Viscount DB-3, User Manual

Page: 30 / 36

DB-3
Drawbar Organ
DETAILED MIDI IMPLEMENTATION
CHANNEL MESSAGES
Note On
Message which is generated when a key is pressed.
This message is transmitted by the keyboard version
only.
9nH kkH vvH
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
kk=note number : 00H – 7FH (0 – 127)
received
: 24H – 60H (36 – 96)
transmitted
vv=note on velocity : 01H – 7FH (1 – 127)
: 00H (0) Note Off
- In MIDI Mode 1 the notes are transmitted and
received using the upper channel only. The received
notes are played according to the split points setted
(see also chapt. 5.2).
- In MIDI Mode 2 the notes are transmitted and
received using the upper and lower channels only.
The bass notes are played according to the bass
split point.
- In MIDI Mode 3 the notes are transmitted and
received using the upper, lower and bass channels
only. The bass notes are played until the maximun
extension allowed is reached.
Note Off
Message which is generated when a key is released.
This message is transmitted as Note On with velocity=0
and by the keyboard version only.
8nH kkH vvH
9nH kkH 00H
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
kk=note number : 00H – 7FH (0 – 127)
vv=note off velocity : 00H – 7FH (0 – 127)
ignored
Control Change
Messages which control some parameters as volume,
reverb, rotary, etc.
Each type of Control Change message is assigned to a
specific control number.
•
Volume (CC 7)
Message which controls the sections volume.
BnH 07H vvH
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
vv=volume value : 00H – 7FH (0 – 127)
- This message is transmitted and received on the
section (Upper, Lower and Bass) channel only.
•
Expression (CC 11)
Message which controls the sections expression.
BnH 0BH vvH
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
vv=expression value : 00H – 7FH (0 – 127)
- This message is transmitted and received on the
section (Upper, Lower and Bass) channel only.
- In MIDI Mode 1 this message controls the upper
expression.
-
In MIDI Mode 2 if this message is received on the
upper channel, it controls the upper expression. If it
is received on the lower channel, it controls the lower
and bass expression.
-
In MIDI Mode 3 this message controls the sections
expression according to the channel setted.
•
Drawbars level (CC 20 – 21 – 22 – 23 – 24 – 25 –
26 – 27 – 28)
These messages control each drawbar level.
BnH xxH vvH
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
xx=drawbar : 14H (drawbar 16’)
: 15H (drawbar 5’ 1/3)
: 16H (drawbar 8’)
: 17H (drawbar 4’)
: 18H (drawbar 2’ 2/3)
: 19H (drawbar 2)
: 1AH (drawbar 1’ 3/5)
: 1BH (drawbar 1’ 1/3)
: 1CH (drawbar 1’)
vvH=drawbar level : 00H – 7FH (0 – 127)
- These messages have to be received on the Upper
channel only.
•
Rotary On / Off (CC 29)
This message controls the Rotary on / off switch.
BnH 1DH vvH
n=MIDI channel number : 00H – 0FH (ch.1 – ch.16)
vv=Rotary switch : 00H – 3FH (Rotary off)
: 40H – 7FH (Roraty on)
-
In MIDI Mode 1 and 2 if this message is received on
the Lower (MIDI Mode 1 only) and Bass channels it
is ignored.
-
In MIDI Mode 1 this message controls the general
volume.
- In MIDI Mode 2 if this message is received on the
upper channel, it controls the upper volume. If it is
received on the lower channel, it controls the lower
and bass volumes.
- In MIDI Mode 3 this message controls the sections
volume according to the channel setted.
56