Gain: When reducing noise, you’ll naturally be reducing the overall level of the audio.
You can adjust the overall gain here to compensate. By looking at the level meter
before and after applying the effect, you can see how much gain to apply to keep the
overall audio at the original level.
The Processing Focus control is a little less self-explanatory.
By default, the DeNoise effect is applied to the full frequency range of a clip—that means it
applies equally to low, medium, and high tone sounds. Using the Processing Focus control,
you can selectively apply the effect to particular frequencies. If you hover your pointer over
an option, a tooltip describes it, but you’ll probably be able to guess which is which from
the shape of the button icons.
7. Click to enable the Focus On Lower Frequencies option and play the clip again. This
sounds good, but let’s push the effect a little harder.
8. Drag the Amount slider up to around 80%, and play the clip again. Next, try setting the
slider to 100% and play the clip.
With the focus on the lower frequencies, even setting the effect to full allows the speech to
be audible, and the rumble is almost gone. Even with this more advanced control, you will
need to experiment to get the ideal result.
9. For now, set the amount to 80% and close the Clip Fx Editor – DeNoise window.
Note
When you modify effect settings, related options in the Essential Sound panel are marked
to remind you the settings have been customized.
Reducing reverb
The Reduce Reverb option works in a similar way to the Reduce Noise option. Let’s try it.
1. Listen to the the second clip in the sequence. The audio has strong reverb caused by the
hard surfaces at the recording location bouncing audio back to the microphone.
The background noise is less of a challenge in this clip, but the reverb is quite intense.
2. Select the clip and enable the Reduce Reverb option in the Essential Sound panel.
The difference is dramatic! Just as you finessed the Reduce Noise setting, you should