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
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
9
N
SK
7F
Note Off (Soft Key release)
Off Note Velocity
8
N
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