Peavey PC1600X User Manual page 39

Midi command station
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NOTE:
Any Note 0ff will erase the whole chord, even though the other notes may still be sounding. If you play 3
notes, release 1 of them, then add another (still 3 soundings, then press "ENTER", the last note will be the
only one recorded.
Therefore whenever you are going to release any notes (because the chord is not yet complete) release all the
notes and retrigger the whole chord.
You will not see the note stream on the screen until after you press the "ENTER" button. The string will start
with a "9x" (where the x is the note record channel – 1) followed by the first note number, then the first note
velocity, etc.
(Only one status byte - we're using running status here.) The velocity bytes can be changed to 'rv" so that the
incoming MIDI velocity (or fader position) gets substituted allowing "Dynamic" remote button playing.
The following screen shows a "dynamic" C major triad on Channel 1 (starting with Middle C):
So now that we know how to trigger chords remotely, how do we turn them off? There are two ways to do it.
The easy and memory-efficient method is to use the MIDI ALL Notes of command. This is a channelized
command that tells a Synth/MIDI device to release all of the notes that were triggered on that channel. The
command is defined as continuous controller #123 (7Bh) with a data value of zero:
All Notes 0ff command for:
channel 1: B0 7B
channel 2: B1 7B
You can use Prs/Rls strings with the chord on the press and the All Notes 0ff message (same channel of
course) on the release. This will act like a normal "Gated" triggering system (like a keyboard). You could
also insert the All Notes Off command in regular "Press Only" strings ahead of the chord so pressing any
button will release the previous chord before slaving its own chord before playing its own cord also letting
you release the button without releasing the chords. Just remember to program one of the buttons as an "All
Notes Off" only, so you can silence the sound source when needed.
You may find that the ALL Notes Off command doesn't work correctly in your system. There are some
Synths/MIDI devices out there that do not respond to the All Notes Off message and even some that respond
to it incorrectly.
Some units will "Kill" the notes abruptly instead of releasing them (as a Note Off would) and some others
will apply the message to all notes in the unit not just the ones that were generated on the same MIDI
channel as the ALL Notes Off message itself. If your Synth/devices respond correctly great! If not. You'll
have to send matching Note Off commands after the Note On commands.
The PC1600x won't record Note Off streams but there is a fairly easy way to handle this for the "Gated"
mode.
After recording the chord into the press string, record the same chord into the release string and then either
change the "9X" at the start of the string to an "8x" (Which will give you control over release velocity) or
change all the velocity bytes to zero which will convert the Note On's to Off's.
BTN01:
String
90 3C rv 40 rv 43 rv
00
00
Peavey PC1600X User Manual (rev-h)
39

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