Midi Expression Control - Xpresense The Wag Owner's Manual

MIDI Expression Control

In this tutorial, you will use the WAG MIDI OUT to control volume. This assumes that you have
an effect unit that allows midi control of volume. The standard MIDI CC number for volume
control is 007 so we use that here. If you are controlling something that doesn't have volume
control, you will need to change the MIDI CC number at the Base Unit to match a CC number in
the MIDI table found in your effects unit manuals. We also assume you are using MIDI channel
1. Otherwise, you will need to change this at your effect unit or at the Base Unit so that they
match. Our Factory patches have been set up to control some common effects units. See
Appendix C.
Tips 'N Tricks
Midi , while more complex, allows you to use expression control, switch effects on/off, switch effects
patches, and combinations of the above over a single cable!
Tutorial 3 - MIDI Expression Control
Instruction
Make your normal audio connections between your guitar,
1
effects, and amplifier.
Connect a MIDI cable from the WAG MIDI OUT jack to the
2
MIDI input of an effects unit that uses MIDI for effects control.
With the Menu knob set to PATCH, use the Value knob to
3
select a MIDI Patch 01 (default).
Depending on your effects gear, you may have to configure
4
your effect unit to receive MIDI and set other options.
Be sure that the ring is awake
5
Now, strum a chord on your guitar then open and close your
6
finger or hand.
Now have fun. Now, strum a chord on your guitar while you open and close your hand; you
should hear a change in the sound as you control the effect with the WAG. Squeeze or open your
finger/hand with each played note of an arpeggio or slow strum. You should be able to
selectively apply effects modulations (e.g., Volume or WAH) to full chords or individual notes
in a solo.
Comments
For now, don't connect the Pedal Output to
anything.
See Patch Reference (Appendix C). If your
equipment is not listed try using PATCH 02
which uses a standard MIDI CC value (007) for
volume control.
Please refer to your effect unit manual. MIDI
Channel 1 is our default.
The bar graph cursor should move in PATCH
view
You should hear a change in the sound as you
control the effect using the WAG.
User's Manual
page 10