Perfect for post production, audio forensics and musical applications alike, NS1 instantly analyzes and adapts to your signal in real-time, bringing the foreground into focus as it Audacity is a free, open-source, cross-platform noise ca n celling software that is compatible with Mac, Windows, and Linux computers. It can be resized freely and has standard meters as well as time graphs. The ERA Noise Remover will help you get hassle-free high-quality results! The ERA Noise Remover is designed to reduce not just noise, but most importantly the effort and time required to get your audio right! Features.