X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/c7f552fd8888da2f0d8cfb228fe0f28d3df3a12c..b4b6f2ea75b9f0f3ca918f5b84016610bf7a4d4f:/interpretor/faust-0.9.47mr3/examples/faust-stk/bowed.dsp diff --git a/interpretor/faust-0.9.47mr3/examples/faust-stk/bowed.dsp b/interpretor/faust-0.9.47mr3/examples/faust-stk/bowed.dsp deleted file mode 100644 index 5be6e1f..0000000 --- a/interpretor/faust-0.9.47mr3/examples/faust-stk/bowed.dsp +++ /dev/null @@ -1,114 +0,0 @@ -declare name "Bowed"; -declare description "Nonlinear WaveGuide Bowed Instrument"; -declare author "Romain Michon"; -declare copyright "Romain Michon (rmichon@ccrma.stanford.edu)"; -declare version "1.0"; -declare licence "STK-4.3"; // Synthesis Tool Kit 4.3 (MIT style license); -declare description "A bowed string model, a la Smith (1986), after McIntyre, Schumacher, Woodhouse (1983)."; -declare reference "https://ccrma.stanford.edu/~jos/pasp/Bowed_Strings.html"; - -import("music.lib"); -import("instrument.lib"); - -//==================== GUI SPECIFICATION ================ - -freq = nentry("h:Basic_Parameters/freq [1][unit:Hz] [tooltip:Tone frequency]",440,20,20000,1); -gain = nentry("h:Basic_Parameters/gain [1][tooltip:Gain (value between 0 and 1)]",1,0,1,0.01); -gate = button("h:Basic_Parameters/gate [1][tooltip:noteOn = 1, noteOff = 0]"); - -bowPosition = hslider("h:Physical_and_Nonlinearity/v:Physical_Parameters/Bow_Position -[2][tooltip:Bow position along the string (value between 0 and 1)]",0.7,0.01,1,0.01); -bowPressure = hslider("h:Physical_and_Nonlinearity/v:Physical_Parameters/Bow_Pressure -[2][tooltip:Bow pressure on the string (value between 0 and 1)]",0.75,0,1,0.01); - -typeModulation = nentry("h:Physical_and_Nonlinearity/v:Nonlinear_Filter_Parameters/Modulation_Type -[3][tooltip: 0=theta is modulated by the incoming signal; 1=theta is modulated by the averaged incoming signal; -2=theta is modulated by the squared incoming signal; 3=theta is modulated by a sine wave of frequency freqMod; -4=theta is modulated by a sine wave of frequency freq;]",0,0,4,1); -nonLinearity = hslider("h:Physical_and_Nonlinearity/v:Nonlinear_Filter_Parameters/Nonlinearity -[3][tooltip:Nonlinearity factor (value between 0 and 1)]",0,0,1,0.01); -frequencyMod = hslider("h:Physical_and_Nonlinearity/v:Nonlinear_Filter_Parameters/Modulation_Frequency -[3][unit:Hz][tooltip:Frequency of the sine wave for the modulation of theta (works if Modulation Type=3)]",220,20,1000,0.1); -nonLinAttack = hslider("h:Physical_and_Nonlinearity/v:Nonlinear_Filter_Parameters/Nonlinearity_Attack -[3][unit:s][Attack duration of the nonlinearity]",0.1,0,2,0.01); - -vibratoFreq = hslider("h:Envelopes_and_Vibrato/v:Vibrato_Parameters/Vibrato_Freq -[4][unit:Hz]",6,1,15,0.1); -vibratoGain = hslider("h:Envelopes_and_Vibrato/v:Vibrato_Parameters/Vibrato_Gain -[4][tooltip:A value between 0 and 1]",0.01,0,1,0.01); -vibratoBegin = hslider("h:Envelopes_and_Vibrato/v:Vibrato_Parameters/Vibrato_Begin -[4][unit:s][tooltip:Vibrato silence duration before attack]",0.05,0,2,0.01); -vibratoAttack = hslider("h:Envelopes_and_Vibrato/v:Vibrato_Parameters/Vibrato_Attack -[4][unit:s][tooltip:Vibrato attack