Control Aftertouch; Midi Machine Control Command (Mmc); Previewing - Akai MPD32 Operator's Manual

CONTROL AFTERTOUCH

The knobs and faders on the MPD32 can also be
set to transmit AFTERTOUCH information.
Please see 'Editing Knobs and Faders' (page
15) for more information on setting knobs and
faders to transmit Aftertouch.

MIDI MACHINE CONTROL COMMAND (MMC)

MIDI MACHINE CONTROL (MMC) is commonly
used to send transport control messages to
hardware record or playback machines.
example, pressing [PLAY] on the MPD32 sends an
MMCPLAY message to a connected multi-track
recorder, which begins playing. When you press
[STOP] on the MPD32, the deck also stops.

PREVIEWING

When the [PREVIEW] button is held down, and a
fader or knob is moved, the LCD displays the
screen on the right.
assigned event and the last sent value of moved
knob or fader. While the [PREVIEW] button is held,
the fader of knob will not be transmitting any
information until [PREVIEW] is released and the
fader or knob is used again. At that point, the fader
or knob will begin transmitting from the value
selected in the New Value field while in Preview
mode.
THE ADVANTAGES OF PREVIEWING
The [PREVIEW] button allows you to see what value will be sent by a controller, without actually sending the
value. This gives you precise control over your parameters and helps avoid erroneous controller data being
sent to your devices due to the physical position of the controller. For example, imagine that fader S1 is
being used to send three different MIDI CC numbers, depending on the control bank which you are currently
in. Let's assume that S1 is assigned to MIDI CC#10 in control bank A and MIDI CC#11 in control bank B.
While in control bank A, you adjust S1 (MIDI CC#10) to a value of 40. Now you switch over to control bank B
and adjust S1 (MIDI CC#11) to a value of 80. If you now switch back to control bank A and try to adjust S1
(MIDI CC#10), you will notice that the transmitted values will begin at 80 (instead of 40), due to the physical
location of the fader. To prevent these jumps in control values, you can hold down [PREVIEW] and move S1
back to a value of 40 (which will be shown in the "Last" value readout on the display). The fader will not be
transmitting information while the [PREVIEW] button is held down.
"Last" value, you can release the [PREVIEW] button. Adjusting S1 (MIDI CC#10) will now give you a nice
starting point at a value of 40.
The display shows the
MIDI PORT
AND CHANNEL
PAD BANK
For
CONTROL
CHANGE NUMBER
LAST VALUE
SENT
Once you reset the fader back to its
7
AFTERTOUCH
INDICATOR
MMC
COMMAND
LAST VALUE
SENT
AFTERTOUCH
VALUE
VALUE IS ALSO
DISPLAYED WITH
BAR METER.
NEW VALUE
NEW VALUE