User Manual

Table Of Contents
Noise Reduction
A repair plug-in designed to reduce a wide variety of noise in all kinds of recordings. Based on
spectral subtraction, it’s able to automatically detect noise in sections of dialog, or it can be
used manually by “learning” a section of noise that can be subsequently extracted from the
signal. A graph shows a spectral analysis of the audio being targeted, along with a purple
overlay that shows what noise is being targeted. Two audio meters let you evaluate the input
level (to the left) versus the output level (to the right), to compare how much signal is being lost
to noise reduction.
The Noise Reduction FairlightFX in action
Noise Reduction has the following controls:
Bypass: Toggles this plug-in on and off.
Auto Speech Mode/Manual radio buttons: These buttons toggle the overall
functionality of the Noise Reduction plug-in between two modes:
Auto Speech Mode: Specifically designed for human speech/dialog, applying dialog
extraction to the incoming signal to dynamically detect the noise profile outside of
the detected speech. As a result, Auto Speech Mode does not require an initial a
“learn” pass, and adapts itself better to noise that changes over time.
Manual Mode: Enables the Learn button, as this mode requires the user to locate
a section of the audio recording that is only noise that the plug-in can analyze.
To initiate this analysis, position the playhead at the beginning of a section of
the recording that is only noise, click the Learn button so it’s highlighted, and
play forward through the noise, stopping before any sound you want to preserve
is reached, and clicking the Learn button to turn it back off. A noise profile is
generated (shown in Purple on the graph), which is subsequently extracted from the
remaining signal.
Threshold (in dB): Relates to the signal-to-noise ratio (SNR) in the source recording.
Recordings with a poor signal-to-noise ratio will require a higher threshold value,
resulting in more noise reduction being applied.
Chapter – 159 FairlightFX 3308