Autodesk 64006-051108-9001 - Discreet Cleaner - Mac, Руководство пользователя

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The Audio Tab 83
Custom Notch Settings
The Custom option enables you to specify the center of the frequency notch you are removing
and the total width of the frequencies removed. Ideally, use as narrow a width as possible, so
that the Notch filter does not remove other parts of the audio.
The Custom setting also enables you to specify how many overtones are removed. Overtones
are frequencies that are multiples of the base frequency. For example, AC power line noise is 60
Hz in the US; in practice, its overtones (120 Hz, etc.) are significant, as well. Choosing two
overtones when removing a 60 Hz hum may be more effective than simply removing the base
frequency.
Experiment to determine the best settings when using the Notch filter. Start with no overtones
and a low-width setting while targeting the main noise frequency. After you find the frequency
of the main noise, expand the width until you eliminate the noise. If higher-pitched noise is
audible, try adding overtones to eliminate it.
Reverb
The Reverb filter produces the effect of sound reverberating through a room. This can make the
audio sound as if it were recorded in a large room or auditorium. Many producers add slight
amounts of reverb to their mixes in order to make the audio sound richer and more pleasant.
Unlike the other audio filters in Cleaner, reverb actually adds frequencies to the audio track,
instead of removing them. Using the Reverb filter may improve the subjective quality of the
audio but make your material harder to encode. For the best results, experiment to determine
what you like best with your material.
Reverb Custom Controls
Use the Reverb filter to sweeten the sound.
•
Decay — controls how fast the reverberations fade out, which alters the apparent size of
the room. Higher values equate to a larger room, which generates a longer delay between
reverberations and a slower reverb decay time. Values in the 50–70 range are often good
starting points.
•
Mix — controls how much the original signal is mixed with the reverb signal to make the
final output. Higher values add more of the reverb signal and make the reverb effect more
pronounced. Often this slider has a greater effect on the total reverb than the Decay slider.
Values from 10–30 are often good starting points. At high values, this filter can become
more of a special effect rather than a subtle enhancement.