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ZHighpass2
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airwindows
parent
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77 changed files with 12547 additions and 228 deletions
440
plugins/WinVST/ZHighpass2/ZHighpass2Proc.cpp
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plugins/WinVST/ZHighpass2/ZHighpass2Proc.cpp
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/* ========================================
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* ZHighpass2 - ZHighpass2.h
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* Copyright (c) 2016 airwindows, All rights reserved
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* ======================================== */
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#ifndef __ZHighpass2_H
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#include "ZHighpass2.h"
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#endif
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void ZHighpass2::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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biquadA[biq_freq] = ((pow(B,4)*9500.0)/getSampleRate())+0.00076;
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//double clipFactor = 1.212-((1.0-B)*0.496);
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biquadA[biq_reso] = 1.0;
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biquadA[biq_aA0] = biquadA[biq_aB0];
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biquadA[biq_aA1] = biquadA[biq_aB1];
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biquadA[biq_aA2] = biquadA[biq_aB2];
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biquadA[biq_bA1] = biquadA[biq_bB1];
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biquadA[biq_bA2] = biquadA[biq_bB2];
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//previous run through the buffer is still in the filter, so we move it
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//to the A section and now it's the new starting point.
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double K = tan(M_PI * biquadA[biq_freq]);
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double norm = 1.0 / (1.0 + K / biquadA[biq_reso] + K * K);
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biquadA[biq_aB0] = norm;
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biquadA[biq_aB1] = -2.0 * biquadA[biq_aB0];
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biquadA[biq_aB2] = biquadA[biq_aB0];
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biquadA[biq_bB1] = 2.0 * (K * K - 1.0) * norm;
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biquadA[biq_bB2] = (1.0 - K / biquadA[biq_reso] + K * K) * norm;
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//opamp stuff
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inTrimA = inTrimB;
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inTrimB = A*10.0;
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inTrimB *= inTrimB; inTrimB *= inTrimB;
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outTrimA = outTrimB;
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outTrimB = C*10.0;
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wetA = wetB;
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wetB = pow(D,2);
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double iirAmountA = 0.00069/overallscale;
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fixA[fix_freq] = fixB[fix_freq] = 15500.0 / getSampleRate();
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fixA[fix_reso] = fixB[fix_reso] = 0.935;
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K = tan(M_PI * fixB[fix_freq]); //lowpass
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norm = 1.0 / (1.0 + K / fixB[fix_reso] + K * K);
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fixA[fix_a0] = fixB[fix_a0] = K * K * norm;
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fixA[fix_a1] = fixB[fix_a1] = 2.0 * fixB[fix_a0];
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fixA[fix_a2] = fixB[fix_a2] = fixB[fix_a0];
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fixA[fix_b1] = fixB[fix_b1] = 2.0 * (K * K - 1.0) * norm;
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fixA[fix_b2] = fixB[fix_b2] = (1.0 - K / fixB[fix_reso] + K * K) * norm;
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//end opamp stuff
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double trim = 0.1+(3.712*biquadA[biq_freq]);
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while (--sampleFrames >= 0)
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{
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long double inputSampleL = *in1;
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long double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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long double drySampleL = inputSampleL;
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long double drySampleR = inputSampleR;
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long double overallDrySampleL = inputSampleL;
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long double overallDrySampleR = inputSampleR;
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long double outSample = (long double)sampleFrames/inFramesToProcess;
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biquadA[biq_a0] = (biquadA[biq_aA0]*outSample)+(biquadA[biq_aB0]*(1.0-outSample));
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biquadA[biq_a1] = (biquadA[biq_aA1]*outSample)+(biquadA[biq_aB1]*(1.0-outSample));
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biquadA[biq_a2] = (biquadA[biq_aA2]*outSample)+(biquadA[biq_aB2]*(1.0-outSample));
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biquadA[biq_b1] = (biquadA[biq_bA1]*outSample)+(biquadA[biq_bB1]*(1.0-outSample));
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biquadA[biq_b2] = (biquadA[biq_bA2]*outSample)+(biquadA[biq_bB2]*(1.0-outSample));
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for (int x = 0; x < 7; x++) {biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
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//this is the interpolation code for the biquad
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long double inTrim = (inTrimA*outSample)+(inTrimB*(1.0-outSample));
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long double outTrim = (outTrimA*outSample)+(outTrimB*(1.0-outSample));
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long double wet = (wetA*outSample)+(wetB*(1.0-outSample));
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long double aWet = 1.0;
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long double bWet = 1.0;
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long double cWet = 1.0;
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long double dWet = wet*4.0;
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//four-stage wet/dry control using progressive stages that bypass when not engaged
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if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
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else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
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else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
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else {dWet -= 3.0;}
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//this is one way to make a little set of dry/wet stages that are successively added to the
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//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
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//beyond that point: this is a way to progressively add a 'black box' sound processing
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//which lets you fall through to simpler processing at lower settings.
