A digital signal processor that makes dull songs sound sharper, as in brighter.

Strictly speaking, nobody really needs this DSP. It’s just that some people like the effect. If you want to compensate deficiencies in your playback equipment or listening environment, the convolver or the equalizer are more appropriate tools. ~ HA post

There are four interrelated DSPs enclosed, only use the last one, Noise Sharpening.

Noise sharpening can/should be used alone. ~ HA post

http://foosion.foobar2000.org/components/?id=delta