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http://CODE.RHODECODE.COM/u/O/O/O
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500 lines
16 KiB
Plaintext
500 lines
16 KiB
Plaintext
desc:O_HTNYS_YLOP_ONOM_ELPMIS_O_SIMPLE_MONO_POLY_SYNTH_O
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//tags: generator synthesis
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//author: Tale
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// Copyright (C) 2012-2017 Theo Niessink
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// License: LGPL - http://www.gnu.org/licenses/lgpl.html
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slider1:-9.5424250943932487459005580651023061840025772838139172965973128061<-120.0,24.0,.0000001>Volume (dB)
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slider2:0<-1200.0,1200.0,1.0>Tuning (cent)
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slider3:0<0,1>-Unused
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slider4:115.78329573381897224814693702618792906596623994250878031835253772<0,5000,1>Attack (ms)
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slider5:84406.25<1,15000,1>Decay (ms)
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slider6:0.0<-120.0,24.0,1.0>Sustain (dB)
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slider7:115.78329573381897224814693702618792906596623994250878031835253772<0,5000,1>Release (ms)
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slider8:0<0,1>-Unused
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slider9:0<0,15,1{Sine,HW Rect Sine,FW Rect Sine,Triangle,Trapezoid,Square,Pulse PW,Saw,Mod Triangle PW,Tri Pulse,Hammond,Staircase,Mod Square PW,Trapezoid PW,Tri Pulse PW,O_ALOBARAP_O_PARABOLA_O}>Wave
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slider10:0.5<0.0,1.0,0.01>Pulse Width
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slider11:0<0,1>-Unused
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slider12:200.0<0.0,1200.0,1.0>Pitch Wheel (cent)
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slider13:0<0,1>-Unused
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slider14:-36.0<-36.0,0.0,1.0>White Noise (dB)
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slider15:0<0,1>-Unused
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slider16:1.0<0.0,1.0,0.01>Low-Pass Filter
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slider17:0<0,15000,1>Filter Decay (ms)
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slider18:1.0<0.01,4.0,0.01>Filter Q
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slider19:0<0,1>-Unused
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slider20:0<-100,100,1>Pan (%)
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slider21:0<0,1>-Unused
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slider22:0<0,16,1{Any,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}>MIDI Ch
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slider23:1<0,2,1{Legacy,Poly,Mono}>Mode
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slider24:100<0,100,1>Velocity (%)
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slider25:0<0,1>-Unused
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slider26:0.0118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118474639022584228063680118
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<0.01,12.0,0.001>LFO Rate (Hz)
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slider27:0<0,100,1>LFO Depth (%)
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out_pin:Left
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out_pin:Right
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import midi_queue.jsfx-inc
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import adsr.jsfx-inc
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import rc_filter.jsfx-inc
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import zdf_filter.jsfx-inc
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import sine.jsfx-inc
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import poly_blep.jsfx-inc
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import noise.jsfx-inc
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import Tale/fft_synth.jsfx-inc
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import Tale/fourier_series.jsfx-inc
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import Tale/wavetable.jsfx-inc
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@init
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osc_buf = 0; max_poly = 16; osc_size = 13;
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note_buf = osc_buf + max_poly * osc_size;
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hold_buf = note_buf + 128;
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midiq.midiq_init(hold_buf + 128);
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pitch = 1;
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noise_gain = sqrt(srate / 48000);
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lpf.m = 50;
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lpf.ln = log(lpf.m);
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function int(x) ( x|0 );
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function gain(db, inf) ( db <= inf ? 0 : 10^(0.05 * db) );
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function mix(a, b, mix) ( (1.0 - mix) * a + mix * b );
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function cache(x) ( x != this ? ( this = x; 1; ); );
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smooth.rc_set(0.0033);
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function smooth() ( smooth.lp = this.smooth; this.smooth = smooth.rc_lp(this); );
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min_inf = -384.0;
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gain0.smooth = gain1.smooth = gain(slider1, min_inf);
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function set_tg(note)
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// global(tg*)
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(
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tg.poly_setf(440 * 2^((note - 69) / 12));
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);
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function tg_wave(wave)
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// global(tg*)
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(
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wave == 7 ? tg.poly_saw() :
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wave == 6 ? tg.poly_rect() :
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wave == 5 ? tg.poly_sqr() :
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wave == 4 ||
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wave == 13 ? tg.poly_trap2() :
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wave == 3 ? tg.poly_tri() :
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wave == 2 ? tg.poly_full() :
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wave == 1 ? tg.poly_half() :
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wave == 0 ? tg.poly_sin() :
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wave == 8 ? tg.poly_tri2() :
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wave == 9 ||
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wave == 14 ? tg.poly_trip() :
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wave == 10 ? tg.poly_ham() :
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wave == 11 ? tg.poly_stairs() :
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wave == 12 ? tg.poly_sqr2() :
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wave == 15 ? tg.poly_para()
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);
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function adsr_sets(g)
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instance(state)
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(
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state == 4 ? state = 2;
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this.adsr_sets(g);
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);
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function load_adsr(p)
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// global(adsr*)
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(
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adsr.state = p[3];
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adsr.env = p[4];
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adsr.scale = p[5];
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adsr.s = p[6];
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);
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function store_adsr(p)
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// global(adsr*)
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(
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p[3] = adsr.state;
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p[4] = adsr.env;
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p[5] = adsr.scale;
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p[6] = adsr.s;
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);
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function load_lpf(p)
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// global(lpf*)
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(
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lpf.env.lp = p[7];
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lpf.freq.smooth = p[8];
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lpf.zdf.g = p[9];
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lpf.zdf.h = p[10];
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lpf.zdf.s1 = p[11];
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lpf.zdf.s2 = p[12];
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);
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function store_lpf(p)
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// global(lpf*)
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(
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p[7] = lpf.env.lp;
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p[8] = lpf.freq.smooth;
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p[9] = lpf.zdf.g;
