Quote:
Originally Posted by ark  An expression pedal is a different beast from a volume pedal.
A volume pedal takes an audio signal in and produces an audio signal out that varies in volume based on the position of the pedal.
An expression pedal has a resistance that varies based on the pedal position, and is intended to be connected to an appropriate device. Most MIDI keyboards are equipped to be connected to an expression pedal.
The Yamaha FC9 has two channels. One of them always functions as a volume control; the other can be switched between volume (so you can use it for stereo signals) and expression.
If you want to trigger sustain, you probably want a pedal that switches on or off rather than one that produces a varying value. There are lots of those on the market; right now I'm using a Yamaha FC4. |
It sounds as if volume and sustain are different than expression. What, exactly is expression. You mentioned "resistance", but I don't understand what you mean. Thanks.