X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/c7f552fd8888da2f0d8cfb228fe0f28d3df3a12c..b4b6f2ea75b9f0f3ca918f5b84016610bf7a4d4f:/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/synth/expander.dsp

diff --git a/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/synth/expander.dsp b/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/synth/expander.dsp
deleted file mode 100644
index 5966884..0000000
--- a/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/synth/expander.dsp
+++ /dev/null
@@ -1,51 +0,0 @@
-
-/* Expander unit. */
-
-/* This is pretty much the same as compressor.dsp, but here the given ratio is
-   applied to *attenuate* levels *below* the threshold. */
-
-declare name "expander -- expander/noise gate unit";
-declare author "Albert Graef";
-declare version "1.0";
-
-import("music.lib");
-
-/* Controls. */
-
-exp_group(x)	= hgroup("1-expander", x);
-env_group(x)	= vgroup("2-envelop", x);
-gain_group(x)	= vgroup("3-gain", x);
-
-ratio		= exp_group(nentry("ratio", 2, 1, 20, 0.1));
-threshold	= exp_group(nentry("threshold", -40, -96, 10, 0.1));
-knee		= exp_group(nentry("knee", 3, 0, 20, 0.1));
-
-attack		= env_group(hslider("attack", 0.001, 0, 1, 0.001)) : max(1/SR);
-release		= env_group(hslider("release", 0.1, 0, 10, 0.01)) : max(1/SR);
-
-gain(x)		= attach(x, x : gain_group(hbargraph("gain", -96, 0)));
-
-t		= 0.1;
-g		= exp(-1/(SR*t));
-env		= abs : *(1-g) : + ~ *(g);
-rms		= sqr : *(1-g) : + ~ *(g) : sqrt;
-sqr(x)		= x*x;
-
-env2(x,y)	= max(env(x),env(y));
-
-expand(env)	= level*(1-r)
-with {
-	level	= env : h ~ _ : linear2db : (threshold+knee-_) : max(0)
-	with {
-		h(x,y)	= f*x+(1-f)*y with { f = (x<y)*ga+(x>=y)*gr; };
-		ga	= exp(-1/(SR*attack));
-		gr	= exp(-1/(SR*release));
-	};
-	p	= level/(knee+eps) : max(0) : min(1) with { eps = 0.001; };
-	r	= 1-p+p*ratio;
-};
-
-process(x,y)	= (g*x,g*y)
-with {
-	g	= env2(x,y) : expand : gain : db2linear;
-};