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p[10] = lpf.zdf.h;
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p[11] = lpf.zdf.s1;
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p[12] = lpf.zdf.s2;
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);
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function lpf_freq(dt)
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// global(lpf*, srate)
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(
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(lpf.env.a < 1 ? lpf.env.rc_lp(lpf.n) : lpf.n) * dt * srate;
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);
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function reset_lpf(dt)
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// global(lpf*)
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(
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lpf.env.lp = 0;
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lpf.zdf.zdf_reset();
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lpf.freq.smooth = lpf_freq(dt);
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lpf.zdf.zdf_lp(lpf.freq.smooth, lpf.q);
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);
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function set_buf(buf, num, size)
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// global(p, end)
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(
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p = buf;
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end = p + num * size;
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);
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function remove_buf(size)
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// global(p, end)
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(
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end -= size;
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p < end ? memcpy(p, p + size, end - p);
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);
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function find_note(note, buf, num, size)
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// global(p, end)
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(
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set_buf(buf, num, size);
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while(p < end && p[] != note ? p += size);
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);
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function note_on(note, vel)
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// global(p, end, note_buf, num_notes, hold_buf, num_hold, osc_buf, num_osc, osc_size, num_poly, tuning, tg*, adsr*, lpf*)
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(
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find_note(note, note_buf, num_notes, 1);
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p >= end ? (
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p[] = note;
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num_notes += 1;
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);
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find_note(note, hold_buf, num_hold, 1);
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p < end ? (
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remove_buf(1);
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num_hold -= 1;
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);
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find_note(note, osc_buf, num_osc, osc_size);
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p >= end ? (
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set_tg(note);
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num_osc >= num_poly ? (
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p = osc_buf;
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num_poly > 1 ? (
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// Set oscillator/ADSR state to first played note (to mimic old
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// mono_synth global state behavior).
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tg.t = p[1];
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load_adsr(p);
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load_lpf(p);
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);
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remove_buf(osc_size);
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p = end;
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num_osc -= 1;
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) : (
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// Don't reset oscillator on first note (old mono_synth behavior).
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num_osc > 0 ? tg.t = 0;
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adsr.adsr_reset();
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reset_lpf(tuning * tg.dt);
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);
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num_osc += 1;
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p[0] = note;
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p[1] = tg.t;
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p[2] = tg.dt;
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) : num_poly > 1 ? (
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load_adsr(p);
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load_lpf(p);
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);
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adsr.adsr_a(vel);
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lpf.env.lp = lpf.m;
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store_adsr(p);
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store_lpf(p);
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);
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function note_off(note)
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// global(p, end, note_buf, num_notes, osc_buf, num_osc, osc_size, num_poly, note_prio, tg*, adsr*)
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(
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find_note(note, note_buf, num_notes, 1);
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p < end ? (
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remove_buf(1);
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num_notes -= 1;
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);
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find_note(note, osc_buf, num_osc, osc_size);
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p < end ? (
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// Mono, last-note priority
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num_poly == 1 && num_notes > 0 && note_prio ? (
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note = note_buf[num_notes - 1];
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set_tg(note);
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p[0] = note;
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p[1] = tg.t;
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p[2] = tg.dt;
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) : (
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// Release
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num_poly > 1 ? load_adsr(p);
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adsr.adsr_r();
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store_adsr(p);
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);
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);
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);
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function hold_note(note)
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// global(p, end, hold_buf, num_hold)
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(
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find_note(note, hold_buf, num_hold, 1);
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p >= end ? (
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p[] = note;
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num_hold += 1;
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);
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);
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function release_notes()
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// global(hold_buf, num_hold)
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local(p)
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(
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p = hold_buf;
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loop(num_hold,
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note_off(p[]);
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p += 1;
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);
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num_hold = 0;
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);
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function all_notes_off()
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// global(num_notes, num_hold, num_osc)
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(
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num_notes = num_hold = num_osc = 0;
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);
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function pitch_bend(pitch_wheel)
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// global(pitch, pitch_range)
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(
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pitch = pitch_range < 0.00001 ? 1 : 2^(pitch_wheel * pitch_range);
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);
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@slider
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function adr(ms, lo, hi) ( max(lo, min(hi, ms)) * 0.001 );
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function pan(gain, pos)
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// global(gain0, gain1)
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(
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// REAPER default 0 dB pan law (thanks Justin!)
