Diagram of normal sinus rhythm as seen on ECG. In atrial fibrillation the P waves, which represent depolarization of the top of the heart, are absent.
The wah-wah pedal is based on a simple concept but its effect is far more dramatic. Using a powerful filter to sweep through a broad frequency spectrum, the wah pedal boosts and exaggerates specific tones. Creating sounds that range from thick, flubbery bass to scratchy, stinging treble.
I want to use a pedal to send MIDI messages to the PC, so probably an expression pedal through an interface. While I will use it to control a Wah in Amplitube at times, I do not want to hook up a Wah. Sorry if I wasn't clear...