Roland BR-864 - Manual (Page 146)

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Mixing the output from an external MIDI device
with the output from your BR-864 (Audio Sub Mix)
The Audio Sub Mix function allows you to mix the signal
input from LINE IN with the signal output to LINE OUT.
When performing synchronized playback using the BR-864
and an external MIDI device, you can use the Audio Sub Mix
function to mix the output from the external MIDI device
with that of the BR-864 internally, within the BR-864 so you
won’t need an external mixer.
Also, since you can output the signal from the MIDI device
without having to first record it to a track on the BR-864, you
can use the BR-864 tracks more effectively.
fig.05-501
fig.05-502
Using the Audio Sub Mix function
1. Press [UTILITY].
2. Press CURSOR [ ] [ ] to move the cursor to “SYS,”
and press [ENTER].
fig.05-503d
3. Press CURSOR [ ] [ ] to select “Sub Mixer,” and
turn the TIME/VALUE dial to turn the setting “ON.”
fig.05-504d
4. Press [UTILITY] (or press [EXIT] repeatedly) to return
to the Play screen.
5. Turn the LINE SENS knob to adjust the sensitivity to
the input from the external MIDI device.
Even when the AUDIO SUB MIX switch is turned on, if you
press INPUT SELECT [LINE], illuminating its indicator, the
signal from LINE IN that passes through the recorder/mixer
block is given priority, and the AUDIO SUB MIX function
will not work.
External Mixer
OUTPUT
MIDI
IN
MIDI
OUT LINE
OUT
Sub Mixer : OFF
OUTPUT
MIDI
IN
MIDI
OUT LINE
OUT
LINE
IN
Sub Mixer : ON