UFO Filter is a stereo filter plugin from Épica Audio that modulates cutoff or resonance with an LFO, morphs between low-pass and high-pass, and adds saturation. It runs as VST3, AU and AAX on Windows and macOS.
UFO Filter combines a switchable analog-style filter core with a flexible LFO and a built-in drive stage. The LFO can move cutoff or resonance, and the filter can be set to low-pass, notch or high-pass. Drive adds harmonic saturation inside the filter path. A Mix control blends the effect with the dry signal, and a true bypass makes comparison easy. The plugin is aimed at producers who want rhythmic or evolving filter motion on drums, synths, guitars and vocals.
The filter core offers Low-Pass, Notch and High-Pass types, covering 20 Hz to 18 kHz. Resonance (Q) ranges from gentle emphasis up to self-oscillation, and you can switch filter type on the fly to change the tone instantly.
The LFO modulates either Cutoff or Resonance (Q). It offers five waveforms: Sine, Phasor, Square, Sample & Hold and Random. Speed can be synced to host tempo for rhythmic filter movement or run free for looser, more organic motion.
Drive runs from subtle warmth to full saturation, with a range of 0.1 to 7. It adds harmonic content as the signal passes through the filter, and its harmonics interact with Resonance for extra bite.
Mix blends the filtered signal with the dry path from 0 to 100 percent. Output trim covers −20 dB to +20 dB for gain staging, and true bypass allows a clean comparison.
Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.
| Developer | Épica Audio |
|---|---|
| Type | Plugin |
| Category | Filter |
| Formats | VST3, AU, AAX |
| Operating systems | Windows, macOS |
| Architecture | 64-bit |
UFO Filter is available in VST3, AU and AAX (Pro Tools) formats. It runs on Windows and macOS, with 64-bit support only.
On macOS, you need macOS 11 Big Sur or later, with Intel and Apple Silicon supported through a native universal build. On Windows, you need Windows 10 or 11 64-bit with at least 4 GB of RAM.
No. It is licensed as a one-time purchase with one license covering all of your machines.
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