Roland BR-900CD 用户手册

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页码 232
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 
(36)
Snare D 
(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