FabFilter Twin 2 Help
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:
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.
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.
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.
FabFilter Twin 2 lets you choose between 11 different filter characteristics:
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.
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...
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.