Boss Audio Systems DR-670 User Manual

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Chapter 9 Connecting and Using External MIDI Devices (MIDI Mode)
Using An External MIDI 
Device to Play the DR-670/
Using the DR-670 to Play An 
External MIDI Device
You can use performance data transmitted from 
an external MIDI device to play the DR-670, or 
operate the DR-670 to control performances of 
external MIDI devices.
fig.09-08a
MIDI Channels
In order to exchange performance data between 
an external MIDI device and the DR-670, the 
MIDI channel settings must be the same for both 
devices. Performance data can be exchanged 
successfully only when the MIDI channels match.
Performance Data Handled by 
the DR-670
Note Messages
These are messages that convey the performance 
status of drum parts and bass parts. These are 
equivalent to the performance data for keys on a 
keyboard. The different kinds of Note messages 
are shown below.
Note Number:
 Key pad number to which an 
instrument or bass tone is assigned
Note On:
Key pad is tapped
Note Off:
Key pad is released
Velocity:
Force used to tap the key pad
◆ This correspondence of the DR-670’s key 
pads to Note Number as shown below.
fig.09-08b
When you tap one of the DR-670’s key pads, the 
Note Number for that key pad is transmitted.
When a Note Number is received from an 
external MIDI device, the instrument or bass 
tone assigned to the key pad corresponding to 
that Note Number is played.
* Note Numbers that do not correspond to any of 
the key pads are disregarded if received.
Program Change
This message switches the drum kit.
* Program Change messages are not output in 
Song Edit mode.
* For more information on the messages that can be 
handled by the devices you are connecting, refer 
to the owner’s manual for each device.
Setting the MIDI Channel
In order to have the performance data be 
transmitted and received correctly, the 
transmitting and receiving devices must be set to 
the same channel.
Settings Values: 1–16, OFF
fig.09-09
When set to “OFF,” Note and Program Change 
messages are not transmitted or received.
* Program Change messages are transmitted and 
received on the drum part MIDI channel.
MIDI Sound Module
Pad Controller
DR-670
MIDI IN
MIDI OUT
MIDI IN
MIDI OUT