The Noise Reduction enhancement suppresses distracting noise in an audio file.    
The following setting options are available:
Graph
Spectral Subtraction Profile

Maps the interfering signal.

Button

Switches between a linear and logarithmic scale for the limiting frequency graphic.

Slider
Gain Floor

Specifies the level of noise reduction when some noise is to be retained.

Slider
Reduction Level

Specifies the level of noise reduction.

The following setting options are available in the Mode area:
Option button
Automatic Noise Analysis

Automatically analyzes the audio file in relation to noise.

Button
Freeze

Fixes the noise curve in the spectral subtraction profile and uses this as a reference signal.

Option button
Editable Noise Curve

Inserts handles into the noise curve in the spectral subtraction profile; these can be used to edit the curve.

Option button
Noise Print

This is automatically activated after the implementation of the noise analysis and after the first time the noise suppression is called.
The noise curve generated by the noise analysis can be edited.

Button
Residual Output

Only plays back the noise signal.

 


Noise Reduction