--- /dev/null
+
+declare name "pink -- pink noise";
+declare author "Albert Graef";
+declare version "1.0";
+
+import("music.lib");
+
+// control variables
+
+vol = nentry("vol", 0.3, 0, 10, 0.01); // %
+pan = nentry("pan", 0.5, 0, 1, 0.01); // %
+
+// pink noise filter (-3dB per octave), see musicdsp.org
+
+pink = f : (+ ~ g) with {
+ f(x) = 0.04957526213389*x - 0.06305581334498*x' +
+ 0.01483220320740*x'';
+ g(x) = 1.80116083982126*x - 0.80257737639225*x';
+};
+
+// pink noise generator
+
+process = (noise:pink)*vol : panner(pan);