FabFilter Twin 2 Help
Drag-and-drop modulation slots
FabFilter Twin 2 has four multi-mode stereo filters. The two main filters are put right after the oscillators and the other two are used within the delay section. The filters can be routed in three modes: serial, parallel and per oscillator/delay. Every filter can be switched between low-pass, high-pass, and band-pass responses with 12, 24 and 48 dB/octave slopes and a staggering amount of eleven different high-quality filter characteristics that define the unique sound and overdrive of the filter. They range from smooth with moderate overdrive to raw, self-oscillating and over-the-top! All characteristics have been tuned very carefully, using our state-of-the-art FabFilter filter technology.
For every filter the following parameters are available:
Frequency
The filter frequency is adjustable over the entire audio range. The Frequency controls the
center or cut-off frequency of the filter and can be controlled in real time, either
manually, via modulation, or via external devices using
MIDI.
Pan
The Pan ring around the Frequency knob lets you filter the left and right channels
differently. It works as a stereo balance setting for the center frequency of the filter. For
example, when you turn the Pan knob to the left, the left channel will be filtered with a
lower center frequency, and the right channel will be filtered with a higher center
frequency. You can use this to create various stereo filtering effects and thus it makes for
a great modulation target.
Peak
The Peak knob adjusts the resonance of the filter. A little resonance will cause the filter
to create warmer and more characteristic tones. At maximum resonance, the filter will
self-oscillate with most filter characteristics.
Characteristic
FabFilter Twin 2 lets you choose between 11 different filter characteristics:
Response
The response of each filter can be set to either Low Pass, High Pass, or Band Pass. In Low
Pass mode, the filter will pass through frequencies lower than the center frequency. In High
Pass mode, frequencies higher than the center frequency will be passed through. In Band Pass
mode, only the frequencies around the cut-off frequency will be passed through.
Slope
The slope sets the steepness of the filter, which controls how aggressively the frequencies
around the center frequency are filtered. You can choose between 12 dB/octave, 24 dB/octave
or 48 dB/octave settings. For example, if the response is set to Low Pass, more high
frequencies will be passed above the cutoff frequency using at 12 dB/octave than at 48
dB/octave. But let your ears decide! Just listen to the sound as you move the filter around
and see if you like it...
Routing
The routing of the filters can be changed. The different settings are clearly graphically
represented in the interface. There are three different setups:
Tip: The section presets button next to the routing button lets you store and
retrieve all filter parameters as a section preset, which is very useful for accessing often-used
combinations of parameters.
Each filter is visually represented as a component button. By clicking on the component button and dragging, you can directly alter the most important filter parameters:
Click on a button to open the full filter interface (shown in the screen shot above) that provides access to all parameters. For other component shortcuts, see Component buttons.
Next: Interactive filter display
See Also
Oscillators
Modulation
Overview