986 16:14 | 11 |
| From my experience the answer to your first question is "YES".
My DX will operate as two 4 note polyphonic synths in the split
mode. (Consider each half of the keyboard as a separate synth.)
If I play 5 notes on one half, the DX plays 4 of them and my
Mirage will play all 5.
The note-on info appears to be independent from the sound generating
info.
Edd
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553.8 | guess I obfuscated. | GNERIC::ROSS | untitled | Wed Oct 29 1986 08:23 | 10 |
|
Re -1 : 'Note info is separate from the voice generation.'
Gee, guys, that's what we were saying all along...
Glad it's confirmed for DX and Mirage.
Anyone find an exception?
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553.9 | Add Roland... | JAWS::COTE | MOVB #^B10011101,B^MASK | Wed Oct 29 1986 08:38 | 3 |
| Oh yeah, it also works when driving the JX3-P from the DX....
Edd
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553.10 | Yes, Yes, A Thousand Time YES! | ERLANG::FEHSKENS | | Wed Oct 29 1986 10:36 | 6 |
| My Juno-106 and CZ-101 are clearly compatible. In general the
keyboards send as many notes as you press; the synths play as many
as they can.
len.
|