User Manual

WAVELAB
11 – 264 Spectrum Editor
Damp
This is used to attenuate the level of a region. The Gain parameter speci-
fies the level of the attenuation (although less commonly used it is also
possible to set positive gain values, i.e. to boost the frequencies in the re-
gion). Three filter types are available to perform the damping:
• Pass-band filter
All frequencies in the region are equally attenuated.
• Low-pass filter
Higher frequencies in the region will be attenuated more.
• High-pass filter
Lower frequencies in the region will be attenuated more.
For the Low- and High-pass filters, a low Filter steepness setting is nor-
mally used (around 6 to 18dB).
Blur peaks
This filter operation analyzes the region to find the frequencies with the
highest level. The level of these frequencies will be attenuated (or boosted)
according to the set Gain value. If the gain is negative, these frequencies
will be “blurred” and disappear in the mix as a whole. The purpose of the
filter is to mask the loudest frequencies (e.g. it could be used to eliminate a
sudden burst of pitched but unwanted sound in the audio material, like
acoustic feedback).
This mode works best with the Infinite steepness setting, which is auto-
matically selected when “Blur peaks” is used. You can, however, freely
set any Filter steepness setting. The filter type options are not available
when this mode is selected.
Dispersion
This is a special filter that “smears” the dynamics and pitch of the region,
without changing the actual frequency content. This works best on lower
frequencies, to mask the identity of a signal without changing the average
frequency spectrum.
This mode works best with the Infinite steepness setting, which is auto-
matically selected when Dispersion is used. You can, however, freely set
any Filter steepness setting. The filter type options are not available when
this mode is selected.
Dispersion can also be used to create special effects as it warps the
sound in a unique way.