added springverb & rearranged effects

effects/springverb.scd

@@ -0,0 +1,44 @@
+b = Buffer.read(s, "/home/lcoogan/snd/demos/springverb.wav")
+
+(
+{
+    PlayBuf.ar(1, b!2, 1, loop: 1) * 0.3
+}.play;
+)
+
+(
+SynthDef(\springverb, { |length = 1, fb = 0.8, sep = 0.012|
+    var input = In.ar(0, 2);
+    var output = input + Fb({ |feedback|
+
+        var left, right, spring, magic;
+        magic = LeakDC.ar(feedback * fb + input);
+        magic = HPF.ar(magic, 400);
+        magic = LPF.ar(magic, 5000);
+        magic = magic.tanh;
+
+        // Simulate spring reverb inside the feedback loop
+        spring = CombL.ar(magic, 0.1, 0.03, 1.5); // short decay, boingy
+        spring = AllpassL.ar(spring, 0.1, [0.022, 0.027], 1.5);
+        magic = magic + spring * 0.4; // mix in some splash
+
+        #left, right = magic;
+        magic = [
+            DelayC.ar(left, 1, LFNoise2.ar(12).range(0, sep)),
+            DelayC.ar(right, 1, LFNoise2.ar(12).range(sep, 0))
+        ];
+
+    }, length);
+    ReplaceOut.ar(0, output);
+}).store;
+)
+
+(
+~springverb = Synth(\springverb, [
+    \length, TempoClock.default.tempo * (3/8),
+    \fb, 0.1,
+    \sep, 0.0014
+], addAction: \addToTail);
+)
+
+