Boss Audio Systems BR-900CD User Manual

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Synchronizing with MIDI Devices
Using MMC
MMC stands for “MIDI Machine Control.” This is a protocol 
that uses MIDI System Exclusive messages to remotely 
control multiple recording devices from one device. Your BR-
900CD supports the MMC protocol. 
By using MMC, your BR-900CD can send commands such as 
PLAY, STOP, and FF to connected MIDI devices to operate 
them.
Some MIDI devices do not support the BR-900CD’s MMC 
functionality. If so, it will not be possible to operate them 
from the BR-900CD using the procedures described here. For 
details on the MMC functionality supported by the BR-
900CD, read “MIDI Implementation” (p. 216).
Operating MMC-compatible 
devices with the BR-900CD
This section explains how to make settings for synchronizing 
the playback with a computer-based sequencer program that 
supports MMC and MTC. Make connections as shown in the 
diagram below.
fig.05-409
The BR-900CD will be the master for MMC and MTC.
Follow the procedure given below to operate the play, stop, 
fast-forward and other functions of a sequencer program 
with the BR-900CD.
1. Press [UTILITY].
2. Press CURSOR [
] [
] to move the cursor to 
“SYNC,” and press [ENTER].
fig.05-410d
3. Press CURSOR [
] [
] to select “MMC Master,” and 
turn the TIME/VALUE dial to set the MMC mode.
fig.05-411d
OFF:
MMC will not be transmitted.
ON:
MMC information is sent. The BR-900CD 
becomes the master of the external MIDI 
instrument.
* For details on the MMC functionality supported by the BR-
4. Press CURSOR [
] [
] to select “Sync Gen,” and 
turn the TIME/VALUE dial to set “MTC.”
5. Make settings on your sequencer software.
Make the following settings on your sequencer software. 
For details on making these settings, refer to the manual 
for your sequencer software.
MTC: 
receive
MTC type:
 same setting as the MTC Type selected on the 
BR-900CD
MMC:
 
receive
6. Press [UTILITY] (or press [EXIT] repeatedly) to return 
to the Play screen.
* During updating, “Keep power on!” appears in the upper line 
of the display, while the lower line shows what is being 
processed.
MIDI IN
MIDI OUT