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https://github.com/airwindows/airwindows.git
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372 lines
15 KiB
C++
Executable file
372 lines
15 KiB
C++
Executable file
/* ========================================
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* Distance3 - Distance3.h
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* Copyright (c) airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Distance3_H
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#include "Distance3.h"
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#endif
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void Distance3::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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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double softslew = (A*100.0)+0.5;
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softslew *= overallscale;
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double outslew = softslew * (1.0-(A*0.333));
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double refdB = (B*70.0)+70.0;
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double topdB = 0.000000075 * pow(10.0,refdB/20.0) * overallscale;
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double wet = C;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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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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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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inputSampleL *= softslew;
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lastclampAL = clampAL; clampAL = inputSampleL - lastAL;
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double postfilter = changeAL = fabs(clampAL - lastclampAL);
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postfilter += (softslew / 2.0);
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inputSampleL /= outslew;
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inputSampleL += (prevresultAL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultAL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity A begin
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dBaL[dBaXL] = inputSampleL; dBaPosL *= 0.5; dBaPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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int dBdly = floor(dBaPosL*dscBuf);
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double dBi = (dBaPosL*dscBuf)-dBdly;
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inputSampleL = dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBaXL++; if (dBaXL < 0 || dBaXL >= dscBuf) dBaXL = 0;
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//Air Discontinuity A end
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inputSampleL /= topdB;
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inputSampleL *= softslew;
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lastclampBL = clampBL; clampBL = inputSampleL - lastBL;
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postfilter = changeBL = fabs(clampBL - lastclampBL);
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postfilter += (softslew / 2.0);
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lastBL = inputSampleL;
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inputSampleL /= outslew;
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inputSampleL += (prevresultBL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultBL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity B begin
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dBbL[dBbXL] = inputSampleL; dBbPosL *= 0.5; dBbPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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dBdly = floor(dBbPosL*dscBuf); dBi = (dBbPosL*dscBuf)-dBdly;
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inputSampleL = dBbL[dBbXL-dBdly +((dBbXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBbL[dBbXL-dBdly +((dBbXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBbXL++; if (dBbXL < 0 || dBbXL >= dscBuf) dBbXL = 0;
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//Air Discontinuity B end
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inputSampleL /= topdB;
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inputSampleL *= softslew;
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lastclampCL = clampCL; clampCL = inputSampleL - lastCL;
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postfilter = changeCL = fabs(clampCL - lastclampCL);
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postfilter += (softslew / 2.0);
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lastCL = inputSampleL;
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inputSampleL /= softslew; //don't boost the final time!
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inputSampleL += (prevresultCL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultCL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity C begin
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dBcL[dBcXL] = inputSampleL; dBcPosL *= 0.5; dBcPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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dBdly = floor(dBcPosL*dscBuf); dBi = (dBcPosL*dscBuf)-dBdly;
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inputSampleL = dBcL[dBcXL-dBdly +((dBcXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBcL[dBcXL-dBdly +((dBcXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBcXL++; if (dBcXL < 0 || dBcXL >= dscBuf) dBcXL = 0;
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//Air Discontinuity C end
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inputSampleL /= topdB;
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if (wet < 1.0) inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL*wet);
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inputSampleR *= softslew;
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lastclampAR = clampAR; clampAR = inputSampleR - lastAR;
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postfilter = changeAR = fabs(clampAR - lastclampAR);
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postfilter += (softslew / 2.0);
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inputSampleR /= outslew;
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inputSampleR += (prevresultAR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultAR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity A begin
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dBaR[dBaXR] = inputSampleR; dBaPosR *= 0.5; dBaPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBaPosR*dscBuf);
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dBi = (dBaPosR*dscBuf)-dBdly;
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inputSampleR = dBaR[dBaXR-dBdly +((dBaXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBaR[dBaXR-dBdly +((dBaXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBaXR++; if (dBaXR < 0 || dBaXR >= dscBuf) dBaXR = 0;
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//Air Discontinuity A end
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inputSampleR /= topdB;
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inputSampleR *= softslew;
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lastclampBR = clampBR; clampBR = inputSampleR - lastBR;
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postfilter = changeBR = fabs(clampBR - lastclampBR);
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postfilter += (softslew / 2.0);
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lastBR = inputSampleR;
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inputSampleR /= outslew;
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inputSampleR += (prevresultBR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultBR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity B begin
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dBbR[dBbXR] = inputSampleR; dBbPosR *= 0.5; dBbPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBbPosR*dscBuf); dBi = (dBbPosR*dscBuf)-dBdly;
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inputSampleR = dBbR[dBbXR-dBdly +((dBbXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBbR[dBbXR-dBdly +((dBbXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBbXR++; if (dBbXR < 0 || dBbXR >= dscBuf) dBbXR = 0;
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//Air Discontinuity B end
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inputSampleR /= topdB;
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inputSampleR *= softslew;
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lastclampCR = clampCR; clampCR = inputSampleR - lastCR;
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postfilter = changeCR = fabs(clampCR - lastclampCR);
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postfilter += (softslew / 2.0);
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lastCR = inputSampleR;
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inputSampleR /= softslew; //don't boost the final time!