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if (inTrim != 1.0) {
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inputSampleL *= inTrim;
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inputSampleR *= inTrim;
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}
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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inputSampleL *= trim; inputSampleR *= trim;
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//inputSampleL /= clipFactor; inputSampleR /= clipFactor;
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outSample = (inputSampleL * biquadA[biq_a0]) + biquadA[biq_sL1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadA[biq_sL1] = (inputSampleL * biquadA[biq_a1]) - (outSample * biquadA[biq_b1]) + biquadA[biq_sL2];
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biquadA[biq_sL2] = (inputSampleL * biquadA[biq_a2]) - (outSample * biquadA[biq_b2]);
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drySampleL = inputSampleL = outSample;
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outSample = (inputSampleR * biquadA[biq_a0]) + biquadA[biq_sR1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadA[biq_sR1] = (inputSampleR * biquadA[biq_a1]) - (outSample * biquadA[biq_b1]) + biquadA[biq_sR2];
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biquadA[biq_sR2] = (inputSampleR * biquadA[biq_a2]) - (outSample * biquadA[biq_b2]);
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drySampleR = inputSampleR = outSample;
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if (bWet > 0.0) {
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//inputSampleL /= clipFactor;
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outSample = (inputSampleL * biquadB[biq_a0]) + biquadB[biq_sL1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadB[biq_sL1] = (inputSampleL * biquadB[biq_a1]) - (outSample * biquadB[biq_b1]) + biquadB[biq_sL2];
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biquadB[biq_sL2] = (inputSampleL * biquadB[biq_a2]) - (outSample * biquadB[biq_b2]);
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drySampleL = inputSampleL = (outSample * bWet) + (drySampleL * (1.0-bWet));
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//inputSampleR /= clipFactor;
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outSample = (inputSampleR * biquadB[biq_a0]) + biquadB[biq_sR1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadB[biq_sR1] = (inputSampleR * biquadB[biq_a1]) - (outSample * biquadB[biq_b1]) + biquadB[biq_sR2];
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biquadB[biq_sR2] = (inputSampleR * biquadB[biq_a2]) - (outSample * biquadB[biq_b2]);
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drySampleR = inputSampleR = (outSample * bWet) + (drySampleR * (1.0-bWet));
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}
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if (cWet > 0.0) {
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//inputSampleL /= clipFactor;
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outSample = (inputSampleL * biquadC[biq_a0]) + biquadC[biq_sL1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadC[biq_sL1] = (inputSampleL * biquadC[biq_a1]) - (outSample * biquadC[biq_b1]) + biquadC[biq_sL2];
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biquadC[biq_sL2] = (inputSampleL * biquadC[biq_a2]) - (outSample * biquadC[biq_b2]);
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drySampleL = inputSampleL = (outSample * cWet) + (drySampleL * (1.0-cWet));
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//inputSampleR /= clipFactor;
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outSample = (inputSampleR * biquadC[biq_a0]) + biquadC[biq_sR1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadC[biq_sR1] = (inputSampleR * biquadC[biq_a1]) - (outSample * biquadC[biq_b1]) + biquadC[biq_sR2];
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biquadC[biq_sR2] = (inputSampleR * biquadC[biq_a2]) - (outSample * biquadC[biq_b2]);
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drySampleR = inputSampleR = (outSample * cWet) + (drySampleR * (1.0-cWet));
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}
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if (dWet > 0.0) {
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//inputSampleL /= clipFactor;
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outSample = (inputSampleL * biquadD[biq_a0]) + biquadD[biq_sL1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadD[biq_sL1] = (inputSampleL * biquadD[biq_a1]) - (outSample * biquadD[biq_b1]) + biquadD[biq_sL2];
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biquadD[biq_sL2] = (inputSampleL * biquadD[biq_a2]) - (outSample * biquadD[biq_b2]);
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drySampleL = inputSampleL = (outSample * dWet) + (drySampleL * (1.0-dWet));
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//inputSampleR /= clipFactor;
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outSample = (inputSampleR * biquadD[biq_a0]) + biquadD[biq_sR1];
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if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
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biquadD[biq_sR1] = (inputSampleR * biquadD[biq_a1]) - (outSample * biquadD[biq_b1]) + biquadD[biq_sR2];
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biquadD[biq_sR2] = (inputSampleR * biquadD[biq_a2]) - (outSample * biquadD[biq_b2]);
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drySampleR = inputSampleR = (outSample * dWet) + (drySampleR * (1.0-dWet));
