Kn0ck0ut is a free VST plugin (Win and Linux) that takes two mono inputs and spectrally subtracts one from the other. It can also retrieve centre-panned material from stereo input

kn0ck0ut-LV2 is released under the terms of the GPL version 3 (with the permission of st3pan0va).

In addition to the features of the original Kn0ck0ut, Kn0ck0ut-LV2 features:

• Improved performance through use of FFTW and more efficient buffering code.
• Completely variable FFT size and overlap amount controls.
• Experimental "Phase Compensation" option, which will perhaps preserve additional fidelity in certain cases.
• Restored Low-cut filter which was removed in later releases.

Visit: St3pan0va