CuspL

A linear-interpolating sound generator based on the difference equation:

x[n+1] = a - b * sqrt(abs(x[n]))

===Examples===

// vary frequency
play { CuspL.ar(MouseX.kr(20, SampleRate.ir), 1.0, 1.99) * 0.3 }

// mouse-controlled parameters
play { CuspL.ar(SampleRate.ir/4, MouseX.kr(0.9, 1.1, 1), MouseY.kr(1.8, 2,1)) * 0.3 }

// as a frequency control
play { SinOsc.ar(CuspL.ar(40, MouseX.kr(0.9, 1.1, 1), MouseY.kr(1.8, 2, 1)) * 800 + 900) * 0.4 }