FabFilter Pro-C 3 is a professional compressor plug-in with very high quality sound, flexible side chain options, beautiful program-dependent compression styles, authentic analog coloration, and a stunning user interface.

The Pro-C 3 app filters the microphone input and plays it back in real-time. To use Pro-C 3 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-C 3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

Key features:

– Fourteen different compression styles: Versatile, Smooth, Upward, TTM, Op-El and Vari-Mu in addition to the Clean, Classic, Opto, Vocal, Mastering, Bus, Punch and Pumping styles from Pro-C 2
– Polished and user-friendly interface, with (optional) animated level knee displays and accurate peak/loudness metering
– Three types of realistic analog saturation, coloration and drift: Tube, Diode and Bright
– Side-chain EQ section with a maximum of six bands offering many filter types and LP/HP Brickwall slopes
– Program-dependent attack and release curves
– Variable lookahead (up to 20 ms), which can be enabled/disabled to ensure zero-latency processing
– Host tempo triggering for rhythmic compression
– Intelligent Auto Gain
– Auto Threshold for level-independent compressor triggering
– Hold (up to 500 ms)
– Custom knee, variable from hard knee to a 72 dB soft knee (to enable saturation-like effects)
– Auto Release
– Up to 32x oversampling
– Variable stereo linking and mid/side processing, with mid-only, side-only, M > S and S > M processing
– Audition Triggering option, which enables users to hear on which parts of the audio FabFilter Pro-C 2 is triggering and how much compression is being applied
– Range setting, which limits the maximum applied gain change
– Mix setting, which scales the gain change from 0% to 200%
– Accurate, large level and gain meters, with peak and loudness level visualization (which complies with the Momentary mode of the EBU R128 / ITU-R 1770 standards)
– External side-chain triggering
– Optional MIDI triggering
– Undo/redo and A/B comparison

“Pro-C is set to become a staple of many professionals' toolkits. Everyone needs a good compressor, and there are few as good as this. A future classic. Verdict: 10/10!”
— MusicTech Magazine

“From its excellent sound quality to its extensive feature set and in- formative interface, Pro-C is a must-have dynamics processor.”
— Electronic Musician