Specifications

Chapter 69: DINR 341
tively. Alt-Start key-clicking (Windows) or Con-
trol-Option-clicking (Mac) the Arrow keys on
your computer keyboard performs the same
function.
Undo
Clicking the Undo button undoes the last edit to
the Spectral Graph Display. The Undo button
does not undo changes made to slider positions.
Using Broadband Noise
Reduction
Before you start using BNR, take a moment to
think about the nature of the noise in your ses-
sion and where it’s located: Is it on a single
track, or several tracks? Is it a single type of
noise, or several different types? The answers to
these questions will affect how you use BNR.
If there is a single type of broadband noise on a
single track, insert the BNR plug-in onto the
track. Solo the track to make it easier hear as you
remove the noise. If a single track contains dif-
ferent types of noise, you may need to use more
than one DINR insert to remove the other types
of noise. If multiple tracks contain the same
noise, you may want to bus them all to an Auxil-
iary Input so you can use a single DINR plug-in
insert. This will minimize the amount of DSP
you use.
To use Broadband Noise Reduction:
1 From the Insert pop-up on the track with the
noise, select BNR. The Broadband Noise Reduc-
tion window appears.
2 In the Edit window, select the noisiest portion
of the track—ideally, a segment with as little of
the desired signal as possible. This will make it
easier for BNR to accurately model the noise. If
the track contains a segment comprised of noise
only, select that portion.
3 Do one of the following:
• Start audio playback, and in the Broadband
Noise Reduction window, click
Learn. BNR
samples the first 16 milliseconds of the se-
lected audio and creates its noise signature.
– or –
• Locate and identify noise on the fly, during
playback, using BNR’s Learn Last Audio
mode. To do this, Alt-click (Windows) or
Option-click (Mac)
Learn. Begin playback,
and when you hear the segment that you
want DINR to sample as noise, click
Learn a
second time. BNR will build a noise signa-
ture based on the 16 milliseconds of audio
immediately preceding the second click.
4 Click Fit. BNR will fit a Contour Line to the
noise signature just created. If you want to create
a Contour Line that follows the noise signature
even more precisely, click
Super Fit. A Contour
Line with five hundred breakpoints is created.
5 To audition the effects of the noise reduction
interactively, in the Edit window, select a por-
tion of audio containing the noise. Then select
Options > Loop Playback and press the Spacebar
to begin looped audio playback.
6 Adjust the NR amount slider to reduce the
noise by the desired amount. To compare the
audio with and without noise reduction, click
Bypass.
Undo button