Akai MPD26 Manuale Utente
5
CONTROL
CHANGE NUMBER
CHANGE NUMBER
NEW VALUE
NEW VALUE
LAST VALUE
SENT
LAST VALUE
SENT
MIDI MACHINE CONTROL (MMC)
MIDI MACHINE CONTROL (MMC) is commonly
used to send transport control messages to
hardware record or playback machines. For
example, pressing [PLAY] on the MPD26 sends an
MMCPLAY message to a connected multi-track
recorder, which begins playing. When you press
[STOP] on the MPD26, the deck also stops.
used to send transport control messages to
hardware record or playback machines. For
example, pressing [PLAY] on the MPD26 sends an
MMCPLAY message to a connected multi-track
recorder, which begins playing. When you press
[STOP] on the MPD26, 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. The display shows the
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.
MMC
COMMAND
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 1 is being
used to send three different MIDI CC numbers, depending on the preset which you are currently in. Let’s
assume that Fader 1 is assigned to MIDI CC#10 in Preset 1 and MIDI CC#11 in Preset 2. While in Preset 1,
you adjust Fader 1 (MIDI CC#10) to a value of 40. Now you switch over to Preset 2 and adjust Fader 1 (MIDI
CC#11) to a value of 80. If you now switch back to Preset 1 and try to adjust Fader 1 (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 Fader 1 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. Once you reset the fader back to its “Last” value, you
can release the [PREVIEW] button. Adjusting Fader 1 (MIDI CC#10) will now give you a nice starting point at
a value of 40.
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 1 is being
used to send three different MIDI CC numbers, depending on the preset which you are currently in. Let’s
assume that Fader 1 is assigned to MIDI CC#10 in Preset 1 and MIDI CC#11 in Preset 2. While in Preset 1,
you adjust Fader 1 (MIDI CC#10) to a value of 40. Now you switch over to Preset 2 and adjust Fader 1 (MIDI
CC#11) to a value of 80. If you now switch back to Preset 1 and try to adjust Fader 1 (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 Fader 1 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. Once you reset the fader back to its “Last” value, you
can release the [PREVIEW] button. Adjusting Fader 1 (MIDI CC#10) will now give you a nice starting point at
a value of 40.