User Guide

Page 202 - 13. Other features
Pearl 2004 Manual v1 - 27th August 2004
Page
1 2 3 4 5 … 28 29 30
xx $00 $01 $02 $03 $04 … $1B $1C $1D
example $Cn $02 Console changes to Page 3
Turn on a playback: note on ($9n pp ll)
Note number (pp) = playback number, from 0 - 14 (decimal)
Key velocity (ll) = playback level, from 0 - 127 (decimal). 127=Full
example $9n $03 $40 Playback Fader 4 at 50% level.
(Note that Playback Fader numbers start at zero, so subtract one from
the number on the console to get the MIDI note number).
To Turn Off a playback, send a note on command with velocity=0. The
Pearl does not recognise MIDI note off ($8n) commands.
Stop/run/step a chase etc: after touch ($An pp cc)
Note number (pp) = playback number, from 0 - 19 (decimal)
Aftertouch value (cc) = control codes:
$00 stop chase
$01 run chase
$02 restart from step 1
$03 fade to next step using programmed fade times
$04 Snap directly to next step
13.2.3 MIDI Time Code
MIDI time code is used to synchronise Script Files with an external
music track.
Quarter-frame message types are fully supported and these follow the
standard format, which can be found in most MIDI handbooks. A
suitable EBU/LTC Timecode to Midi Timecode converter is manufactured
by JC Cooper Electronics whose address is 12500 Beatrice Street, Los
Angeles CA 90066 USA, or through Avolites UK.
13.2.4 MIDI Problems
The console supports a full MIDI data rate burst for 2 seconds, after
that data may be lost since it cannot be processed.
A MIDI debug Terminal is available which shows you the MIDI
commands being received by the Pearl. To activate this :
Turn the key to System, then Press Softkeys A, D, F. The MIDI terminal
window is displayed on the VDU screen. Turn the key to Run to finish.