18 ARTURIA – KeyLab – USER’S MANUAL
2.3.3 Sustain pedal
Plug in a momentary footswitch here. It is pre-assigned to control the sustain parameter
(MIDI CC #64), but the MIDI Control Center software allows you to specify other
behaviors if you like. You could use it to transmit a MIDI note, for example.
2.3.4 Auxiliary (Aux) pedal
This also works with a momentary footswitch. It is pre-assigned to control MIDI CC #12
by default, but with the MIDI Control Center software you can alter its MIDI assignment
easily.
2.3.5 Breath controller input
There is nothing better for realistic woodwind and brass performances than a breath
controller, the kind that were sold alongside the FM synthesizers of yesteryear. There are
still innovative companies like Kelfar Technologies that make breath controllers today.
2.3.6 USB connector (powering the KeyLab)
Use this port to connect the KeyLab to your computer. That sounds simple, but there are
two very important things to remember:
If you have a “tower-style” PC, be sure to use the USB ports on the back, not the
front, as noted in the Tech Tip in section 2.3.1.
If you plan to use a USB hub, use a powered USB hub only. A non-powered
USB hub will not supply enough power for reliable operation, and you could
damage your computer and the USB hub if you try.
Seriously, read the previous two bullet points! Not all USB ports supply the same amount of electricity.
2.3.7 DC In (optional power supply)
Although the KeyLab series is powered by its USB port, you can also use a DC adapter if
you don’t want to take your computer to the gig. That being the case, simply connect an
optional 5V DC 500mA adapter to the DC IN connector.
