Comb Filter hollows out the sound by carving out frequencies at each multiple of the base frequency, like the teeth of a comb.
The Comb Filter will mix the signal with a delayed version of itself, creating a filter with repeated troughs and peaks across the spectrum. It's also possible to process left and right differently in a way that not only gives a wide stereo effect, but also collapses right back to the original signal when mixed to mono:
- Cutoff display - Cutoff setting for the filter, the distance between each peak.
- Polarity - The polarity setting swaps troughs for peaks and vice versa, with the plus setting having a peak at 0 Hz, and the minus setting a trough at 0 Hz.
- Stereo - The stereo setting flips the polarity setting for the right channel, allowing the the comb filter to be used for mono compatible stereo widening.
- Mix knob - The dry/wet mix of this effect. A lower value will let some of the unmodified signal through.
- Settings panel - Whenever you have your mouse cursor over a snapin theree is a small arrow at the top right corner (not visible in screenshot). It opens a settings panel where you handle presets.
- Enabled checkbox - The small checkbox to the left of the plugin name is a checkbox that bypasses the effect when disabled.
- Resize handle - The bottom right corner of all Kilohearts plugins is a resize handle for scaling the UI to any size. This allows you to get a good view of the controls whatever the screen resolution, and also comes in handy if you need big controls, e.g. when using Comb Filter as a real-time effect on a touchscreen monitor during a live set. (This is not available when the snapin is used inside a snapin host.).
Comb Filter shines on it's own, but it was primarily created to power up the different "Snapin Hosts" Kilohearts offer. These are bigger effects units that utilize all the available snapins and give you a really fun and creative workflow for combining them in any way you can think of. So have a look at Snap Heap and Multipass right now.
Comb Filter is also available as a Rack Extension for Reason over at the Propellerhead shop.