3.0

Table Of Contents
Anti-noise
: In this mode, the DeNoiser works in an optimized mode to remove particularly "noisy" distortions.
Anti-hum
: In this mode, the DeNoiser works in an optimized mode to remove tonal disturbances. This includes
feedback from power cables, power humming, PC fans, video cameras, or ventilation noises.
If the option "Max. damp tonal noise" is active, then this type of distortion will be completely removed.
The "Reduction" controller affects all possible existing disturbances. This is a sensible step, since tonal
disturbances are much more annoying than other noise ? a small amount of "extra" noise in the recording
may be allowed in order to avoid a greater loss of highs throughout the desired signal.
This option can be found in "Hum" mode under the "Noise level" controller in place of the "Adaptive"
parameter (not available in "Hum" mode).
Processing section
Quality
: The quality of the calculation can be set in two stages. You can set the values in the standard quality
setting precisely without influencing the playback in any way and select high quality for burning once the
material is ready.
Noise level
: The threshold of the noise reduction function should be set as precisely as possible. Values that are too
low will exhibit too low a distortion dampening level and result in artifacts like noise or "twittering" (see
below). High settings produce dull results ? useful signals that sound similar to hissing noises are also
filtered away. Take your time to find the best setting for the individual case. If the "Adaptive" option is
activated, the setting is relative, i.e. in addition to automation.
Reduction
: This sets the balance between the original signal and the signal with the applied noise reduction. It's often
better to reduce interference signals by 3 to 6 dB rather than as much as is possible to keep the sound
"natural". For buzzing, it's best to apply complete removal.
Adaptive
: The value for the "Noise level" parameter is set automatically by setting the level of the hiss present in
the signal. The advantage of this is that if a distortion is not constant, the noise level always adapts to the
current distortion. If the noise sample is not calculated from the signal that is to be edited, but rather uses
a preset to do so, the difference between the strength of the distortion in the audio material and in the
noise sample will be equalized automatically. If the noise sample has been calculated from the signal being
edited and the distortion is constant, then the "Adaptive" setting should not be used.
Removed noise
: The part of music that was filtered out by the DeNoiser can be previewed for testing purposes.
DeRumble
: Here you can activate a special filter for deep-frequency rumbling noises. Examples of such distortions
are mechanical noises from old record players, wind, and subsonic noises in microphone recordings.
Preset
: All the DeNoiser's settings, i.e. the noise sample applied and the settings of the processing section can
be saved as a preset for later use.
Artifacts
When the settings are not correct, the Denoiser and the Dehisser can produce a metallic shrieking or
tweeting sound, the so-called artefacts. This is caused by the incomplete elimination of the disturbing
noise. The ear is very sensitive for this sound. However, this problem only appears in a few very
problematic cases.
In order to obtain the best results you should take the following hints into account:
Choose first on of the preset values from the selection menu. This will produce satisfying results in
most of the cases.
Page 86