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inputSampleR += (prevresultCR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultCR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity C begin
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dBcR[dBcXR] = inputSampleR; dBcPosR *= 0.5; dBcPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBcPosR*dscBuf); dBi = (dBcPosR*dscBuf)-dBdly;
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inputSampleR = dBcR[dBcXR-dBdly +((dBcXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBcR[dBcXR-dBdly +((dBcXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBcXR++; if (dBcXR < 0 || dBcXR >= dscBuf) dBcXR = 0;
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//Air Discontinuity C end
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inputSampleR /= topdB;
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if (wet < 1.0) inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR*wet);
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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 Distance3::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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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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double softslew = (A*100.0)+0.5;
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softslew *= overallscale;
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double outslew = softslew * (1.0-(A*0.333));
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double refdB = (B*70.0)+70.0;
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double topdB = 0.000000075 * pow(10.0,refdB/20.0) * overallscale;
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double wet = C;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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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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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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inputSampleL *= softslew;
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lastclampAL = clampAL; clampAL = inputSampleL - lastAL;
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double postfilter = changeAL = fabs(clampAL - lastclampAL);
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postfilter += (softslew / 2.0);
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inputSampleL /= outslew;
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inputSampleL += (prevresultAL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultAL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity A begin
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dBaL[dBaXL] = inputSampleL; dBaPosL *= 0.5; dBaPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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int dBdly = floor(dBaPosL*dscBuf);
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double dBi = (dBaPosL*dscBuf)-dBdly;
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inputSampleL = dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBaL[dBaXL-dBdly +((dBaXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBaXL++; if (dBaXL < 0 || dBaXL >= dscBuf) dBaXL = 0;
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//Air Discontinuity A end
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inputSampleL /= topdB;
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inputSampleL *= softslew;
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lastclampBL = clampBL; clampBL = inputSampleL - lastBL;
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postfilter = changeBL = fabs(clampBL - lastclampBL);
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postfilter += (softslew / 2.0);
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lastBL = inputSampleL;
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inputSampleL /= outslew;
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inputSampleL += (prevresultBL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultBL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity B begin
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dBbL[dBbXL] = inputSampleL; dBbPosL *= 0.5; dBbPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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dBdly = floor(dBbPosL*dscBuf); dBi = (dBbPosL*dscBuf)-dBdly;
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inputSampleL = dBbL[dBbXL-dBdly +((dBbXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBbL[dBbXL-dBdly +((dBbXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBbXL++; if (dBbXL < 0 || dBbXL >= dscBuf) dBbXL = 0;
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//Air Discontinuity B end
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inputSampleL /= topdB;
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inputSampleL *= softslew;
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lastclampCL = clampCL; clampCL = inputSampleL - lastCL;
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postfilter = changeCL = fabs(clampCL - lastclampCL);
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postfilter += (softslew / 2.0);
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lastCL = inputSampleL;
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inputSampleL /= softslew; //don't boost the final time!
