Ableton Live Intro Manuel d'instructions télécharger pdf (Page 277)

CHAPTER 20. LIVE AUDIO EFFECT REFERENCE 275

An X-Y grid helps to visualize Saturator's shaping curve. The shaper's input and output values

are mapped to the X and Y axes, respectively. The curve denes the transfer function, which

is the extent to which output values uctuate in relation to input values. Because this is

usually a nonlinear process, the incoming signal is reshaped to a greater or lesser degree

depending upon its level at each moment in time.

Incoming signals are rst clipped to the dB level set by the Drive control. The meter on the

right side of the display shows how much Saturator is inuencing the signal.

Signal shaping has six xed modes: Analog Clip, Soft Sine, Medium Curve, Hard Curve,

Sinoid Fold and Digital Clip. There is also the exible Waveshaper mode, featuring six

adjustable waveshaping parameters.

In the Analog Clip and Digital Clip modes, the signal is clipped completely and immediately.

Soft Sine, Medium Curve and Hard Curve modes soften signal clipping to varying degrees.

Sinoid Fold mode can be good for special effects.

The most dramatic effects can be created by selecting the Waveshaper curve, which has its

own dedicated set of controls. To access these six parameter elds, unfold the Saturator

window by toggling the button in its title bar.

The Waveshaper mode's six additional parameters are: Drive, Lin, Curve, Damp, Depth and

Period.

Drive determines how much the input signal will be inuenced by the Waveshaper

parameters. Setting Drive to zero will negate the effect entirely.

Lin works together with the Curve and Depth parameters to alter the linear portion of

the shaping curve.

Curve adds mostly third-order harmonics to the input signal.

Damp attens any signal near the grid's origin. It behaves like an ultra-fast noise gate.

Depth controls the amplitude of a sine wave that is superimposed onto the distortion

curve.

Period determines the density of ripples in the superimposed sine wave.

The DC button activates a DC lter at Saturator's input stage. This is mainly useful for

removing DC offsets from audio material that contains them.

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Vikinin 04 Jan 2024 | 12:03:19

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Ableton Live Intro Manuel d'instructions Page 277