Noise Removal Plugin [new] Free -

No learn function; you must manually set threshold. GUI is basic but functional. 3.2 ReaFIR (Cockos) – Most Powerful | Aspect | Details | |--------|---------| | Developer | Cockos (part of REAPER) | | Type | FFT-based subtractive / dynamic EQ | | Formats | VST, AU (free standalone) | | OS | Windows, macOS, Linux | | Key feature | “Subtract” mode with noise profile capture |

CPU usage ~2–4% on modern i7. Minimal latency (under 10ms). Artifacts are controlled well in “Modern” mode.

No free plugin matches iZotope RX’s machine learning or spectral repair, but for removing hiss, hum, and ambient noise, the above four plugins are professional-grade and cost nothing. noise removal plugin free

No “musical noise” artifacts. Great for cleaning high-frequency hiss (tape, converters) without damaging transients. Requires careful band setup.

Instead of broadband subtraction, it compresses/expands specific frequency ranges when they fall below a threshold. Effectively ducks hiss in silent passages. No learn function; you must manually set threshold

Extremely effective for steady-state noise (air conditioners, preamp hiss). Can cause “underwater” artifacts if reduction set too high (>30 dB).

Uses an adaptive noise floor estimation with adjustable thresholds. Unlike simple gates, it reduces noise across all frequencies proportionally. Minimal latency (under 10ms)

Exceptional for podcasts, vocals. Zero artifacts on voice. CPU heavy (~10–12% per instance). Requires SSE4.2 CPU.