OBS Studio as a built‑in filter: Right‑click mic → Filters → “Noise Suppression” → Method: RNNoise . That gives the same effect without needing librnnoise-vst.dll .
If you need a free, lightweight, real-time solution that works in anything (even a $200 laptop), librnnoise-vst.dll is unbeatable. If you need studio-grade transparency, pay for iZotope RX or NVIDIA Broadcast. librnnoise-vst.dll