Alesis QS6.1 Reference Manual page 26

Modulation Wheel. The [MODULATION] wheel has also been around pretty
¥
much forever in synth design. It got its name because it is typically used to add
varying levels of modulation (such as vibrato or tremolo) while you play. But it
isnÕt limited to that. It can also be used to create Òfilter-openingÓ effects, to
raise and lower volume, to pan signals from left to right (by crossfading between
two separately hard-panned Sounds), to select between layers, to lengthen a
reverb time, and lots more. It all depends on the individual Program settings.
¥ Controller Sliders A-D. These sliders can control any parameter that has been
assigned to them (which may change from Program to Program). They are
particularly useful when you want to have several related controls close at
hand, for quick adjustment.
¥ Sustain Footswitch. If you connect a footswitch to the [SUS PEDAL] jack on your
QS6.1Õs back panel, you can use it to hold down notes after your lift your finger
from the keyboard. In some Programs Ñ piano and acoustic guitar sounds, for
example Ñ such held notes will naturally decay within a time set by the
ProgramÕs parameters. In other Programs Ñ like organs, woodwinds, and many
synth sounds Ñ theyÕll sound for as long as you keep the footswitch depressed.
¥ Expression Pedal. Think of this as a Modulation Wheel for your feet. All you
have to do is connect a volume-type pedal to the [PEDAL 1] jack on the QS6.1Õs
back panel, and you can use foot action to control pretty much any Program or
Effect parameter that you want. Some obvious uses include changing volume,
raising and lowering vibrato rates, increasing reverb depth or delay repeats,
etc. But thatÕs hardly the limit, so we invite you to see what you can come up
with by experimenting for yourself.
QS6.1 Reference Manual
Overview: Part 2
25