diff --git a/dynamics/aw_pop2.h b/dynamics/aw_pop2.h deleted file mode 100644 index 4694f9d..0000000 --- a/dynamics/aw_pop2.h +++ /dev/null @@ -1,281 +0,0 @@ -#pragma once -#include -#include -#include - -namespace trnr { -// compressor based on pop2 by Chris Johnson -class aw_pop2 { -public: - aw_pop2() - { - samplerate = 44100; - - A = 0.5; - B = 0.5; - C = 0.5; - D = 0.5; - E = 1.0; - fpdL = 1.0; - while (fpdL < 16386) fpdL = rand() * UINT32_MAX; - fpdR = 1.0; - while (fpdR < 16386) fpdR = rand() * UINT32_MAX; - - lastSampleL = 0.0; - wasPosClipL = false; - wasNegClipL = false; - lastSampleR = 0.0; - wasPosClipR = false; - wasNegClipR = false; - for (int x = 0; x < 16; x++) { - intermediateL[x] = 0.0; - intermediateR[x] = 0.0; - } - - muVaryL = 0.0; - muAttackL = 0.0; - muNewSpeedL = 1000.0; - muSpeedAL = 1000.0; - muSpeedBL = 1000.0; - muCoefficientAL = 1.0; - muCoefficientBL = 1.0; - - muVaryR = 0.0; - muAttackR = 0.0; - muNewSpeedR = 1000.0; - muSpeedAR = 1000.0; - muSpeedBR = 1000.0; - muCoefficientAR = 1.0; - muCoefficientBR = 1.0; - - flip = false; - // this is reset: values being initialized only once. Startup values, whatever they are. - } - - void set_compression(double value) { A = clamp(value); } - - void set_attack(double value) { B = clamp(value); } - - void set_release(double value) { C = clamp(value); } - - void set_drive(double value) { D = clamp(value); } - - void set_drywet(double value) { E = clamp(value); } - - void set_samplerate(double _samplerate) { samplerate = _samplerate; } - - template - void process_block(t_sample** inputs, t_sample** outputs, long sampleframes) - { - t_sample* in1 = inputs[0]; - t_sample* in2 = inputs[1]; - t_sample* out1 = outputs[0]; - t_sample* out2 = outputs[1]; - - double overallscale = 1.0; - overallscale /= 44100.0; - overallscale *= samplerate; - - int spacing = floor(overallscale); // should give us working basic scaling, usually 2 or 4 - if (spacing < 1) spacing = 1; - if (spacing > 16) spacing = 16; - - double threshold = 1.0 - ((1.0 - pow(1.0 - A, 2)) * 0.9); - double attack = ((pow(B, 4) * 100000.0) + 10.0) * overallscale; - double release = ((pow(C, 5) * 2000000.0) + 20.0) * overallscale; - double maxRelease = release * 4.0; - double muPreGain = 1.0 / threshold; - double muMakeupGain = sqrt(1.0 / threshold) * D; - double wet = E; - // compressor section - - while (--sampleframes >= 0) { - double inputSampleL = *in1; - double inputSampleR = *in2; - if (fabs(inputSampleL) < 1.18e-23) inputSampleL = fpdL * 1.18e-17; - if (fabs(inputSampleR) < 1.18e-23) inputSampleR = fpdR * 1.18e-17; - double drySampleL = inputSampleL; - double drySampleR = inputSampleR; - - // begin compressor section - inputSampleL *= muPreGain; - inputSampleR *= muPreGain; - // adjust coefficients for L - if (flip) { - if (fabs(inputSampleL) > threshold) { - muVaryL = threshold / fabs(inputSampleL); - muAttackL = sqrt(fabs(muSpeedAL)); - muCoefficientAL = muCoefficientAL * (muAttackL - 1.0); - if (muVaryL < threshold) muCoefficientAL = muCoefficientAL + threshold; - else muCoefficientAL = muCoefficientAL + muVaryL; - muCoefficientAL = muCoefficientAL / muAttackL; - muNewSpeedL = muSpeedAL * (muSpeedAL - 1.0); - muNewSpeedL = muNewSpeedL + release; - muSpeedAL = muNewSpeedL / muSpeedAL; - if (muSpeedAL > maxRelease) muSpeedAL = maxRelease; - } else { - muCoefficientAL = muCoefficientAL * ((muSpeedAL * muSpeedAL) - 1.0); - muCoefficientAL = muCoefficientAL + 1.0; - muCoefficientAL = muCoefficientAL / (muSpeedAL * muSpeedAL); - muNewSpeedL = muSpeedAL * (muSpeedAL - 1.0); - muNewSpeedL = muNewSpeedL + attack; - muSpeedAL = muNewSpeedL / muSpeedAL; - } - } else { - if (fabs(inputSampleL) > threshold) { - muVaryL = threshold / fabs(inputSampleL); - muAttackL = sqrt(fabs(muSpeedBL)); - muCoefficientBL = muCoefficientBL * (muAttackL - 1); - if (muVaryL < threshold) muCoefficientBL = muCoefficientBL + threshold; - else muCoefficientBL = muCoefficientBL + muVaryL; - muCoefficientBL = muCoefficientBL / muAttackL; - muNewSpeedL = muSpeedBL * (muSpeedBL - 1.0); - muNewSpeedL = muNewSpeedL + release; - muSpeedBL = muNewSpeedL / muSpeedBL; - if (muSpeedBL > maxRelease) muSpeedBL = maxRelease; - } else { - muCoefficientBL = muCoefficientBL * ((muSpeedBL * muSpeedBL) - 1.0); - muCoefficientBL = muCoefficientBL + 1.0; - muCoefficientBL = muCoefficientBL / (muSpeedBL * muSpeedBL); - muNewSpeedL = muSpeedBL * (muSpeedBL - 1.0); - muNewSpeedL = muNewSpeedL + attack; - muSpeedBL = muNewSpeedL / muSpeedBL; - } - } - // got coefficients, adjusted speeds for L - - // adjust coefficients for R - if (flip) { - if (fabs(inputSampleR) > threshold) { - muVaryR = threshold / fabs(inputSampleR); - muAttackR = sqrt(fabs(muSpeedAR)); - muCoefficientAR = muCoefficientAR * (muAttackR - 1.0); - if (muVaryR < threshold) muCoefficientAR = muCoefficientAR + threshold; - else muCoefficientAR = muCoefficientAR + muVaryR; - muCoefficientAR = muCoefficientAR / muAttackR; - muNewSpeedR = muSpeedAR * (muSpeedAR - 1.0); - muNewSpeedR = muNewSpeedR + release; - muSpeedAR = muNewSpeedR / muSpeedAR; - if (muSpeedAR > maxRelease) muSpeedAR = maxRelease; - } else { - muCoefficientAR = muCoefficientAR * ((muSpeedAR * muSpeedAR) - 1.0); - muCoefficientAR = muCoefficientAR + 1.0; - muCoefficientAR = muCoefficientAR / (muSpeedAR * muSpeedAR); - muNewSpeedR = muSpeedAR * (muSpeedAR - 1.0); - muNewSpeedR = muNewSpeedR + attack; - muSpeedAR = muNewSpeedR / muSpeedAR; - } - } else { - if (fabs(inputSampleR) > threshold) { - muVaryR = threshold / fabs(inputSampleR); - muAttackR = sqrt(fabs(muSpeedBR)); - muCoefficientBR = muCoefficientBR * (muAttackR - 1); - if (muVaryR < threshold) muCoefficientBR = muCoefficientBR + threshold; - else muCoefficientBR = muCoefficientBR + muVaryR; - muCoefficientBR = muCoefficientBR / muAttackR; - muNewSpeedR = muSpeedBR * (muSpeedBR - 1.0); - muNewSpeedR = muNewSpeedR + release; - muSpeedBR = muNewSpeedR / muSpeedBR; - if (muSpeedBR > maxRelease) muSpeedBR = maxRelease; - } else { - muCoefficientBR = muCoefficientBR * ((muSpeedBR * muSpeedBR) - 1.0); - muCoefficientBR = muCoefficientBR + 1.0; - muCoefficientBR = muCoefficientBR / (muSpeedBR * muSpeedBR); - muNewSpeedR = muSpeedBR * (muSpeedBR - 1.0); - muNewSpeedR = muNewSpeedR + attack; - muSpeedBR = muNewSpeedR / muSpeedBR; - } - } - // got coefficients, adjusted speeds for R - - if (flip) { - inputSampleL *= pow(muCoefficientAL, 2); - inputSampleR *= pow(muCoefficientAR, 2); - } else { - inputSampleL *= pow(muCoefficientBL, 2); - inputSampleR *= pow(muCoefficientBR, 2); - } - inputSampleL *= muMakeupGain; - inputSampleR *= muMakeupGain; - flip = !flip; - // end compressor section - - if (wet < 1.0) { - inputSampleL = (drySampleL * (1.0 - wet)) + (inputSampleL * wet); - inputSampleR = (drySampleR * (1.0 - wet)) + (inputSampleR * wet); - } - - // begin 64 bit stereo floating point dither - // int expon; frexp((double)inputSampleL, &expon); - fpdL ^= fpdL << 13; - fpdL ^= fpdL >> 17; - fpdL ^= fpdL << 5; - // inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); - // frexp((double)inputSampleR, &expon); - fpdR ^= fpdR << 13; - fpdR ^= fpdR >> 17; - fpdR ^= fpdR << 5; - // inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); - // end 64 bit stereo floating point dither - - *out1 = inputSampleL; - *out2 = inputSampleR; - - in1++; - in2++; - out1++; - out2++; - } - } - -private: - double samplerate; - - uint32_t fpdL; - uint32_t fpdR; - // default stuff - - double muVaryL; - double muAttackL; - double muNewSpeedL; - double muSpeedAL; - double muSpeedBL; - double muCoefficientAL; - double muCoefficientBL; - - double muVaryR; - double muAttackR; - double muNewSpeedR; - double muSpeedAR; - double muSpeedBR; - double muCoefficientAR; - double muCoefficientBR; - - bool flip; - - double lastSampleL; - double intermediateL[16]; - bool wasPosClipL; - bool wasNegClipL; - double lastSampleR; - double intermediateR[16]; - bool wasPosClipR; - bool wasNegClipR; // Stereo ClipOnly2 - - float A; - float B; - float C; - float D; - float E; // parameters. Always 0-1, and we scale/alter them elsewhere. - - double clamp(double& value) - { - if (value > 1) { - value = 1; - } else if (value < 0) { - value = 0; - } - return value; - } -}; -} // namespace trnr \ No newline at end of file