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 |
Trained on thousands of voice and noise samples. Uses deep learning to isolate speech even under heavy background (e.g., traffic, café noise). noise removal plugin free
Extremely effective for steady-state noise (air conditioners, preamp hiss). Can cause “underwater” artifacts if reduction set too high (>30 dB). No learn function; you must manually set threshold
Records a noise print from a selection of audio (silence section), then subtracts that exact spectral shape. Works like iZotope RX’s Voice De-noise but free. Uses deep learning to isolate speech even under
Instead of broadband subtraction, it compresses/expands specific frequency ranges when they fall below a threshold. Effectively ducks hiss in silent passages.
Exceptional for podcasts, vocals. Zero artifacts on voice. CPU heavy (~10–12% per instance). Requires SSE4.2 CPU.