The Native AAX Sonnox Oxford DeNoiser plug-in with its integrated de-hisser delivers surgical broadband noise reduction in real time. The process is based on a continual analysis of the input signal in order to build a noise profile. Alternatively use Freeze Mode to sample a section of audio containing just target noise. Simply define the threshold below which noise is removed, and use the Reduction slider to taste. Sonnox understands the delicate balance between removing noise and retaining the character of your original recording, so they have added a warmth control to return some richness and added a DIFF function to audition only the removed noise.