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Paints the area between the two selected Sounds.

The following script paints the area enclosed between a sine tone of 5 Hz and the straight line y = x/2.
   s1 = Create Sound from formula: "sine", "Mono", 0, 1, 10000, ~ 1/2 * sin(2*pi*5*x)"
   s2 = Create Sound from formula: "line", "Mono", 0, 1, 10000, ~ x / 2
   plusObject (s1)
   Paint enclosed: "Grey", 0, 0, -1, 1, ~ yes

© djmw 20170829