39
Basic use
Two MIDI ports
Some sequencer software that supports MIDI controllers lets you independently specify the
MIDI input port used for recording MIDI tracks (the
“MIDI IN port”
) and the MIDI input port
used to control the software (the
“CTRL IN port”
).
fig.midi-port.e
Normally, you will connect your MIDI keyboard to
the MIDI IN port, and use it for recording your
performance on tracks or using the MIDI Thru
function of your software to play sound modules or
soft synthesizers. The MIDI messages sent here have
the meaning that is assigned to them by the MIDI
specification. In other words, when you play the
keyboard, note messages will be transmitted and
recorded on the track, and the sound module that
receives these messages will produce sound.
fig.midi-port2.e
In contrast, the data received from the CTRL IN port
is used to operate your software in the same way as
data from your computer’s mouse or keyboard; it
will not be recorded on the tracks or
“thru-ed”
to
your sound module or soft synthesizer. The MIDI
messages sent here are interpreted in a completely
different way than defined in the MIDI specification.
For this reason, messages that are input from the
CTRL IN port are not normally
“thru-ed”
to your
sound module or soft synthesizer.
For example, even if you play your keyboard to send a note-on message, the software that
receives this message will not produce a note; instead, it might interpret this message as
meaning that the PLAY/STOP button had been pressed.
* The actual operation that will occur will depend on the software you are using.
fig.midi-port3.e
Since the same MIDI message can be interpreted in
completely different ways, as described above, the
software lets you specify the MIDI IN port and CTRL
IN port separately so that the two types can be
distinguished.
When the PCR-A30 is connected via USB, you can
select either of the two MIDI ports (PCR-A 1, PCR-A
2) as the output destination for MIDI messages
produced by the faders, knobs, and buttons of the
PCR-A30.
In other words, by assigning
“PCR-A 1”
as your
software’s MIDI IN port and
“PCR-A 2”
as its CTRL
IN port, you can do things like using the fader and button operations to control mixer
operations in your software while using the knobs to edit your software synthesizer.
The output destination of the MIDI messages transmitted when you operate the PCR-A30’s
faders, knobs, and buttons can be specified separately for each controller. (
Sequencer software
MIDI IN port
MIDI OUT port
CTRL IN port
Record on
tracks
Software
synthesizer
Track
Track
THRU
MIDI sound module
PCR-A30
Track
Track
THRU
Sequencer software
MIDI IN port
MIDI OUT port
CTRL IN port
Record on tracks
Software
synthesizer
PCR-A30
Track
Track
PCR-A 1
PCR-A 2
THRU
MIDI IN port
MIDI OUT port
CTRL IN port
Record on tracks
Software
synthesizer
MIDI sound module
Sequencer software
PCR-A30_e2.book 39 ページ ２００３年１０月２２日 水曜日 午後３時１９分
