ALLEN & HEATH SQ-6

 10
MIDI Protocol – ISSUE 1
3.2 Soft Keys
The SQ Soft Keys can be controlled using standard MIDI Note On/Off
messages, allowing the control of many more internal functions of the SQ by
proxy.
 The SQ does not send note on/off messages when a Soft Key is pressed unless the Soft
Key is set to a MIDI note on/off function. See the Soft Keys and Footswitch section for
more details.
A key press is triggered with note on and a release is triggered separately with
a note off, this means it is possible to replicate a held key (i.e. for use with the
talkback function).
Each Soft Key is controlled with a different sequential note starting at C3 (30).
Note On (Soft Key press)
On Note Velocity
9N SK 7F
Note Off (Soft Key release)
Off Note Velocity
8N SK 00
Both where: N= MIDI Channel, SK = Soft Key Note
 The SQ will respond to both MIDI note off standards, i.e. a specific note off message or a
note on message with zero velocity.
Examples:
Soft Key, MIDI Ch
Message (Press)
Message (Release)
Soft Key #1, Ch1
90 30 7F
80 30 00
Soft Key #7, Ch5
94 36 7F
84 36 00
SoftKey Note HEX SoftKey Note HEX SoftKey Note HEX SoftKey Note HEX
1
C3 30
5
E3 34
9
G#3 38
13
C4 3C
2
C#3 31
6
F3 35
10
A3 39
14
C#4 3D
3
D3
32 7
F#3
36 11
A#3
3A 15
D4
3E
4
D#3 33
8
G3 37
12
B3 3B
16
D#4 3F