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// http://www.askjf.com/index.php?q=2342s
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pos *= 0.25*$pi;
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gain *= sqrt(2) * (1 - sqrt(0.5) * (1 / cos(pos) - 1));
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pos += 0.25*$pi;
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gain0 = cos(pos) * gain;
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gain1 = sin(pos) * gain;
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);
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pan(gain(slider1, min_inf), max(-100, min(100, slider20)) * 0.01);
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adsr.adsr_seta(adr(slider4, 0, 5000));
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adsr.adsr_setd(adr(slider5, 1, 15000));
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adsr.adsr_sets(gain(slider6, min_inf));
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adsr.adsr_setr(adr(slider7, 0, 5000));
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tuning = 2^(slider2 / 1200);
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wave = int(slider9);
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// Limit pulse width for pulse, triangular pulse, modified square.
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min_pw = wave == 6 || wave == 14 ? 0.10 : wave == 8 ? 0.01 : wave == 12 ? 0.20 : 0.0;
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max_pw = wave == 6 ? 0.90 : wave == 8 ? 0.99 : 1.0;
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pw = wave == 4 || wave == 9 ? 0.5 : max(min_pw, min(max_pw, slider10));
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noise_mix = gain(slider14, -36.0);
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lpf.n = slider16 >= 1.0 ? lpf.m : exp(max(0.0, slider16) * lpf.ln);
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slider17 < 1 ? lpf.env.a = 1 : lpf.env.rc_sett(0.001 * min(15000, slider17));
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lpf.q = max(0.01, min(4.0, slider18));
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pitch_range = max(0.0, slider12) / 1200;
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midi_ch.cache(max(0, min(16, int(slider22))) - 1) ? all_notes_off();
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num_poly.cache(slider23 < 0.5 || slider23 >= 1.5 ? 1 : max_poly) ? all_notes_off();
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note_prio.cache(slider23 >= 0.5) ? all_notes_off();
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vel_range = max(0, min(100, slider24)) * 0.01;
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lfo_range = max(0, min(100, slider27)) * 0.01;
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lfo_range <= 0 ? (
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lfo_mod = 0;
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) : wave == 6 || wave == 8 || wave >= 12 ? (
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lfo_mod = 1;
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lfo_range *= 0.5 * (max_pw - min_pw);
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pw = max(min_pw + lfo_range, min(max_pw - lfo_range, pw));
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) : (
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lfo_mod = 2;
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lfo_range *= 0.5/12;
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);
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lfo_mod != 1 ? tg.poly_setpw(pw);
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lfo_mod ? lfo.sin_setf(max(0.01, slider26));
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@block
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midiq.midiq_collect(midi_ch, 3|8|64);
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|
|
@sample
|
|
|
|
while(midiq.midiq_remove() ? (
|
|
midiq.msg1 &= 0xF0;
|
|
|
|
// Note On
|
|
midiq.msg1 == 0x90 && midiq.msg3 ? (
|
|
note_on(midiq.msg2, (1.0 - vel_range) + vel_range * midiq.msg3 / 127);
|
|
) :
|
|
|
|
// Note Off
|
|
midiq.msg1 == 0x80 || midiq.msg1 == 0x90 ? (
|
|
hold_pedal ? hold_note(midiq.msg2) : note_off(midiq.msg2);
|
|
) :
|
|
|
|
// Pitch Wheel
|
|
midiq.msg1 == 0xE0 ? (
|
|
pitch_bend(((midiq.msg3 << 7 | midiq.msg2) - 8192) / (midiq.msg3 < 64 ? 8192 : 8191));
|
|
) :
|
|
|
|
// Control Change
|
|
midiq.msg1 == 0xB0 ? (
|
|
|
|
// Damper Pedal (Sustain)
|
|
midiq.msg2 == 64 ? (
|
|
hold_pedal = midiq.msg3 >= 64;
|
|
!hold_pedal ? release_notes();
|
|
) :
|
|
|
|
// All Notes Off
|
|
midiq.msg2 == 123 ? (
|
|
all_notes_off();
|
|
);
|
|
);
|
|
|
|
1; // while midiq.midiq_remove()
|
|
));
|
|
|
|
function sample_tg(t, dt)
|
|
// global(adsr*, freq_mod, tg*, wave, white_noise, noise_mix)
|
|
local(ph, out)
|
|
(
|
|
adsr.state ? (
|
|
noise_mix < 1.0 ? (
|
|
// Correct full-wave rectified sine/triangular pulse phase.
