sccode = """
SynthDef.new(\\stretch,
{|amp=1, sus=1, pan=0, freq=0, vib=0, fmod=0, rate=1.0, bus=0, blur=1, beat_dur=1, atk=0.01, decay=0.01, rel=0.01, peak=1, level=0.8, buf=0, pos=0, room=0.1|
var osc, env;
sus = sus * blur;
rate = In.kr(bus, 1);
osc = Warp1.ar(2, buf, Line.kr(0,1,sus), rate, windowSize: 0.2, overlaps: 4, interp:2);
osc = osc * EnvGen.ar(Env([0,1,1,0],[0.05, sus-0.05, 0.05]));
osc=(osc * amp);
osc = Mix(osc) * 0.5;
osc = Pan2.ar(osc, pan);
	ReplaceOut.ar(bus, osc)}).add;

"""

synth = SCInstrument(
    shortname="stretch",
    fullname="Stretch",
    description="Stretch synth",
    code=sccode,
    arguments={}
)