Clipping (audio)

Is referred to as overdrive in the signal processing of the signal processing units of subjecting the input signals with out of the allowable input range. As a result of overdriving, unwanted effects such as non-linearities. Typically, rashes that go beyond the entrance, cut off. This effect is known as clipping (English to clip = cut, hats ).

For loops override can even lead to complete failure. In many circuits for frequency doubling overdrive is a prerequisite for the function.

About taxes for audio amplifiers

Override (English overdrive ) or abbreviated to drive referred to in the music that accidental or intentional causing a distortion in an electrically transported tone.

Operation

An amplifier may be caused by a too high input level or too high gain to saturation, in which the output signal is no longer true to form follows the input signal, but is clipped and distorted by it. The signal curve is "cut off" at the upper and lower peaks. Such processes one can imagine figuratively in the form of a sine curve that is flattened at the upper and lower lobes by means of two horizontal lines. If a single frequency input, result in the signal spectrum, only additional harmonics, called harmonics. If, simultaneously fed different frequencies ( with music), also always arise additional combination frequencies, ie the sums and differences of the original frequencies, because the amplifier will then work as a mixer.

Usually overload condition is undesirable; with musical effects devices, however, such an effect is often targeted. See Distortion. Guitar amplifier can be intentionally overridden by an excessive input signal, for example, in order to achieve a distortion of an instrument signal.

Transistor amps sound when overdriving particularly troublesome during tube amplifiers create a softer boundary of the signal. Therefore, some transistor amplifiers are equipped with a so-called soft- clipping, that is, a softer oversteer behavior.

Tube amplifiers and tube microphones ( triode ) that can generate non-linear distortions of square distortion in an asymmetric curve with only even harmonics at higher volumes increase, especially those partials shows that are related to the fundamental harmonic close. You have the THD k2, k4, k6, etc. shares of harmonics.