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.
www.stockvault.net. Owning a Wah-Wah pedal can add a new dimension to your guitar playing. Though using a Wah pedal in rehearsal or on a gig can be fun, dealing with a malfunctioning or broken pedal can be an unnecessary problem.