Tuesday, April 20, 2010

Guitar Effects.

Guitar Effects are electronic devices that affect the sound of an electric or electronic instrument or other audio source.















Effects can be used in real time,during a live performance or in post production, with recorded vocals and instruments.

An effects unit consists of analog and digital circuitry with processes audio signals.In some cases, effects processing circuitry is similar to that found in music synthesizers.

Effects units come in several formats, the most common of which are the stomp-box and the rack-mount unit. A "stomp box" (or "pedal") is a small metal or plastic box containing the circuitry which is placed on the floor in front of the musician and connected in line with the patch cord connected to the instrument. The box is typically controlled by one or more foot-pedal on-off switches and it typically contains only one or two effects.

Tone

Overdrive and distortion

Overdrive is a gain and distortion obtained by pushing tubes to their limit, which creates warm, rich sounding.If the valve is driven harder, the compression becomes more extreme and the peaks of the waveforms are clipped.


Wah-wah pedal

An effect which mimics the human voice by sweeping the peak response of a filter up and down in frequency to create a spectral glide.The device is operated by a foot treadle that opens and closes a potentiometer.




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