Plugin interface — screenshot pending
Filter

FilterFreak

Soundtoys

Where to get itAvailable from Soundtoyssoundtoys.com

FilterFreak is a resonant filter plugin that combines classic analog hardware filter sounds with extensive modulation capabilities and customization options. It offers four filter types (Lowpass, Bandpass, Highpass, and Band Reject/Notch) with adjustable poles for varying filter steepness, plus six modulation modes including LFO, Rhythm, Envelope, Random, Step, and ADSR. The plugin is designed for both static filtering and dynamic, performance-driven sound manipulation, from funky envelope-follower effects to sci-fi sample-and-hold sounds, with a parallel version (FilterFreak 2) providing dual independent or linked filters.

Written from the manual and checked against it. How we check

Key Features

01Four filter types: Lowpass, Bandpass, Highpass, Band Reject/Notch
02Poles control from 2 to 8 (12–48 dB/octave slopes)
03Six modulation modes: LFO (0–100 Hz), Rhythm with Tap Tempo and Groove, Envelope Follower, Random (Sample and Hold), Step with trigger, and ADSR
04Shape Editor for custom LFO waveforms with Smoothing and five Smoothing Modes (Lin, Sin, Exp, Sym, Rev)
05Seven Analog Style saturation algorithms: Clean, Fat, Squash, Dirt, Crunch, Shred, Pump
06Rhythm Editor for custom patterns with bar, beat, and grid controls
07Stereo L/R Offset and L/R Mode (Normal/Flipped) for wide stereo effects
08FilterFreak 2 twin filters in Parallel or Serial mode with Frequency/Resonance/Gain linking

Things to Try

  • 01Set Resonance to maximum to drive FilterFreak into self-oscillation and create filter squeals, but lower the Output level first to avoid speaker damage
  • 02Use Serial mode in FilterFreak 2 with complementary filter types (e.g., Lowpass and Bandpass) and set modulation for each filter to move in opposite directions to create vocal-like Wah effects
  • 03Create complex rhythmic patterns in the Rhythm Editor by mixing different grid divisions (1/8, 1/16, 1/4) across multiple bars and adjusting the Groove control for Shuffle or Swing feel
  • 04Experiment with the seven Analog Style algorithms at high input levels to hear progressive saturation characteristics from Clean (hard clip) through Pump (extreme compression)
Formats
VSTVST3AUAAX
Official Website↗User Manual↗

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FilterFreak by Soundtoys | Plugin Library