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curve, curvek

convex or concave power curves

Syntax

iresult curve ival, ipower
kresult curve kval, kpower

iresult = curvek(ival, ipower)
kresult = curvek(kval, kpower)

Usage

curve is a wrapper of a simple power function.

Input values are expected to be between 0-1.

Outputs and arguments

iresult -- The output value.

i/kval -- Input value (expected to be between 0 - 1)

i/kpower (optional, default=1) --

  • i/kpower < 0.5: fast to approach 1
  • i/kpower > 0.5: slow to approach 1
  • i/kpower == 0.5 or 1.00: returns the value unchanged (straight line)

Example

See the example for curve.orc

curve
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instr Sound101

  ares vco2 curve(p4,p6),p5
  ;;apply a power curve to the amplitude (p4).
  kfr transeg 8000, 0.2, -5, p5*4, p3-0.4, 2, p5
  ares moogladder2 ares,kfr,0.6

send ares
endin

loopcode fillarray(6), "loopid1", {{

  ipower = seesaw(0.2,0.7)
  ;; select alternate power values for curve. Notice how it affects the amplitude swell. 

  arpi fillarray_i(n("Sound101"),0,1/8,0.9,0,ipower), fillarray_i(-2,0,2,4,6,8), fillarray_i(1/8),6 - 0.01,-1,1,-0.5
  ;; An arpeggiator with an amplitude fade-in

}},1

patchsig "Sound101", "outs"