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Fig. 6.2: Using the ULTRAFEX PRO as sidechain processor
Within a sidechain scenario, the original signal must be muted by depressing the SOLO switch, so that
phase cancellations (comb filter effects) and additional noise will be effectively avoided.
Pre-monitoring of the solo signal will only allow for a rather restricted evaluation of the sound, since this signal
only provides sound enhancement if combined with the original signal.
6.2 Basic Settings
We recommend setting the controls as indicated in the following three sections. This will give you a better
idea of switch and control functionality:
1. Set the BEHRINGER ULTRAFEX PRO to bypass mode (IN/OUT switch not depressed), the TUNE controls
to center position and all switches to their OUT position.
2. Turn all other controls fully CCW and depress both IN/OUT switches. Now turn the MIX controls of the low
and high-frequency sections slowly clockwise until the fundamental bass and high frequencies become
more emphasized and the sonic image begins to open up or to widen.
3. The quality of the sound enhanced signal can be adapted to the program material by varying the cut-off
frequency using the SHIFT and MODE switches and/or the TUNE and PROCESS controls.
4. Now switch in the noise reduction section by depressing the AUTO NR switch and adjust the NR
SENSITIVITY controls so that the first LED lights up, even with low signal levels and all LEDs are fully
illuminated with loud signals.
+ Please note that the NR SENSITIVITY control does NOT have the same effect as the DRIVE
control on other exciters. This control is not effecting the Natural Sonic processor, but controlling
the filter circuit which is responsible for noise-reduction. Excessively high sensitivity will not
produce audible distortion, however, the noise level might increase during signal pauses.
When using enhancers or exciters it is easy to get carried away. Therefore, we recommend regular A/B
comparisons (IN/OUT) while setting the controls, in order to constantly check the signals integrity.
Rule of thumb: the enhancers effect only should be noticeable when it is lacking, but not when it is present!
Listening at high volume levels over long periods (in studios, for example) leads to listening fatigue and thus
reduces sensitivity to higher frequencies. Regular pauses keep your hearing healthy and exaggerated
sound processing should be avoided.
6. APPLICATIONS