Boss Audio Systems BR-900CD - Manual (Page 216)

216
DIGITAL RECORDING STUDIO Date: Jan. 11, 2005
Model BR-900CD Version: 1.00
MIDI Implementation
1. TRANSMITTED DATA
* This message is transmitted according to a SMF data regardless of the followings when
the data is played.
■Channel Voice Message
●Note On
If the MIDI parameter “RhyMIDI ch” is set to “1–16,” note numbers/velocities
corresponding to the Rhythm pattern will be transmitted on the MIDI channel that is
specified for the Rhythm.
Status Second Third
9nH mmH llH
n = MIDI Channel No.: 0H - FH (ch.1 - ch.16)
mm = Note No.: 00H - 7FH (0 - 127)
ll = Velocity: 01H - 7FH (1 - 127)
●Note Off
If the MIDI parameter “RhyMIDI ch” is set to “1–16,” note numbers corresponding to the
Rhythm pattern will be transmitted on the MIDI channel specified for the Rhythm.
Status Second Third
8nH mmH llH
n = MIDI Channel No.: 0H - FH (ch.1 - ch.16)
mm = Note No.: 00H - 7FH (0 - 127)
ll = Velocity: 40H (64)
❍Notes sounded by the Rhythm correspond to note numbers as follows.
Rhythm Tone Note Number
Cross Stick G 1 (31)
Metronome (click) A 1 (33)
Metronome (bell) A#1 (34)
Kick C 2 (36)
Snare D 2 (38)
Tom 4 F 2 (41)
Closed hi-hat F#2 (42)
Tom 3 A 2 (45)
Open hi-hat A#2 (46)
Tom 2 C 3 (48)
Crash cymbal C#3 (49)
Tom 1 D 3 (50)
Ride cymbal D#3 (51)
Cowbell G#3 (56)
■System Common Messages
●MIDI Time Code Quarter Frame Messages
If the Sync parameter “Sync Gen” is set to “MTC,” quarter frame messages of the time code
type specified by “MTC Type” will be transmitted when the BR-900CD is running
(recording or playing). The transmitted time counts are summed to “SMPTE (MTC) Offset
Time” as the song top is “00:00:00:00”.
Status Second
F1H mmH (= 0nnndddd)
nnn = Message type: 0 = Frame count LS nibble
1 = Frame count MS nibble
2 = Seconds count LS nibble
3 = Seconds count MS nibble
4 = Minutes count LS nibble
5 = Minutes count MS nibble
6 = Hours count LS nibble
7 = Hours count MS nibble
dddd = 4 bit nibble data: 0h - FH (0 - 15)
Bit Field is assigned as follows.
Frame Count xxxyyyyy
xxx
Reserved (000)
yyyyy Frame No. (0-29)
Seconds Count xxyyyyyy
xx
Reserved (00)
yyyyyy Seconds (0-59)
Minutes Count xxyyyyyy
xx
Reserved (00)
yyyyyy Minutes (0-59)
Hours Count xyyzzzzz
x
Reserved (0)
yy Time Code type
* The time code types defined by the MIDI specification correspond to the BR-900CD Sync
parameter “MTC Type” as follows.
MIDI specification setting “MTC Type” setting
0 = 24 Frames/Sec 24
1 = 25 Frames/Sec 25
2 = 30 Frames/Sec (Drop Frame) 29D
3 = 30 Frames/Sec (Non Drop Frame) 29N or 30
zzzzz Hours (0–23)
●Song Position Pointer
The current position is transmitted by the Song Position Pointer Message when the BR-
900CD is stopped, or the locate operation has been performed, if the SYNC parameter “Sync
Gen” is set to “MCK.”
Status Second Third
F2H mmH nnH
mm (LSB), nn (MSB) = Song Position Point: 00H 00H - 7FH 7FH
■System Realtime Message
Transmitted when “Sync Gen” is “MCK” in the SYNC parameter.
●Timing Clock
Status
F8H
●Active Sensing
Status
FEH
* This is transmitted at intervals of approximately 200 msec.
●Start
Status
FAH
●Continue
Status
FBH
●Stop
Status
FCH