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

diff --git a/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/seqdemo/subtractive.dsp b/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/seqdemo/subtractive.dsp
deleted file mode 100644
index e185609..0000000
--- a/interpretor/faust-0.9.47mr3/tools/faust2pd/examples/seqdemo/subtractive.dsp
+++ /dev/null
@@ -1,85 +0,0 @@
-
-declare name "subtractive -- saw wave filtered with resonant lowpass";
-declare author "Albert Graef";
-declare version "1.0";
-
-import("music.lib");
-
-// control variables
-
-// master volume and pan
-vol	= hslider("vol", 0.3, 0, 10, 0.01);	// %
-pan	= hslider("pan", 0.5, 0, 1, 0.01);	// %
-
-// ADSR envelop
-attack	= hslider("attack", 0.01, 0, 1, 0.001);	// sec
-decay	= hslider("decay", 0.3, 0, 1, 0.001);	// sec
-sustain = hslider("sustain", 0.5, 0, 1, 0.01);	// %
-release = hslider("release", 0.2, 0, 1, 0.001);	// sec
-
-// filter parameters
-res	= hslider("resonance (dB)", 3, 0, 20, 0.1);
-cutoff	= hslider("cutoff (harmonic)", 6, 1, 20, 0.1);
-
-// voice parameters
-freq	= nentry("freq", 440, 20, 20000, 1);	// Hz
-gain	= nentry("gain", 1, 0, 10, 0.01);	// %
-gate	= button("gate");			// 0/1
-
-// generic table-driven oscillator with phase modulation
-
-// n	= the size of the table, must be a power of 2
-// f	= the wave function, must be defined on the range [0,2*PI]
-// freq	= the desired frequency in Hz
-// mod	= the phase modulation signal, in radians
-
-tblosc(n,f,freq,mod)	= (1-d)*rdtable(n,waveform,i&(n-1)) +
-			  d*rdtable(n,waveform,(i+1)&(n-1))
-with {
-	waveform 	= time*(2.0*PI)/n : f;
-	phase		= freq/SR : (+ : decimal) ~ _;
-	modphase	= decimal(phase+mod/(2*PI))*n;
-	i		= int(floor(modphase));
-	d		= decimal(modphase);
-};
-
-// resonant lowpass
-
-// This is a tweaked Butterworth filter by David Werner and Patrice Tarrabia,
-// see http://www.musicdsp.org and http://www.experimentalscene.com for
-// details.
-
-// res = resonance in dB above DC gain
-// freq = cutoff frequency
-
-lowpass(res,freq)	= f : (+ ~ g) : *(a)
-with {
-	f(x)	= a0*x+a1*x'+a2*x'';
-	g(y)	= 0-b1*y-b2*y';
-	a	= 1/db2linear(0.5*res);
-
-	c	= 1.0/tan(PI*(freq/SR));
-	c2	= c*c;
-	r	= 1/db2linear(2.0*res);
-	q	= sqrt(2.0)*r;
-	a0	= 1.0/(1.0+(q*c)+(c2));
-	a1	= 2.0*a0;
-	a2	= a0;
-	b1	= 2.0*a0*(1.0-c2);
-	b2	= a0*(1.0-q*c+c2);
-};
-
-// subtractive synth (saw wave passed through resonant lowpass)
-
-saw(x)	= x/PI-1;
-
-smooth(c) = *(1-c) : +~*(c);
-
-process	= tblosc(1<<16, saw, freq, 0) : ((env,freq,_) : filter) :
-	  *(env * (gain/*:smooth(0.999)*/))
-        : vgroup("3-master", *(vol) : panner(pan))
-with {
-  env = gate : vgroup("1-adsr", adsr(attack, decay, sustain, release));
-  filter(env,freq)
-      = vgroup("2-filter", lowpass(env*res, fmax(1/cutoff, env)*freq*cutoff));
-};