Plugin interface — screenshot pending
EQ

ReaFIR

Cockos

Where to get itIncluded with REAPERreaper.fm

ReaFIR is a multi-purpose plugin featuring five distinct modes—EQ, Gate, Compressor, Convolve L/R, and Subtract—each operating as an independent function. It combines surgical frequency-domain processing with flexible curve editing, offering capabilities from surgical EQ and multi-band compression to spectral noise reduction and frequency comparison between stereo channels.

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

Key Features

01Five independent modes: EQ, Gate, Compressor, Convolve L/R, Subtract
02FFT-based multi-band processing with user-defined frequency curves
03Real-time graph display with input, output, and analysis visualization
04Compressor mode with 1.01:1 to 100:1 ratio range and upwards expansion capability
05Subtract mode with automatic noise profile building
06Points (smooth) and precise edit modes for curve creation
07Finite impulse response (FIR) filter option to reduce aliasing artifacts

Things to Try

  • 01Set Gate floor threshold at -40.0 dB to eliminate unwanted background sounds like breathing
  • 02Use Compressor mode on frequencies above 100 Hz for de-essing effects at sibilant occurrence points
  • 03In Subtract mode, enable Automatically build noise profile while auditioning a section containing only the noise, then uncheck and save the preset
  • 04Hold Ctrl and drag the noise profile up or down to adjust subtraction intensity and artifact level
User Manual↗

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ReaFIR by Cockos | Plugin Library