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.
About Effects Pedals: Effects pedals, or stompboxes, are effects units designed to sit on the floor or a pedal board and be turned on and off with the user's feet. Typically, effects pedals house a single effect.