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}
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//inputSampleL /= clipFactor;
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//inputSampleR /= clipFactor;
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//opamp stage
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if (fabs(iirSampleAL)<1.18e-37) iirSampleAL = 0.0;
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iirSampleAL = (iirSampleAL * (1.0 - iirAmountA)) + (inputSampleL * iirAmountA);
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inputSampleL -= iirSampleAL;
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if (fabs(iirSampleAR)<1.18e-37) iirSampleAR = 0.0;
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iirSampleAR = (iirSampleAR * (1.0 - iirAmountA)) + (inputSampleR * iirAmountA);
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inputSampleR -= iirSampleAR;
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outSample = (inputSampleL * fixA[fix_a0]) + fixA[fix_sL1];
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fixA[fix_sL1] = (inputSampleL * fixA[fix_a1]) - (outSample * fixA[fix_b1]) + fixA[fix_sL2];
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fixA[fix_sL2] = (inputSampleL * fixA[fix_a2]) - (outSample * fixA[fix_b2]);
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inputSampleL = outSample; //fixed biquad filtering ultrasonics
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outSample = (inputSampleR * fixA[fix_a0]) + fixA[fix_sR1];
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fixA[fix_sR1] = (inputSampleR * fixA[fix_a1]) - (outSample * fixA[fix_b1]) + fixA[fix_sR2];
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fixA[fix_sR2] = (inputSampleR * fixA[fix_a2]) - (outSample * fixA[fix_b2]);
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inputSampleR = outSample; //fixed biquad filtering ultrasonics
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if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
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inputSampleL -= (inputSampleL*inputSampleL*inputSampleL*inputSampleL*inputSampleL*0.1768);
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if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
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inputSampleR -= (inputSampleR*inputSampleR*inputSampleR*inputSampleR*inputSampleR*0.1768);
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outSample = (inputSampleL * fixB[fix_a0]) + fixB[fix_sL1];
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fixB[fix_sL1] = (inputSampleL * fixB[fix_a1]) - (outSample * fixB[fix_b1]) + fixB[fix_sL2];
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fixB[fix_sL2] = (inputSampleL * fixB[fix_a2]) - (outSample * fixB[fix_b2]);
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inputSampleL = outSample; //fixed biquad filtering ultrasonics
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outSample = (inputSampleR * fixB[fix_a0]) + fixB[fix_sR1];
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fixB[fix_sR1] = (inputSampleR * fixB[fix_a1]) - (outSample * fixB[fix_b1]) + fixB[fix_sR2];
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fixB[fix_sR2] = (inputSampleR * fixB[fix_a2]) - (outSample * fixB[fix_b2]);
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inputSampleR = outSample; //fixed biquad filtering ultrasonics
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if (outTrim != 1.0) {
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inputSampleL *= outTrim;
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inputSampleR *= outTrim;
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}
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//end opamp stage
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if (aWet != 1.0) {
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inputSampleL = (inputSampleL*aWet) + (overallDrySampleL*(1.0-aWet));
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inputSampleR = (inputSampleR*aWet) + (overallDrySampleR*(1.0-aWet));
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}
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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in1++;
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in2++;
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out1++;
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out2++;
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}
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}
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void ZHighpass2::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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biquadA[biq_freq] = ((pow(B,4)*9500.0)/getSampleRate())+0.00076;
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//double clipFactor = 1.212-((1.0-B)*0.496);
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biquadA[biq_reso] = 1.0;
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biquadA[biq_aA0] = biquadA[biq_aB0];
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biquadA[biq_aA1] = biquadA[biq_aB1];
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biquadA[biq_aA2] = biquadA[biq_aB2];
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biquadA[biq_bA1] = biquadA[biq_bB1];
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biquadA[biq_bA2] = biquadA[biq_bB2];
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//previous run through the buffer is still in the filter, so we move it
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//to the A section and now it's the new starting point.
