Kn0ck0ut-LV2 was designed for vocal extraction in digital music by doing spectral subtraction.
It can be used also be used for other effects, specially extracting or removing the middle part of a two channel audio. Kn0ck0ut-LV2 needs a host for LV2 plugins in order to use it.
Extract centre: switches center extraction on or off
FFT: 4096x4 uses less CPU but with lower quality. Recommended settings is 8192x8 if possible.
Blur: Spectral blur is added to R channel input.
R Input Gain: Control the gain for the right input channel.
Low Cut: sets the threshold for cutting the low frequencies.
High Cut: sets the threshold for cutting the high frequencies.
Output gain: basic gain control