DeFilter is designed to address tonal imbalances and problematic resonances in audio mixes. It effectively reduces resonant peaks, dips, and severe issues like comb filter effects or standing waves often caused by untreated rooms. The plugin can match recordings to specific target profiles such as music or speech, or alternatively extract the overall tonal character from the source while smoothing out narrow frequency irregularities. This approach preserves the natural timbre of the input signal while eliminating unwanted resonances.

The user interface prioritizes ease of use with customizable frequency-dependent correction curves, allowing precise focus on problematic frequency ranges without affecting other parts of the spectrum. Real-time spectrum analyzers for both input and output signals provide clear visualization of changes, making it simple to monitor and refine the equalization process. These features enable users to improve the clarity and balance of recordings quickly and efficiently.

DeFilter is ideal for fixing mix issues before mastering, reducing room-induced resonances, and applying matched equalization based on reference signals. It enhances speech intelligibility and provides an instant solution for comb filter problems. Available for Windows and macOS, DeFilter supports 32 and 64-bit systems in VST, AAX, and Audio Units formats, making it compatible with a wide range of digital audio workstations.