|
|
ph = wave == 2 ? 0.25 : wave == 14 ? 0.75 + 0.5 * tg.pw;
|
|
ph > 0 ? tg.poly_sync(t - ph) : tg.t = t;
|
|
|
|
tg.poly_setdt(freq_mod * dt);
|
|
tg.poly_resetf();
|
|
out = adsr.env * mix(tg_wave(wave), white_noise, noise_mix);
|
|
|
|
ph > 0 ? tg.poly_sync(tg.t + ph);
|
|
out;
|
|
) : (
|
|
adsr.env * white_noise;
|
|
);
|
|
);
|
|
// 0.0 otherwise
|
|
);
|
|
|
|
function apply_lpf(in, dt)
|
|
// global(lpf*, tuning)
|
|
local(out)
|
|
(
|
|
lpf.freq = lpf_freq(tuning * dt);
|
|
lpf.freq.smooth();
|
|
|
|
// Recalculate LPF coefficients only every 16 samples.
|
|
lpf.skip <= 0 && lpf.freq.smooth != lpf.zdf.freq ? (
|
|
lpf.zdf.freq = lpf.freq.smooth;
|
|
lpf.zdf.zdf_lp(lpf.zdf.freq, lpf.q);
|
|
);
|
|
|
|
out = lpf.zdf.zdf_svf_lp(in);
|
|
lpf.n < lpf.m ? out : in;
|
|
);
|
|
|
|
function adsr_lpf_off()
|
|
// global(adsr*, lpf.zdf*)
|
|
(
|
|
!adsr.state && lpf.zdf.s1 == 0 && lpf.zdf.s2 == 0;
|
|
);
|
|
|
|
freq_mod = pitch * tuning;
|
|
lfo_mod ? lfo_mod == 1 ? tg.poly_setpw(pw + lfo_range * lfo.sin_sin()) : freq_mod *= 2^(lfo.sin_sin() * lfo_range);
|
|
|
|
white_noise = noise_mix > 0.0 ? noise_gain * noise.lcg_white();
|
|
out = 0.0;
|
|
|
|
// Optimize for mono i.e. don't load/store oscillator/ADSR/filter state.
|
|
num_poly == 1 ? (
|
|
num_osc ? (
|
|
adsr.adsr_process();
|
|
out = apply_lpf(sample_tg(tg.t, osc_buf[2]), osc_buf[2]);
|
|
adsr_lpf_off() ? num_osc = 0;
|
|
);
|
|
) :
|
|
|
|
/* num_poly > 1 ? */ (
|
|
sus = adsr.s;
|
|
|
|
set_buf(osc_buf, num_osc, osc_size);
|
|
while(p < end ? (
|
|
|
|
// Functions indexing memory seems to be slow, so manually inline them.
|
|
/* load_adsr(p); */ adsr.state = p[3]; adsr.env = p[4]; adsr.scale = p[5]; adsr.s = p[6];
|
|
adsr.s != sus ? adsr.adsr_sets(sus);
|
|
adsr.adsr_process();
|
|
/* store_adsr(p); */ p[3] = adsr.state; p[4] = adsr.env; p[5] = adsr.scale; p[6] = adsr.s;
|
|
|
|
s = sample_tg(p[1], p[2]);
|
|
p[1] = tg.t;
|
|
|
|
/* load_lpf(p); */ lpf.env.lp = p[7]; lpf.freq.smooth = p[8]; lpf.zdf.g = p[9]; lpf.zdf.h = p[10]; lpf.zdf.s1 = p[11]; lpf.zdf.s2 = p[12];
|
|
s = apply_lpf(s, p[2]);
|
|
/* store_lpf(p); */ p[7] = lpf.env.lp; p[8] = lpf.freq.smooth; p[9] = lpf.zdf.g; p[10] = lpf.zdf.h; p[11] = lpf.zdf.s1; p[12] = lpf.zdf.s2;
|
|
|
|
out += s;
|
|
|
|
adsr_lpf_off() ? (
|
|
remove_buf(osc_size);
|
|
num_osc -= 1;
|
|
) : (
|
|
p += osc_size;
|
|
);
|
|
));
|
|
);
|
|
|
|
lpf.skip > 0 ? lpf.skip -= 1 : lpf.skip = 16 - 1;
|
|
|
|
spl0 += gain0.smooth() * out;
|
|
spl1 += gain1.smooth() * out;
|