duration]",0.5,0,2,0.01); -vibratoRelease = hslider("h:Envelopes_and_Vibrato/v:Vibrato_Parameters/Vibrato_Release -[4][unit:s][tooltip:Vibrato release duration]",0.01,0,2,0.01); - -envelopeAttack = hslider("h:Envelopes_and_Vibrato/v:Envelope_Parameters/Envelope_Attack -[5][unit:s][tooltip:Envelope attack duration]",0.01,0,2,0.01); -envelopeDecay = hslider("h:Envelopes_and_Vibrato/v:Envelope_Parameters/Envelope_Decay -[5][unit:s][tooltip:Envelope decay duration]",0.05,0,2,0.01); -envelopeRelease = hslider("h:Envelopes_and_Vibrato/v:Envelope_Parameters/Envelope_Release -[5][unit:s][tooltip:Envelope release duration]",0.1,0,2,0.01); - -//==================== SIGNAL PROCESSING ================ - -//----------------------- Nonlinear filter ---------------------------- -//nonlinearities are created by the nonlinear passive allpass ladder filter declared in filter.lib - -//nonlinear filter order -nlfOrder = 6; - -//attack - sustain - release envelope for nonlinearity (declared in instrument.lib) -envelopeMod = asr(nonLinAttack,100,envelopeRelease,gate); - -//nonLinearModultor is declared in instrument.lib, it adapts allpassnn from filter.lib -//for using it with waveguide instruments -NLFM = nonLinearModulator((nonLinearity : smooth(0.999)),envelopeMod,freq, - typeModulation,(frequencyMod : smooth(0.999)),nlfOrder); - -//----------------------- Synthesis parameters computing and functions declaration ---------------------------- - -//Parameters for the bow table -tableOffset = 0; -tableSlope = 5 - (4*bowPressure); - -//the bow table is declared in instrument.lib -bowTable = bow(tableOffset,tableSlope); - -//a attack - decay - sustain - release envelope is used -envelope = adsr(gain*envelopeAttack,envelopeDecay,90, (1-gain)*envelopeRelease,gate); -maxVelocity = 0.03 + (0.2 * gain); - -//Delay lines declaration and vibrato, the length of the two delay lines are evolving propotionally -betaRatio = 0.027236 + (0.2*bowPosition); -fdelneck = (SR/freq-4)*(1 - betaRatio); -vibratoEnvelope = envVibrato(vibratoBegin,vibratoAttack,100,vibratoRelease,gate); -vibrato = fdelneck + ((SR/freq - 4)*vibratoGain*vibratoEnvelope*osc(vibratoFreq)); -neckDelay = fdelay(4096,vibrato); -fdelbridge = (SR/freq - 4)*betaRatio; -bridgeDelay = delay(4096,fdelbridge); - -//Body Filter: a biquad filter with a normalized pick gain (declared in instrument.lib) -bodyFilter = bandPass(500,0.85); - -//String Filter: a lowpass filter (declared in instrument.lib) -stringFilter = *(0.95) : -onePole(b0,a1) - with{ - pole = 0.6 - (0.1*22050/SR); - gain = 0.95; - b0 = 1-pole; - a1 = -pole; - }; - -//stereoizer is declared in instrument.lib and implement a stereo spacialisation in function of -//the frequency period in number of samples -stereo = stereoizer(SR/freq); - -//----------------------- Algorithm implementation ---------------------------- - -bowVelocity = envelope*maxVelocity; -instrumentBody(feedBckBridge) = (*(-1) <: +(feedBckBridge),_ : (bowVelocity-_ <: *(bowTable) <: _,_),_ : - _, + : +(feedBckBridge),_) ~ (neckDelay) : !,_; - -process = (stringFilter : instrumentBody) ~ (bridgeDelay : NLFM) : bodyFilter(*(0.2)) : - _*gain*8 : stereo : instrReverb;