sccode = """
SynthDef.new(\\fdist,
{|bus, fdist, fdistfreq|
var osc;
osc = In.ar(bus, 2);
osc = LPF.ar(osc, fdistfreq);
osc = (osc * 1.1 * fdist).tanh;
osc = LPF.ar(osc, fdistfreq);
osc = (osc * 1.1 * fdist).tanh;
osc = LPF.ar(osc, fdistfreq);
osc = (osc * 1.4 * fdist).tanh;
osc = LPF.ar(osc, fdistfreq);
osc = (osc * 2 * fdist).tanh;
osc = osc*0.2;
ReplaceOut.ar(bus, osc)}).add;
"""

effect = SCEffect(
    shortname="fdist",
    fullname="fdist",
    description="Fdist effect",
    code=sccode,
    arguments={
        "fdist": 0,
        "fdistfreq": 1600
    },
    order=2,
)