Filter
Top Products
Programming
10
AXB-MIDI MIDI Interface
SEND_STRING MIDI,"$B0 + (MIDI_CHANNEL - 1), CONTROLLER, VALUE"
Specific example set volume to 50% on MIDI ch 5:
MIDI_CHANNEL = 5
5 - 1 = 4
$B0 + 4 = $B4,
The standard MIDI Volume controller is 7,
127 * 50% = 64 (approximately), thus the send string,
SEND_STRING MIDI,"$B4, 7, 64"
Selected MIDI controller numbers:
BANK SELECT MSB = 0
VOLUME = 7
PAN = 10
EXPRESSION = 11 (* A SECOND VOLUME CONTROL *)
GENERAL PURPOSE CONTROLLER # 1 = 16
GENERAL PURPOSE CONTROLLER # 2 = 17
GENERAL PURPOSE CONTROLLER # 3 = 18
GENERAL PURPOSE CONTROLLER # 4 = 19
BANK SELECT LSB = 32
HOLD = 64 (* 2nd data byte of 63 or less = OFF,
64 or greater = ON *)
REVERB SEND = 91
EFFECTS 2 DEPTH = 92
CHORUS SEND = 93
EFFECTS 4 DEPTH = 94
EFFECTS 5 DEPTH = 95
ALL SOUND OFF = 120 (* 2nd data byte is always "0" *)
RESET ALL CONTROLLERS = 121 (* 2nd data byte is always "0" *)
The Control change is denoted by status byte $B0 (for MIDI channel 1) through status byte $BF (for MIDI
channel 16), followed by two data bytes.
PRGM EX. 4
MIDI_CHANNEL = 6
6 - 1 = 5
$90 + 5 = $95
Note = 60
Velocity = 96, thus the send string,
SEND_STRING MIDI,"$95,60,96"
To turn the same note off:
SEND_STRING MIDI,"$95,60,0"
Specific example, Middle C (Note #60) on, on MIDI ch 6. If you're not sure what velocity to use try some-
thing between 64 (half) and 127(full), how about 96?
PRGM EX. 5