The filter section alltogether is a very important tool to edit the sounds to your needs, both in terms of making your own personal presets, and modulating the sound over time by automation. If you are not familiar with filters, you are really missing out on the fun!!

The filter is a simple 12dB 2-pole state variable filter with 4 different filter types, and the usual Cutoff and Resonance parameters. There is also a Depth parameter, that controls the amount of filtering applied to the sound. If you don't want to filter your sound, it is advised to turn the filter off rather than just turning down the Depth knob. If you turn off the filter by selecting 'Off' in the filter Type Drop-down menu, the sound will bypass the filter and the filter will not use any CPU resources. If you leave the filter on and just turns down the Depth knob, the sound will not be filtered, but the filter will still run in the background, ready for you to turn up the Depth knob.

when the filter is off, the knobs Cut, Reso and Depth are also disabled.

The parameters of the filter is controlled by 4 controls:
- The Type display drop-down menu (which controls the filter type)
- The Cut knob (which controls the filters cutoff frequency)
- The Reso knob (which controls the audio level around the cutoff frequency).
- The Depth knob (which controls the amount of filtering applied to the sound)


Type

To edit the filter type, left-click the Type parameter display, and select one of the following options from the drop-down menu:
- LP Low Pass (Only low range frequencies passes through the filter)
- BP Band Pass (only mid range frequencies passes through the filter)
- BR Band Reject (Low and High range frequencies passes through the filter)
- HP High Pass (Only high range frequencies passes through the filter)
- Off (The filter is bypassed and can not affect the sound)

Each filter type has it's own characteristic way of influencing the sound timbre. If you have no experience with filters, you are best off playing around with the different filter types to get a general idea of how they work - choosing the right filter types for your instruments can improve the sound of your productions!


Cut

This knob controls the cutoff frequency of the filter. The knob ranges from 0 - 1000 (0 - 20.000 Hz). Cut will have no effect if the filter is turned off. Depending on the selected filter type, the Cut knob will act on the sound respectively. Tweak it while trying out the different filter types to get familiar with the sonic possibilities of sound filtering - sweeping the frequencies with a decent resonance value can be really satisfying!


Reso

The resonance parameter controls the strength of the filters effect (technically it controls the apmlitude of the frequencies around the cutoff point). Low settings will make the filter cutoff sound softer, and high settings will enhance the filters cutoff effect to give it more of a wah-wah effect. The resonance really matters, especially when you want to modulate the filter cutoff.


Depth

This knob will mix the clean original signal with the filtered signal. If you turn the Depth knob all the way up, only filtered sound will be heard. If you turn the Depth knob all the way down, only clean original sound will be heard - if you set the Depth knob at middle position, equal amounts of clean original sound and filtered sound will be mixed. Mixing the filtered and the original signal will alter the timbre of the sound. The Depth parameter can also be used to fade-in filter effects by automating the knob.