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inputSampleL += (prevresultCL * postfilter);
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inputSampleL /= (postfilter + 1.0);
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prevresultCL = inputSampleL;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleL *= topdB;
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if (inputSampleL < -0.222) inputSampleL = -0.222; if (inputSampleL > 0.222) inputSampleL = 0.222;
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//Air Discontinuity C begin
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dBcL[dBcXL] = inputSampleL; dBcPosL *= 0.5; dBcPosL += fabs((inputSampleL*((inputSampleL*0.25)-0.5))*0.5);
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dBdly = floor(dBcPosL*dscBuf); dBi = (dBcPosL*dscBuf)-dBdly;
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inputSampleL = dBcL[dBcXL-dBdly +((dBcXL-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleL += dBcL[dBcXL-dBdly +((dBcXL-dBdly < 0)?dscBuf:0)]*dBi;
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dBcXL++; if (dBcXL < 0 || dBcXL >= dscBuf) dBcXL = 0;
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//Air Discontinuity C end
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inputSampleL /= topdB;
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if (wet < 1.0) inputSampleL = (drySampleL * (1.0-wet))+(inputSampleL*wet);
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inputSampleR *= softslew;
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lastclampAR = clampAR; clampAR = inputSampleR - lastAR;
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postfilter = changeAR = fabs(clampAR - lastclampAR);
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postfilter += (softslew / 2.0);
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inputSampleR /= outslew;
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inputSampleR += (prevresultAR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultAR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity A begin
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dBaR[dBaXR] = inputSampleR; dBaPosR *= 0.5; dBaPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBaPosR*dscBuf);
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dBi = (dBaPosR*dscBuf)-dBdly;
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inputSampleR = dBaR[dBaXR-dBdly +((dBaXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBaR[dBaXR-dBdly +((dBaXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBaXR++; if (dBaXR < 0 || dBaXR >= dscBuf) dBaXR = 0;
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//Air Discontinuity A end
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inputSampleR /= topdB;
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inputSampleR *= softslew;
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lastclampBR = clampBR; clampBR = inputSampleR - lastBR;
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postfilter = changeBR = fabs(clampBR - lastclampBR);
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postfilter += (softslew / 2.0);
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lastBR = inputSampleR;
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inputSampleR /= outslew;
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inputSampleR += (prevresultBR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultBR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity B begin
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dBbR[dBbXR] = inputSampleR; dBbPosR *= 0.5; dBbPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBbPosR*dscBuf); dBi = (dBbPosR*dscBuf)-dBdly;
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inputSampleR = dBbR[dBbXR-dBdly +((dBbXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBbR[dBbXR-dBdly +((dBbXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBbXR++; if (dBbXR < 0 || dBbXR >= dscBuf) dBbXR = 0;
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//Air Discontinuity B end
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inputSampleR /= topdB;
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inputSampleR *= softslew;
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lastclampCR = clampCR; clampCR = inputSampleR - lastCR;
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postfilter = changeCR = fabs(clampCR - lastclampCR);
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postfilter += (softslew / 2.0);
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lastCR = inputSampleR;
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inputSampleR /= softslew; //don't boost the final time!
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inputSampleR += (prevresultCR * postfilter);
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inputSampleR /= (postfilter + 1.0);
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prevresultCR = inputSampleR;
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//do an IIR like thing to further squish superdistant stuff
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inputSampleR *= topdB;
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if (inputSampleR < -0.222) inputSampleR = -0.222; if (inputSampleR > 0.222) inputSampleR = 0.222;
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//Air Discontinuity C begin
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dBcR[dBcXR] = inputSampleR; dBcPosR *= 0.5; dBcPosR += fabs((inputSampleR*((inputSampleR*0.25)-0.5))*0.5);
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dBdly = floor(dBcPosR*dscBuf); dBi = (dBcPosR*dscBuf)-dBdly;
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inputSampleR = dBcR[dBcXR-dBdly +((dBcXR-dBdly < 0)?dscBuf:0)]*(1.0-dBi);
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dBdly++; inputSampleR += dBcR[dBcXR-dBdly +((dBcXR-dBdly < 0)?dscBuf:0)]*dBi;
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dBcXR++; if (dBcXR < 0 || dBcXR >= dscBuf) dBcXR = 0;
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//Air Discontinuity C end
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inputSampleR /= topdB;
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if (wet < 1.0) inputSampleR = (drySampleR * (1.0-wet))+(inputSampleR*wet);
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)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)) * 1.1e-44l * pow(2,expon+62));
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//frexp((double)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)) * 1.1e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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|
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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|
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in1++;
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in2++;
|
|
out1++;
|
|
out2++;
|
|
}
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}
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