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Chapter 4. Connecting External Devices
Connecting MIDI Devices
By connecting an external MIDI device and exchanging
performance data, you can control the performances on one
device from the other. For instance, you can output sound
from the other instrument or switch tones on the other
instrument.
■
What’s MIDI?
MIDI stands for Musical Instrument Digital Interface, an
international standard which allows performance
information to be communicated among electronic musical
instruments and computers.
The HP101 provides MIDI connectors, which allow
performance data to be exchanged with external devices.
When these connectors are used to connect the HP101 to
external devices, an even wider range of possibilities
becomes available.
*A separate publication titled “MIDI Implementation” is also
available. It provides complete details concerning the way
MIDI has been implemented on this unit. If you should require
this publication (such as when you intend to carry out byte-
level programming), please contact the nearest Roland Service
Center or authorized Roland distributor.
Connection Examples
* To prevent malfunction and/or damage to speakers or other
devices, always turn down the volume, and turn off the power
on all devices before making any connections.
Playing the HP101 from a MIDI sequencer/
Recording an HP101 performance on a MIDI
sequencer
fig.midi2.e
* Set Local Off if you have connected the HP101 to a MIDI
sequencer. Refer to “Switching Local Control On and Off” (p.
27). Also set your MIDI sequencer to MIDI Thru mode (so
that messages received at MIDI IN will be re-transmitted
without change from MIDI OUT). For details, refer to the
owner’s manual of your MIDI sequencer.
Perform on the HP101 to play a MIDI sound
generator
fig.midi1.e
■
MIDI Send Channel Settings
MIDI features sixteen MIDI channels, numbered 1–16.
Simply connecting a cable is not enough for communication
to take place. The connected devices must be set to use the
same MIDI channels. Otherwise, no sound will be produced,
and no sounds can be selected.
* The HP101 receives all channels 1–16.
When the HP101 is turned on, Channel “1” is selected.
1.
While holding down the [Metronome] and [Reverb/
Key Touch] buttons, press the appropriate key (C6–
E 7) on the keyboard.
The MIDI transmit channel will switch to the number
that corresponds to the note you pressed.
HP101
MT Series
* MT-90s has no MIDI Out connector.
InOut
MIDI
HP101
Sound Module
OUTTHRU IN
MIDI
C7C6 C8
121
2791114164
356810 13 15
Press
While holding down
two buttons...
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