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double K = tan(M_PI * biquadA[biq_freq]);
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double norm = 1.0 / (1.0 + K / biquadA[biq_reso] + K * K);
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biquadA[biq_aB0] = norm;
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biquadA[biq_aB1] = -2.0 * biquadA[biq_aB0];
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biquadA[biq_aB2] = biquadA[biq_aB0];
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biquadA[biq_bB1] = 2.0 * (K * K - 1.0) * norm;
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biquadA[biq_bB2] = (1.0 - K / biquadA[biq_reso] + K * K) * norm;
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//opamp stuff
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inTrimA = inTrimB;
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inTrimB = A*10.0;
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inTrimB *= inTrimB; inTrimB *= inTrimB;
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outTrimA = outTrimB;
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outTrimB = C*10.0;
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wetA = wetB;
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wetB = pow(D,2);
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double iirAmountA = 0.00069/overallscale;
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fixA[fix_freq] = fixB[fix_freq] = 15500.0 / getSampleRate();
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fixA[fix_reso] = fixB[fix_reso] = 0.935;
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K = tan(M_PI * fixB[fix_freq]); //lowpass
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norm = 1.0 / (1.0 + K / fixB[fix_reso] + K * K);
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fixA[fix_a0] = fixB[fix_a0] = K * K * norm;
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fixA[fix_a1] = fixB[fix_a1] = 2.0 * fixB[fix_a0];
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fixA[fix_a2] = fixB[fix_a2] = fixB[fix_a0];
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fixA[fix_b1] = fixB[fix_b1] = 2.0 * (K * K - 1.0) * norm;
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fixA[fix_b2] = fixB[fix_b2] = (1.0 - K / fixB[fix_reso] + K * K) * norm;
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//end opamp stuff
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double trim = 0.1+(3.712*biquadA[biq_freq]);
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while (--sampleFrames >= 0)
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{
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long double inputSampleL = *in1;
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long double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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long double drySampleL = inputSampleL;
|
||||
long double drySampleR = inputSampleR;
|
||||
long double overallDrySampleL = inputSampleL;
|
||||
long double overallDrySampleR = inputSampleR;
|
||||
|
||||
long double outSample = (long double)sampleFrames/inFramesToProcess;
|
||||
biquadA[biq_a0] = (biquadA[biq_aA0]*outSample)+(biquadA[biq_aB0]*(1.0-outSample));
|
||||
biquadA[biq_a1] = (biquadA[biq_aA1]*outSample)+(biquadA[biq_aB1]*(1.0-outSample));
|
||||
biquadA[biq_a2] = (biquadA[biq_aA2]*outSample)+(biquadA[biq_aB2]*(1.0-outSample));
|
||||
biquadA[biq_b1] = (biquadA[biq_bA1]*outSample)+(biquadA[biq_bB1]*(1.0-outSample));
|
||||
biquadA[biq_b2] = (biquadA[biq_bA2]*outSample)+(biquadA[biq_bB2]*(1.0-outSample));
|
||||
for (int x = 0; x < 7; x++) {biquadD[x] = biquadC[x] = biquadB[x] = biquadA[x];}
|
||||
//this is the interpolation code for the biquad
|
||||
long double inTrim = (inTrimA*outSample)+(inTrimB*(1.0-outSample));
|
||||
long double outTrim = (outTrimA*outSample)+(outTrimB*(1.0-outSample));
|
||||
long double wet = (wetA*outSample)+(wetB*(1.0-outSample));
|
||||
long double aWet = 1.0;
|
||||
long double bWet = 1.0;
|
||||
long double cWet = 1.0;
|
||||
long double dWet = wet*4.0;
|
||||
//four-stage wet/dry control using progressive stages that bypass when not engaged
|
||||
if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
|
||||
else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
|
||||
else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
|
||||
else {dWet -= 3.0;}
|
||||
//this is one way to make a little set of dry/wet stages that are successively added to the
|
||||
//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
|
||||
//beyond that point: this is a way to progressively add a 'black box' sound processing
|
||||
//which lets you fall through to simpler processing at lower settings.
