X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/c7f552fd8888da2f0d8cfb228fe0f28d3df3a12c..b4b6f2ea75b9f0f3ca918f5b84016610bf7a4d4f:/interpretor/faust-0.9.47mr3/examples/lowboost.dsp diff --git a/interpretor/faust-0.9.47mr3/examples/lowboost.dsp b/interpretor/faust-0.9.47mr3/examples/lowboost.dsp deleted file mode 100644 index 982d8f4..0000000 --- a/interpretor/faust-0.9.47mr3/examples/lowboost.dsp +++ /dev/null @@ -1,41 +0,0 @@ -declare name "lowboost"; -declare version "1.0"; -declare author "Grame"; -declare license "BSD"; -declare copyright "(c)GRAME 2006"; - -//------------------------------------------------------------------ -// DAFX, Digital Audio Effects (Wiley ed.) -// chapter 2 : filters -// section 2.3 : Equalizers -// page 53 : second order shelving filter design -//------------------------------------------------------------------ - -import("music.lib"); - - -//------------------- low-frequency shelving boost (table 2.3) -------------------- - -V0(g) = pow(10,g/20.0); -K(fc) = tan(PI*fc/SR); -square(x) = x*x; -denom(fc) = 1 + sqrt(2)*K(fc) + square(K(fc)); - -lfboost(fc, g) = TF2( (1 + sqrt(2*V0(g))*K(fc) + V0(g)*square(K(fc))) / denom(fc), - 2 * (V0(g)*square(K(fc)) - 1) / denom(fc), - (1 - sqrt(2*V0(g))*K(fc) + V0(g)*square(K(fc))) / denom(fc), - 2 * (square(K(fc)) - 1) / denom(fc), - (1 - sqrt(2)*K(fc) + square(K(fc))) / denom(fc) - ); - - -//------------------------------ User Interface ----------------------------------- - -freq = hslider("[1]freq [unit:Hz][style:knob]", 1000, 20, 20000, 0.1); -gain = hslider("[2]gain [unit:dB][style:knob]", 0, -20, 20, 0.1); - - -//----------------------------------- Process ------------------------------------- - -process = vgroup("low-freq shelving boost", lfboost(freq,gain)); -