ReaFIR is an advanced FFT-based dynamics processor designed to enhance audio precision through detailed frequency manipulation. It supports a wide range of FFT sizes from 128 to 32,768, enabling fine control over frequency response. Users can define EQ curves either by specifying multiple points or drawing freehand, allowing for both linear phase mastering adjustments and precise surgical equalization. The plugin also offers per-band compression and gating with adjustable thresholds, making it a comprehensive tool for dynamic audio shaping.

One of ReaFIR’s standout features is its ability to build noise profiles and subtract unwanted noise from audio signals, improving clarity and overall sound quality. The frequency response display provides visual feedback that aids in crafting detailed audio profiles. This functionality is particularly useful for tasks like noise reduction, mastering, and detailed sound design, providing users with robust control over the spectral components of their audio.

ReaFIR comes as part of the free ReaPlugs VST FX Suite, known for its low CPU and memory usage alongside fast, intuitive user interfaces with effective metering. Compatible with various Windows versions and WINE, the suite requires no installation or copy protection, making it accessible and easy to use for producers seeking high-quality, configurable audio processing tools without restrictions.