|
||||
if (inTrim != 1.0) {
|
||||
inputSampleL *= inTrim;
|
||||
inputSampleR *= inTrim;
|
||||
}
|
||||
if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
|
||||
if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
|
||||
inputSampleL *= trim; inputSampleR *= trim;
|
||||
//inputSampleL /= clipFactor; inputSampleR /= clipFactor;
|
||||
outSample = (inputSampleL * biquadA[biq_a0]) + biquadA[biq_sL1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadA[biq_sL1] = (inputSampleL * biquadA[biq_a1]) - (outSample * biquadA[biq_b1]) + biquadA[biq_sL2];
|
||||
biquadA[biq_sL2] = (inputSampleL * biquadA[biq_a2]) - (outSample * biquadA[biq_b2]);
|
||||
drySampleL = inputSampleL = outSample;
|
||||
outSample = (inputSampleR * biquadA[biq_a0]) + biquadA[biq_sR1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadA[biq_sR1] = (inputSampleR * biquadA[biq_a1]) - (outSample * biquadA[biq_b1]) + biquadA[biq_sR2];
|
||||
biquadA[biq_sR2] = (inputSampleR * biquadA[biq_a2]) - (outSample * biquadA[biq_b2]);
|
||||
drySampleR = inputSampleR = outSample;
|
||||
|
||||
if (bWet > 0.0) {
|
||||
//inputSampleL /= clipFactor;
|
||||
outSample = (inputSampleL * biquadB[biq_a0]) + biquadB[biq_sL1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadB[biq_sL1] = (inputSampleL * biquadB[biq_a1]) - (outSample * biquadB[biq_b1]) + biquadB[biq_sL2];
|
||||
biquadB[biq_sL2] = (inputSampleL * biquadB[biq_a2]) - (outSample * biquadB[biq_b2]);
|
||||
drySampleL = inputSampleL = (outSample * bWet) + (drySampleL * (1.0-bWet));
|
||||
//inputSampleR /= clipFactor;
|
||||
outSample = (inputSampleR * biquadB[biq_a0]) + biquadB[biq_sR1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadB[biq_sR1] = (inputSampleR * biquadB[biq_a1]) - (outSample * biquadB[biq_b1]) + biquadB[biq_sR2];
|
||||
biquadB[biq_sR2] = (inputSampleR * biquadB[biq_a2]) - (outSample * biquadB[biq_b2]);
|
||||
drySampleR = inputSampleR = (outSample * bWet) + (drySampleR * (1.0-bWet));
|
||||
}
|
||||
|
||||
if (cWet > 0.0) {
|
||||
//inputSampleL /= clipFactor;
|
||||
outSample = (inputSampleL * biquadC[biq_a0]) + biquadC[biq_sL1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadC[biq_sL1] = (inputSampleL * biquadC[biq_a1]) - (outSample * biquadC[biq_b1]) + biquadC[biq_sL2];
|
||||
biquadC[biq_sL2] = (inputSampleL * biquadC[biq_a2]) - (outSample * biquadC[biq_b2]);
|
||||
drySampleL = inputSampleL = (outSample * cWet) + (drySampleL * (1.0-cWet));
|
||||
//inputSampleR /= clipFactor;
|
||||
outSample = (inputSampleR * biquadC[biq_a0]) + biquadC[biq_sR1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadC[biq_sR1] = (inputSampleR * biquadC[biq_a1]) - (outSample * biquadC[biq_b1]) + biquadC[biq_sR2];
|
||||
biquadC[biq_sR2] = (inputSampleR * biquadC[biq_a2]) - (outSample * biquadC[biq_b2]);
|
||||
drySampleR = inputSampleR = (outSample * cWet) + (drySampleR * (1.0-cWet));
|
||||
}
|
||||
|
||||
if (dWet > 0.0) {
|
||||
//inputSampleL /= clipFactor;
|
||||
outSample = (inputSampleL * biquadD[biq_a0]) + biquadD[biq_sL1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadD[biq_sL1] = (inputSampleL * biquadD[biq_a1]) - (outSample * biquadD[biq_b1]) + biquadD[biq_sL2];
|
||||
biquadD[biq_sL2] = (inputSampleL * biquadD[biq_a2]) - (outSample * biquadD[biq_b2]);
