BRZ2

a special fixed band-reject filter UGen. Implements the formula :

out(i) = 0.5 * (in(i) + in(i-2))

This filter cuts out frequencies around half of the Nyquist frequency.

===Examples===

// engage with mouse button
play {
 val sig = WhiteNoise.ar(0.5)
 val flt = BRZ2.ar(sig)
 LinXFade2.ar(sig, flt, MouseButton.kr(-1, 1))
}