Roland AR-3000R MP3 Player User Manual


 
105
Applications
Controlling the AR-3000R Using MIDI
Signals (MIDI Control)
What Is MIDI Control?/What You
Can Do with MIDI Control
MIDI stands for “Musical Instrument Digital Interface,” and
is a unified worldwide standard allowing the exchange of
performance information and the like between electronic
instruments and computers. You can connect any device
conforming to the MIDI standard with a MIDI cable, and
then transmit performance data and control the device’s
operation and settings.
With the AR-3000R, you can do things like those described
below using MIDI signals.
You can record and play back MIDI signals from an
external MIDI device in the same manner as with audio
phrases.
For more about recording and playing back MIDI signals,
refer to “Recording and Playing MIDI Data” (p. 82).
You can use MIDI signals from an external MIDI device as
control signals for controlling playback of audio and MIDI
phrases.
You can use MMC and MTC signals from an external MIDI
device for remote control and synchronized operation.
You can use received MMC signals to start and stop
recording and playback of audio phrases (p. 110).
What Is MMC?/Remote Control from Another Device
p.
110
By using MMC and MTC signals in combination, you
can synchronize playback of audio phrases to video
equipment or the like.
What Is MTC?/Synchronized Playback with Video
Equipment and the Like
p. 112
Also see the “MIDI Implementation Chart” (p. 144), which
allows easy confirmation of the MIDI messages that the unit
can send and receive, and “MIDI Implementation” (p. 139),
which gives detailed MIDI specifications.
Glossary of Selected MIDI Terms
MIDI messages:
These are messages conveyed by MIDI
signals. These messages are necessary for playing
performances on an external MIDI sound generating device.
They include note messages for playing and stopping notes,
as well as Control Change and System Exclusive (SysEx)
messages, which can modify and enhance the expressive
capabilities of performances.
Note number:
This is a number assigned to each key (note)
on the keyboard of an electronic musical instrument.
Numbers are assigned in semitone steps, with middle C (C4)
set at 60 and the numbers from 0 to 127 indicating the
positions of the keys on the keyboard. On the AR-3000R
these are used to specify phrases.
Note On:
This is a message that provides information on
when the keyboard of a MIDI instrument is fingered.
Note On Velocity:
This is a message that provides
information on the force (velocity) used when pressing a key.
Note Off:
This is a message that provides information on
when the keys of a MIDI instrument are released.
Program Change:
This is a message that provides
information for switching sounds on an electronic
instrument. On the AR-3000R, this is used to switch phrase
sets in groups of 100.
Control Change:
MIDI instrument performances use a
variety of controllers, not just for the keyboard. The MIDI
message that conveys such controller action is the Control
Change. The AR-3000R receives and acts upon Panpot and
Expression messages.
Playback of Phrases Using
MIDI Signals
This plays back audio and MIDI phrases using MIDI signals
from an external MIDI device as control signals.
Phrase playback can be controlled by the different types of
MIDI messages, including Note On/Off, Note On Velocity,
Panpot, and Expression.
* Note that simultaneous recording and simultaneous playback
of audio phrases and MIDI phrases is not possible.
* Phrases for which RDAC-Mode is set to MODE2 cannot be
synchronized with MTC.
In addition to these, you can use Exclusive (SysEx) messages
to control starting and stopping for recording and playback,
make settings for recording, and specify phrases. For more
information, refer to MIDI Implementation (p. 139).
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