|
||||
drySampleL = inputSampleL = (outSample * dWet) + (drySampleL * (1.0-dWet));
|
||||
//inputSampleR /= clipFactor;
|
||||
outSample = (inputSampleR * biquadD[biq_a0]) + biquadD[biq_sR1];
|
||||
if (outSample > 1.0) outSample = 1.0; if (outSample < -1.0) outSample = -1.0;
|
||||
biquadD[biq_sR1] = (inputSampleR * biquadD[biq_a1]) - (outSample * biquadD[biq_b1]) + biquadD[biq_sR2];
|
||||
biquadD[biq_sR2] = (inputSampleR * biquadD[biq_a2]) - (outSample * biquadD[biq_b2]);
|
||||
drySampleR = inputSampleR = (outSample * dWet) + (drySampleR * (1.0-dWet));
|
||||
}
|
||||
|
||||
//inputSampleL /= clipFactor;
|
||||
//inputSampleR /= clipFactor;
|
||||
|
||||
//opamp stage
|
||||
if (fabs(iirSampleAL)<1.18e-37) iirSampleAL = 0.0;
|
||||
iirSampleAL = (iirSampleAL * (1.0 - iirAmountA)) + (inputSampleL * iirAmountA);
|
||||
inputSampleL -= iirSampleAL;
|
||||
if (fabs(iirSampleAR)<1.18e-37) iirSampleAR = 0.0;
|
||||
iirSampleAR = (iirSampleAR * (1.0 - iirAmountA)) + (inputSampleR * iirAmountA);
|
||||
inputSampleR -= iirSampleAR;
|
||||
|
||||
outSample = (inputSampleL * fixA[fix_a0]) + fixA[fix_sL1];
|
||||
fixA[fix_sL1] = (inputSampleL * fixA[fix_a1]) - (outSample * fixA[fix_b1]) + fixA[fix_sL2];
|
||||
fixA[fix_sL2] = (inputSampleL * fixA[fix_a2]) - (outSample * fixA[fix_b2]);
|
||||
inputSampleL = outSample; //fixed biquad filtering ultrasonics
|
||||
outSample = (inputSampleR * fixA[fix_a0]) + fixA[fix_sR1];
|
||||
fixA[fix_sR1] = (inputSampleR * fixA[fix_a1]) - (outSample * fixA[fix_b1]) + fixA[fix_sR2];
|
||||
fixA[fix_sR2] = (inputSampleR * fixA[fix_a2]) - (outSample * fixA[fix_b2]);
|
||||
inputSampleR = outSample; //fixed biquad filtering ultrasonics
|
||||
|
||||
if (inputSampleL > 1.0) inputSampleL = 1.0; if (inputSampleL < -1.0) inputSampleL = -1.0;
|
||||
inputSampleL -= (inputSampleL*inputSampleL*inputSampleL*inputSampleL*inputSampleL*0.1768);
|
||||
if (inputSampleR > 1.0) inputSampleR = 1.0; if (inputSampleR < -1.0) inputSampleR = -1.0;
|
||||
inputSampleR -= (inputSampleR*inputSampleR*inputSampleR*inputSampleR*inputSampleR*0.1768);
|
||||
|
||||
outSample = (inputSampleL * fixB[fix_a0]) + fixB[fix_sL1];
|
||||
fixB[fix_sL1] = (inputSampleL * fixB[fix_a1]) - (outSample * fixB[fix_b1]) + fixB[fix_sL2];
|
||||
fixB[fix_sL2] = (inputSampleL * fixB[fix_a2]) - (outSample * fixB[fix_b2]);
|
||||
inputSampleL = outSample; //fixed biquad filtering ultrasonics
|
||||
outSample = (inputSampleR * fixB[fix_a0]) + fixB[fix_sR1];
|
||||
fixB[fix_sR1] = (inputSampleR * fixB[fix_a1]) - (outSample * fixB[fix_b1]) + fixB[fix_sR2];
|
||||
fixB[fix_sR2] = (inputSampleR * fixB[fix_a2]) - (outSample * fixB[fix_b2]);
|
||||
inputSampleR = outSample; //fixed biquad filtering ultrasonics
|
||||
|
||||
if (outTrim != 1.0) {
|
||||
inputSampleL *= outTrim;
|
||||
inputSampleR *= outTrim;
|
||||
}
|
||||
//end opamp stage
|
||||
|
||||
if (aWet != 1.0) {
|
||||
inputSampleL = (inputSampleL*aWet) + (overallDrySampleL*(1.0-aWet));
|
||||
inputSampleR = (inputSampleR*aWet) + (overallDrySampleR*(1.0-aWet));
|
||||
}
|
||||
|
||||
//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++;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue