/* ======================================== * ConsoleHBuss - ConsoleHBuss.h * Copyright (c) airwindows, Airwindows uses the MIT license * ======================================== */ #ifndef __ConsoleHBuss_H #include "ConsoleHBuss.h" #endif void ConsoleHBuss::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) { float* in1 = inputs[0]; float* in2 = inputs[1]; float* out1 = outputs[0]; float* out2 = outputs[1]; VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it double overallscale = 1.0; overallscale /= 44100.0; overallscale *= getSampleRate(); int spacing = floor(overallscale*2.0); if (spacing < 2) spacing = 2; if (spacing > 32) spacing = 32; double trebleGain = (HIG-0.5)*2.0; trebleGain = 1.0+(trebleGain*fabs(trebleGain)*fabs(trebleGain)); double midGain = (MID-0.5)*2.0; midGain = 1.0+(midGain*fabs(midGain)*fabs(midGain)); double bassGain = (LOW-0.5)*2.0; bassGain = 1.0+(bassGain*fabs(bassGain)*fabs(bassGain)); //separate from filtering stage, this is amplitude, centered on 1.0 unity gain double highCoef = 0.0; double lowCoef = 0.0; double omega = 0.0; double biqK = 0.0; double norm = 0.0; bool eqOff = (trebleGain == 1.0 && midGain == 1.0 && bassGain == 1.0); //we get to completely bypass EQ if we're truly not using it. The mechanics of it mean that //it cancels out to bit-identical anyhow, but we get to skip the calculation if (!eqOff) { //SmoothEQ3 is how to get 3rd order steepness at very low CPU. //because sample rate varies, you could also vary the crossovers //you can't vary Q because math is simplified to take advantage of //how the accurate Q value for this filter is always exactly 1.0. highFast[biq_freq] = (4000.0/getSampleRate()); omega = 2.0*M_PI*(4000.0/getSampleRate()); //mid-high crossover freq biqK = 2.0 - cos(omega); highCoef = -sqrt(biqK*biqK - 1.0) + biqK; lowFast[biq_freq] = (200.0/getSampleRate()); omega = 2.0*M_PI*(200.0/getSampleRate()); //low-mid crossover freq biqK = 2.0 - cos(omega); lowCoef = -sqrt(biqK*biqK - 1.0) + biqK; //exponential IIR filter as part of an accurate 3rd order Butterworth filter biqK = tan(M_PI * highFast[biq_freq]); norm = 1.0 / (1.0 + biqK + biqK*biqK); highFast[biq_a0] = biqK * biqK * norm; highFast[biq_a1] = 2.0 * highFast[biq_a0]; highFast[biq_a2] = highFast[biq_a0]; highFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm; highFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm; biqK = tan(M_PI * lowFast[biq_freq]); norm = 1.0 / (1.0 + biqK + biqK*biqK); lowFast[biq_a0] = biqK * biqK * norm; lowFast[biq_a1] = 2.0 * lowFast[biq_a0]; lowFast[biq_a2] = lowFast[biq_a0]; lowFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm; lowFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm; //custom biquad setup with Q = 1.0 gets to omit some divides } //SmoothEQ3 double bezCThresh = pow(1.0-THR, 6.0) * 8.0; double bezRez = pow(1.0-THR, 12.360679774997898) / overallscale; double sloRez = pow(1.0-THR,10.0) / overallscale; sloRez = fmin(fmax(sloRez,0.00001),1.0); bezRez = fmin(fmax(bezRez,0.00001),1.0); //Dynamics2 highpass[hilp_freq] = ((pow(HIP,3)*24000.0)+10.0)/getSampleRate(); if (highpass[hilp_freq] > 0.495) highpass[hilp_freq] = 0.495; bool highpassEngage = true; if (HIP == 0.0) highpassEngage = false; lowpass[hilp_freq] = ((pow(LOP,3)*24000.0)+10.0)/getSampleRate(); if (lowpass[hilp_freq] > 0.495) lowpass[hilp_freq] = 0.495; bool lowpassEngage = true; if (LOP == 1.0) lowpassEngage = false; highpass[hilp_aA0] = highpass[hilp_aB0]; highpass[hilp_aA1] = highpass[hilp_aB1]; highpass[hilp_bA1] = highpass[hilp_bB1]; highpass[hilp_bA2] = highpass[hilp_bB2]; highpass[hilp_cA0] = highpass[hilp_cB0]; highpass[hilp_cA1] = highpass[hilp_cB1]; highpass[hilp_dA1] = highpass[hilp_dB1]; highpass[hilp_dA2] = highpass[hilp_dB2]; highpass[hilp_eA0] = highpass[hilp_eB0]; highpass[hilp_eA1] = highpass[hilp_eB1]; highpass[hilp_fA1] = highpass[hilp_fB1]; highpass[hilp_fA2] = highpass[hilp_fB2]; lowpass[hilp_aA0] = lowpass[hilp_aB0]; lowpass[hilp_aA1] = lowpass[hilp_aB1]; lowpass[hilp_bA1] = lowpass[hilp_bB1]; lowpass[hilp_bA2] = lowpass[hilp_bB2]; lowpass[hilp_cA0] = lowpass[hilp_cB0]; lowpass[hilp_cA1] = lowpass[hilp_cB1]; lowpass[hilp_dA1] = lowpass[hilp_dB1]; lowpass[hilp_dA2] = lowpass[hilp_dB2]; lowpass[hilp_eA0] = lowpass[hilp_eB0]; lowpass[hilp_eA1] = lowpass[hilp_eB1]; lowpass[hilp_fA1] = lowpass[hilp_fB1]; lowpass[hilp_fA2] = lowpass[hilp_fB2]; //previous run through the buffer is still in the filter, so we move it //to the A section and now it's the new starting point. //On the buss, highpass and lowpass are isolators meant to be moved, //so they are interpolated where the channels are not biqK = tan(M_PI * highpass[hilp_freq]); //highpass norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK); highpass[hilp_aB0] = norm; highpass[hilp_aB1] = -2.0 * highpass[hilp_aB0]; highpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK); highpass[hilp_cB0] = norm; highpass[hilp_cB1] = -2.0 * highpass[hilp_cB0]; highpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK); highpass[hilp_eB0] = norm; highpass[hilp_eB1] = -2.0 * highpass[hilp_eB0]; highpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm; biqK = tan(M_PI * lowpass[hilp_freq]); //lowpass norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK); lowpass[hilp_aB0] = biqK * biqK * norm; lowpass[hilp_aB1] = 2.0 * lowpass[hilp_aB0]; lowpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK); lowpass[hilp_cB0] = biqK * biqK * norm; lowpass[hilp_cB1] = 2.0 * lowpass[hilp_cB0]; lowpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK); lowpass[hilp_eB0] = biqK * biqK * norm; lowpass[hilp_eB1] = 2.0 * lowpass[hilp_eB0]; lowpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm; if (highpass[hilp_aA0] == 0.0) { // if we have just started, start directly with raw info highpass[hilp_aA0] = highpass[hilp_aB0]; highpass[hilp_aA1] = highpass[hilp_aB1]; highpass[hilp_bA1] = highpass[hilp_bB1]; highpass[hilp_bA2] = highpass[hilp_bB2]; highpass[hilp_cA0] = highpass[hilp_cB0]; highpass[hilp_cA1] = highpass[hilp_cB1]; highpass[hilp_dA1] = highpass[hilp_dB1]; highpass[hilp_dA2] = highpass[hilp_dB2]; highpass[hilp_eA0] = highpass[hilp_eB0]; highpass[hilp_eA1] = highpass[hilp_eB1]; highpass[hilp_fA1] = highpass[hilp_fB1]; highpass[hilp_fA2] = highpass[hilp_fB2]; lowpass[hilp_aA0] = lowpass[hilp_aB0]; lowpass[hilp_aA1] = lowpass[hilp_aB1]; lowpass[hilp_bA1] = lowpass[hilp_bB1]; lowpass[hilp_bA2] = lowpass[hilp_bB2]; lowpass[hilp_cA0] = lowpass[hilp_cB0]; lowpass[hilp_cA1] = lowpass[hilp_cB1]; lowpass[hilp_dA1] = lowpass[hilp_dB1]; lowpass[hilp_dA2] = lowpass[hilp_dB2]; lowpass[hilp_eA0] = lowpass[hilp_eB0]; lowpass[hilp_eA1] = lowpass[hilp_eB1]; lowpass[hilp_fA1] = lowpass[hilp_fB1]; lowpass[hilp_fA2] = lowpass[hilp_fB2]; } panA = panB; panB = PAN*1.57079633; inTrimA = inTrimB; inTrimB = FAD*2.0; //Console 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; const double temp = (double)sampleFrames/inFramesToProcess; highpass[hilp_a0] = (highpass[hilp_aA0]*temp)+(highpass[hilp_aB0]*(1.0-temp)); highpass[hilp_a1] = (highpass[hilp_aA1]*temp)+(highpass[hilp_aB1]*(1.0-temp)); highpass[hilp_b1] = (highpass[hilp_bA1]*temp)+(highpass[hilp_bB1]*(1.0-temp)); highpass[hilp_b2] = (highpass[hilp_bA2]*temp)+(highpass[hilp_bB2]*(1.0-temp)); highpass[hilp_c0] = (highpass[hilp_cA0]*temp)+(highpass[hilp_cB0]*(1.0-temp)); highpass[hilp_c1] = (highpass[hilp_cA1]*temp)+(highpass[hilp_cB1]*(1.0-temp)); highpass[hilp_d1] = (highpass[hilp_dA1]*temp)+(highpass[hilp_dB1]*(1.0-temp)); highpass[hilp_d2] = (highpass[hilp_dA2]*temp)+(highpass[hilp_dB2]*(1.0-temp)); highpass[hilp_e0] = (highpass[hilp_eA0]*temp)+(highpass[hilp_eB0]*(1.0-temp)); highpass[hilp_e1] = (highpass[hilp_eA1]*temp)+(highpass[hilp_eB1]*(1.0-temp)); highpass[hilp_f1] = (highpass[hilp_fA1]*temp)+(highpass[hilp_fB1]*(1.0-temp)); highpass[hilp_f2] = (highpass[hilp_fA2]*temp)+(highpass[hilp_fB2]*(1.0-temp)); lowpass[hilp_a0] = (lowpass[hilp_aA0]*temp)+(lowpass[hilp_aB0]*(1.0-temp)); lowpass[hilp_a1] = (lowpass[hilp_aA1]*temp)+(lowpass[hilp_aB1]*(1.0-temp)); lowpass[hilp_b1] = (lowpass[hilp_bA1]*temp)+(lowpass[hilp_bB1]*(1.0-temp)); lowpass[hilp_b2] = (lowpass[hilp_bA2]*temp)+(lowpass[hilp_bB2]*(1.0-temp)); lowpass[hilp_c0] = (lowpass[hilp_cA0]*temp)+(lowpass[hilp_cB0]*(1.0-temp)); lowpass[hilp_c1] = (lowpass[hilp_cA1]*temp)+(lowpass[hilp_cB1]*(1.0-temp)); lowpass[hilp_d1] = (lowpass[hilp_dA1]*temp)+(lowpass[hilp_dB1]*(1.0-temp)); lowpass[hilp_d2] = (lowpass[hilp_dA2]*temp)+(lowpass[hilp_dB2]*(1.0-temp)); lowpass[hilp_e0] = (lowpass[hilp_eA0]*temp)+(lowpass[hilp_eB0]*(1.0-temp)); lowpass[hilp_e1] = (lowpass[hilp_eA1]*temp)+(lowpass[hilp_eB1]*(1.0-temp)); lowpass[hilp_f1] = (lowpass[hilp_fA1]*temp)+(lowpass[hilp_fB1]*(1.0-temp)); lowpass[hilp_f2] = (lowpass[hilp_fA2]*temp)+(lowpass[hilp_fB2]*(1.0-temp)); if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_a0])+highpass[hilp_aL1]; highpass[hilp_aL1] = (inputSampleL*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aL2]; highpass[hilp_aL2] = (inputSampleL*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_a0])+highpass[hilp_aR1]; highpass[hilp_aR1] = (inputSampleR*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aR2]; highpass[hilp_aR2] = (inputSampleR*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_aR1] = highpass[hilp_aR2] = highpass[hilp_aL1] = highpass[hilp_aL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_a0])+lowpass[hilp_aL1]; lowpass[hilp_aL1] = (inputSampleL*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aL2]; lowpass[hilp_aL2] = (inputSampleL*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_a0])+lowpass[hilp_aR1]; lowpass[hilp_aR1] = (inputSampleR*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aR2]; lowpass[hilp_aR2] = (inputSampleR*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_aR1] = lowpass[hilp_aR2] = lowpass[hilp_aL1] = lowpass[hilp_aL2] = 0.0; //first Highpass/Lowpass blocks aliasing before the nonlinearity of ConsoleXBuss and Parametric if (inputSampleL > 1.0) inputSampleL = 1.0; else if (inputSampleL > 0.0) inputSampleL = -expm1((log1p(-inputSampleL) * 0.6180339887498949)); if (inputSampleL < -1.0) inputSampleL = -1.0; else if (inputSampleL < 0.0) inputSampleL = expm1((log1p(inputSampleL) * 0.6180339887498949)); if (inputSampleR > 1.0) inputSampleR = 1.0; else if (inputSampleR > 0.0) inputSampleR = -expm1((log1p(-inputSampleR) * 0.6180339887498949)); if (inputSampleR < -1.0) inputSampleR = -1.0; else if (inputSampleR < 0.0) inputSampleR = expm1((log1p(inputSampleR) * 0.6180339887498949)); if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_c0])+highpass[hilp_cL1]; highpass[hilp_cL1] = (inputSampleL*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cL2]; highpass[hilp_cL2] = (inputSampleL*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_c0])+highpass[hilp_cR1]; highpass[hilp_cR1] = (inputSampleR*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cR2]; highpass[hilp_cR2] = (inputSampleR*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_cR1] = highpass[hilp_cR2] = highpass[hilp_cL1] = highpass[hilp_cL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_c0])+lowpass[hilp_cL1]; lowpass[hilp_cL1] = (inputSampleL*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cL2]; lowpass[hilp_cL2] = (inputSampleL*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_c0])+lowpass[hilp_cR1]; lowpass[hilp_cR1] = (inputSampleR*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cR2]; lowpass[hilp_cR2] = (inputSampleR*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_cR1] = lowpass[hilp_cR2] = lowpass[hilp_cL1] = lowpass[hilp_cL2] = 0.0; //another stage of Highpass/Lowpass before bringing in the parametric bands if (!eqOff) { double trebleFastL = inputSampleL; double outSample = (trebleFastL * highFast[biq_a0]) + highFast[biq_sL1]; highFast[biq_sL1] = (trebleFastL * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sL2]; highFast[biq_sL2] = (trebleFastL * highFast[biq_a2]) - (outSample * highFast[biq_b2]); double midFastL = outSample; trebleFastL -= midFastL; outSample = (midFastL * lowFast[biq_a0]) + lowFast[biq_sL1]; lowFast[biq_sL1] = (midFastL * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sL2]; lowFast[biq_sL2] = (midFastL * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]); double bassFastL = outSample; midFastL -= bassFastL; trebleFastL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain); //first stage of two crossovers is biquad of exactly 1.0 Q highFastLIIR = (highFastLIIR*highCoef) + (trebleFastL*(1.0-highCoef)); midFastL = highFastLIIR; trebleFastL -= midFastL; lowFastLIIR = (lowFastLIIR*lowCoef) + (midFastL*(1.0-lowCoef)); bassFastL = lowFastLIIR; midFastL -= bassFastL; inputSampleL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain); //second stage of two crossovers is the exponential filters //this produces a slightly steeper Butterworth filter very cheaply double trebleFastR = inputSampleR; outSample = (trebleFastR * highFast[biq_a0]) + highFast[biq_sR1]; highFast[biq_sR1] = (trebleFastR * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sR2]; highFast[biq_sR2] = (trebleFastR * highFast[biq_a2]) - (outSample * highFast[biq_b2]); double midFastR = outSample; trebleFastR -= midFastR; outSample = (midFastR * lowFast[biq_a0]) + lowFast[biq_sR1]; lowFast[biq_sR1] = (midFastR * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sR2]; lowFast[biq_sR2] = (midFastR * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]); double bassFastR = outSample; midFastR -= bassFastR; trebleFastR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain); //first stage of two crossovers is biquad of exactly 1.0 Q highFastRIIR = (highFastRIIR*highCoef) + (trebleFastR*(1.0-highCoef)); midFastR = highFastRIIR; trebleFastR -= midFastR; lowFastRIIR = (lowFastRIIR*lowCoef) + (midFastR*(1.0-lowCoef)); bassFastR = lowFastRIIR; midFastR -= bassFastR; inputSampleR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain); //second stage of two crossovers is the exponential filters //this produces a slightly steeper Butterworth filter very cheaply } //SmoothEQ3 if (bezCThresh > 0.0) { inputSampleL *= ((bezCThresh*0.5)+1.0); inputSampleR *= ((bezCThresh*0.5)+1.0); bezCompF[bez_cycle] += bezRez; bezCompF[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * bezRez); if (bezCompF[bez_cycle] > 1.0) { bezCompF[bez_cycle] -= 1.0; bezCompF[bez_C] = bezCompF[bez_B]; bezCompF[bez_B] = bezCompF[bez_A]; bezCompF[bez_A] = bezCompF[bez_Ctrl]; bezCompF[bez_Ctrl] = 0.0; } bezCompS[bez_cycle] += sloRez; bezCompS[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * sloRez); if (bezCompS[bez_cycle] > 1.0) { bezCompS[bez_cycle] -= 1.0; bezCompS[bez_C] = bezCompS[bez_B]; bezCompS[bez_B] = bezCompS[bez_A]; bezCompS[bez_A] = bezCompS[bez_Ctrl]; bezCompS[bez_Ctrl] = 0.0; } double CBF = (bezCompF[bez_C]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_B]*bezCompF[bez_cycle]); double BAF = (bezCompF[bez_B]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_A]*bezCompF[bez_cycle]); double CBAF = (bezCompF[bez_B]+(CBF*(1.0-bezCompF[bez_cycle]))+(BAF*bezCompF[bez_cycle]))*0.5; double CBS = (bezCompS[bez_C]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_B]*bezCompS[bez_cycle]); double BAS = (bezCompS[bez_B]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_A]*bezCompS[bez_cycle]); double CBAS = (bezCompS[bez_B]+(CBS*(1.0-bezCompS[bez_cycle]))+(BAS*bezCompS[bez_cycle]))*0.5; double CBAMax = fmax(CBAS,CBAF); if (CBAMax > 0.0) CBAMax = 1.0/CBAMax; double CBAFade = ((CBAS*-CBAMax)+(CBAF*CBAMax)+1.0)*0.5; inputSampleL *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0)); inputSampleR *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0)); } else {bezCompF[bez_Ctrl] = 0.0; bezCompS[bez_Ctrl] = 0.0;} //Dynamics2 custom version for buss if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_e0])+highpass[hilp_eL1]; highpass[hilp_eL1] = (inputSampleL*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eL2]; highpass[hilp_eL2] = (inputSampleL*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_e0])+highpass[hilp_eR1]; highpass[hilp_eR1] = (inputSampleR*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eR2]; highpass[hilp_eR2] = (inputSampleR*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_eR1] = highpass[hilp_eR2] = highpass[hilp_eL1] = highpass[hilp_eL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_e0])+lowpass[hilp_eL1]; lowpass[hilp_eL1] = (inputSampleL*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eL2]; lowpass[hilp_eL2] = (inputSampleL*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_e0])+lowpass[hilp_eR1]; lowpass[hilp_eR1] = (inputSampleR*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eR2]; lowpass[hilp_eR2] = (inputSampleR*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_eR1] = lowpass[hilp_eR2] = lowpass[hilp_eL1] = lowpass[hilp_eL2] = 0.0; //final Highpass/Lowpass continues to address aliasing //final stacked biquad section is the softest Q for smoothness double gainR = (panA*temp)+(panB*(1.0-temp)); double gainL = 1.57079633-gainR; gainR = sin(gainR); gainL = sin(gainL); double gain = (inTrimA*temp)+(inTrimB*(1.0-temp)); if (gain > 1.0) gain *= gain; if (gain < 1.0) gain = 1.0-pow(1.0-gain,2); gain *= 2.0; inputSampleL = inputSampleL * gainL * gain; inputSampleR = inputSampleR * gainR * gain; //applies pan section, and smoothed fader gain double darkSampleL = inputSampleL; double darkSampleR = inputSampleR; if (avgPos > 31) avgPos = 0; if (spacing > 31) { avg32L[avgPos] = darkSampleL; avg32R[avgPos] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 32; x++) {darkSampleL += avg32L[x]; darkSampleR += avg32R[x];} darkSampleL /= 32.0; darkSampleR /= 32.0; } if (spacing > 15) { avg16L[avgPos%16] = darkSampleL; avg16R[avgPos%16] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 16; x++) {darkSampleL += avg16L[x]; darkSampleR += avg16R[x];} darkSampleL /= 16.0; darkSampleR /= 16.0; } if (spacing > 7) { avg8L[avgPos%8] = darkSampleL; avg8R[avgPos%8] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 8; x++) {darkSampleL += avg8L[x]; darkSampleR += avg8R[x];} darkSampleL /= 8.0; darkSampleR /= 8.0; } if (spacing > 3) { avg4L[avgPos%4] = darkSampleL; avg4R[avgPos%4] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 4; x++) {darkSampleL += avg4L[x]; darkSampleR += avg4R[x];} darkSampleL /= 4.0; darkSampleR /= 4.0; } if (spacing > 1) { avg2L[avgPos%2] = darkSampleL; avg2R[avgPos%2] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 2; x++) {darkSampleL += avg2L[x]; darkSampleR += avg2R[x];} darkSampleL /= 2.0; darkSampleR /= 2.0; } avgPos++; lastSlewL += fabs(lastSlewpleL-inputSampleL); lastSlewpleL = inputSampleL; double avgSlewL = fmin(lastSlewL*lastSlewL*(0.0635-(overallscale*0.0018436)),1.0); lastSlewL = fmax(lastSlewL*0.78,2.39996322972865332223); lastSlewR += fabs(lastSlewpleR-inputSampleR); lastSlewpleR = inputSampleR; double avgSlewR = fmin(lastSlewR*lastSlewR*(0.0635-(overallscale*0.0018436)),1.0); lastSlewR = fmax(lastSlewR*0.78,2.39996322972865332223); //look up Golden Angle, it's cool inputSampleL = (inputSampleL*(1.0-avgSlewL)) + (darkSampleL*avgSlewL); inputSampleR = (inputSampleR*(1.0-avgSlewR)) + (darkSampleR*avgSlewR); inputSampleL = fmin(fmax(inputSampleL,-2.032610446872596),2.032610446872596); long double X = inputSampleL * inputSampleL; long double sat = inputSampleL * X; inputSampleL -= (sat*0.125); sat *= X; inputSampleL += (sat*0.0078125); sat *= X; inputSampleL -= (sat*0.000244140625); sat *= X; inputSampleL += (sat*0.000003814697265625); sat *= X; inputSampleL -= (sat*0.0000000298023223876953125); sat *= X; //purestsaturation: sine, except all the corrections //retain mantissa of a long double increasing power function inputSampleR = fmin(fmax(inputSampleR,-2.032610446872596),2.032610446872596); X = inputSampleR * inputSampleR; sat = inputSampleR * X; inputSampleR -= (sat*0.125); sat *= X; inputSampleR += (sat*0.0078125); sat *= X; inputSampleR -= (sat*0.000244140625); sat *= X; inputSampleR += (sat*0.000003814697265625); sat *= X; inputSampleR -= (sat*0.0000000298023223876953125); sat *= X; //purestsaturation: sine, except all the corrections //retain mantissa of a long double increasing power function //we are leaving it as a clip that will go over 0dB. //it is a softclip so it will give you a more forgiving experience, //but you are meant to not drive the softclip for just level. //begin 32 bit stereo floating point dither int expon; frexpf((float)inputSampleL, &expon); fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5; inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); frexpf((float)inputSampleR, &expon); fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5; inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); //end 32 bit stereo floating point dither *out1 = inputSampleL; *out2 = inputSampleR; in1++; in2++; out1++; out2++; } } void ConsoleHBuss::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) { double* in1 = inputs[0]; double* in2 = inputs[1]; double* out1 = outputs[0]; double* out2 = outputs[1]; VstInt32 inFramesToProcess = sampleFrames; //vst doesn't give us this as a separate variable so we'll make it double overallscale = 1.0; overallscale /= 44100.0; overallscale *= getSampleRate(); int spacing = floor(overallscale*2.0); if (spacing < 2) spacing = 2; if (spacing > 32) spacing = 32; double trebleGain = (HIG-0.5)*2.0; trebleGain = 1.0+(trebleGain*fabs(trebleGain)*fabs(trebleGain)); double midGain = (MID-0.5)*2.0; midGain = 1.0+(midGain*fabs(midGain)*fabs(midGain)); double bassGain = (LOW-0.5)*2.0; bassGain = 1.0+(bassGain*fabs(bassGain)*fabs(bassGain)); //separate from filtering stage, this is amplitude, centered on 1.0 unity gain double highCoef = 0.0; double lowCoef = 0.0; double omega = 0.0; double biqK = 0.0; double norm = 0.0; bool eqOff = (trebleGain == 1.0 && midGain == 1.0 && bassGain == 1.0); //we get to completely bypass EQ if we're truly not using it. The mechanics of it mean that //it cancels out to bit-identical anyhow, but we get to skip the calculation if (!eqOff) { //SmoothEQ3 is how to get 3rd order steepness at very low CPU. //because sample rate varies, you could also vary the crossovers //you can't vary Q because math is simplified to take advantage of //how the accurate Q value for this filter is always exactly 1.0. highFast[biq_freq] = (4000.0/getSampleRate()); omega = 2.0*M_PI*(4000.0/getSampleRate()); //mid-high crossover freq biqK = 2.0 - cos(omega); highCoef = -sqrt(biqK*biqK - 1.0) + biqK; lowFast[biq_freq] = (200.0/getSampleRate()); omega = 2.0*M_PI*(200.0/getSampleRate()); //low-mid crossover freq biqK = 2.0 - cos(omega); lowCoef = -sqrt(biqK*biqK - 1.0) + biqK; //exponential IIR filter as part of an accurate 3rd order Butterworth filter biqK = tan(M_PI * highFast[biq_freq]); norm = 1.0 / (1.0 + biqK + biqK*biqK); highFast[biq_a0] = biqK * biqK * norm; highFast[biq_a1] = 2.0 * highFast[biq_a0]; highFast[biq_a2] = highFast[biq_a0]; highFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm; highFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm; biqK = tan(M_PI * lowFast[biq_freq]); norm = 1.0 / (1.0 + biqK + biqK*biqK); lowFast[biq_a0] = biqK * biqK * norm; lowFast[biq_a1] = 2.0 * lowFast[biq_a0]; lowFast[biq_a2] = lowFast[biq_a0]; lowFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm; lowFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm; //custom biquad setup with Q = 1.0 gets to omit some divides } //SmoothEQ3 double bezCThresh = pow(1.0-THR, 6.0) * 8.0; double bezRez = pow(1.0-THR, 12.360679774997898) / overallscale; double sloRez = pow(1.0-THR,10.0) / overallscale; sloRez = fmin(fmax(sloRez,0.00001),1.0); bezRez = fmin(fmax(bezRez,0.00001),1.0); //Dynamics2 highpass[hilp_freq] = ((pow(HIP,3)*24000.0)+10.0)/getSampleRate(); if (highpass[hilp_freq] > 0.495) highpass[hilp_freq] = 0.495; bool highpassEngage = true; if (HIP == 0.0) highpassEngage = false; lowpass[hilp_freq] = ((pow(LOP,3)*24000.0)+10.0)/getSampleRate(); if (lowpass[hilp_freq] > 0.495) lowpass[hilp_freq] = 0.495; bool lowpassEngage = true; if (LOP == 1.0) lowpassEngage = false; highpass[hilp_aA0] = highpass[hilp_aB0]; highpass[hilp_aA1] = highpass[hilp_aB1]; highpass[hilp_bA1] = highpass[hilp_bB1]; highpass[hilp_bA2] = highpass[hilp_bB2]; highpass[hilp_cA0] = highpass[hilp_cB0]; highpass[hilp_cA1] = highpass[hilp_cB1]; highpass[hilp_dA1] = highpass[hilp_dB1]; highpass[hilp_dA2] = highpass[hilp_dB2]; highpass[hilp_eA0] = highpass[hilp_eB0]; highpass[hilp_eA1] = highpass[hilp_eB1]; highpass[hilp_fA1] = highpass[hilp_fB1]; highpass[hilp_fA2] = highpass[hilp_fB2]; lowpass[hilp_aA0] = lowpass[hilp_aB0]; lowpass[hilp_aA1] = lowpass[hilp_aB1]; lowpass[hilp_bA1] = lowpass[hilp_bB1]; lowpass[hilp_bA2] = lowpass[hilp_bB2]; lowpass[hilp_cA0] = lowpass[hilp_cB0]; lowpass[hilp_cA1] = lowpass[hilp_cB1]; lowpass[hilp_dA1] = lowpass[hilp_dB1]; lowpass[hilp_dA2] = lowpass[hilp_dB2]; lowpass[hilp_eA0] = lowpass[hilp_eB0]; lowpass[hilp_eA1] = lowpass[hilp_eB1]; lowpass[hilp_fA1] = lowpass[hilp_fB1]; lowpass[hilp_fA2] = lowpass[hilp_fB2]; //previous run through the buffer is still in the filter, so we move it //to the A section and now it's the new starting point. //On the buss, highpass and lowpass are isolators meant to be moved, //so they are interpolated where the channels are not biqK = tan(M_PI * highpass[hilp_freq]); //highpass norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK); highpass[hilp_aB0] = norm; highpass[hilp_aB1] = -2.0 * highpass[hilp_aB0]; highpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK); highpass[hilp_cB0] = norm; highpass[hilp_cB1] = -2.0 * highpass[hilp_cB0]; highpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK); highpass[hilp_eB0] = norm; highpass[hilp_eB1] = -2.0 * highpass[hilp_eB0]; highpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm; highpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm; biqK = tan(M_PI * lowpass[hilp_freq]); //lowpass norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK); lowpass[hilp_aB0] = biqK * biqK * norm; lowpass[hilp_aB1] = 2.0 * lowpass[hilp_aB0]; lowpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK); lowpass[hilp_cB0] = biqK * biqK * norm; lowpass[hilp_cB1] = 2.0 * lowpass[hilp_cB0]; lowpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm; norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK); lowpass[hilp_eB0] = biqK * biqK * norm; lowpass[hilp_eB1] = 2.0 * lowpass[hilp_eB0]; lowpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm; lowpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm; if (highpass[hilp_aA0] == 0.0) { // if we have just started, start directly with raw info highpass[hilp_aA0] = highpass[hilp_aB0]; highpass[hilp_aA1] = highpass[hilp_aB1]; highpass[hilp_bA1] = highpass[hilp_bB1]; highpass[hilp_bA2] = highpass[hilp_bB2]; highpass[hilp_cA0] = highpass[hilp_cB0]; highpass[hilp_cA1] = highpass[hilp_cB1]; highpass[hilp_dA1] = highpass[hilp_dB1]; highpass[hilp_dA2] = highpass[hilp_dB2]; highpass[hilp_eA0] = highpass[hilp_eB0]; highpass[hilp_eA1] = highpass[hilp_eB1]; highpass[hilp_fA1] = highpass[hilp_fB1]; highpass[hilp_fA2] = highpass[hilp_fB2]; lowpass[hilp_aA0] = lowpass[hilp_aB0]; lowpass[hilp_aA1] = lowpass[hilp_aB1]; lowpass[hilp_bA1] = lowpass[hilp_bB1]; lowpass[hilp_bA2] = lowpass[hilp_bB2]; lowpass[hilp_cA0] = lowpass[hilp_cB0]; lowpass[hilp_cA1] = lowpass[hilp_cB1]; lowpass[hilp_dA1] = lowpass[hilp_dB1]; lowpass[hilp_dA2] = lowpass[hilp_dB2]; lowpass[hilp_eA0] = lowpass[hilp_eB0]; lowpass[hilp_eA1] = lowpass[hilp_eB1]; lowpass[hilp_fA1] = lowpass[hilp_fB1]; lowpass[hilp_fA2] = lowpass[hilp_fB2]; } panA = panB; panB = PAN*1.57079633; inTrimA = inTrimB; inTrimB = FAD*2.0; //Console 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; const double temp = (double)sampleFrames/inFramesToProcess; highpass[hilp_a0] = (highpass[hilp_aA0]*temp)+(highpass[hilp_aB0]*(1.0-temp)); highpass[hilp_a1] = (highpass[hilp_aA1]*temp)+(highpass[hilp_aB1]*(1.0-temp)); highpass[hilp_b1] = (highpass[hilp_bA1]*temp)+(highpass[hilp_bB1]*(1.0-temp)); highpass[hilp_b2] = (highpass[hilp_bA2]*temp)+(highpass[hilp_bB2]*(1.0-temp)); highpass[hilp_c0] = (highpass[hilp_cA0]*temp)+(highpass[hilp_cB0]*(1.0-temp)); highpass[hilp_c1] = (highpass[hilp_cA1]*temp)+(highpass[hilp_cB1]*(1.0-temp)); highpass[hilp_d1] = (highpass[hilp_dA1]*temp)+(highpass[hilp_dB1]*(1.0-temp)); highpass[hilp_d2] = (highpass[hilp_dA2]*temp)+(highpass[hilp_dB2]*(1.0-temp)); highpass[hilp_e0] = (highpass[hilp_eA0]*temp)+(highpass[hilp_eB0]*(1.0-temp)); highpass[hilp_e1] = (highpass[hilp_eA1]*temp)+(highpass[hilp_eB1]*(1.0-temp)); highpass[hilp_f1] = (highpass[hilp_fA1]*temp)+(highpass[hilp_fB1]*(1.0-temp)); highpass[hilp_f2] = (highpass[hilp_fA2]*temp)+(highpass[hilp_fB2]*(1.0-temp)); lowpass[hilp_a0] = (lowpass[hilp_aA0]*temp)+(lowpass[hilp_aB0]*(1.0-temp)); lowpass[hilp_a1] = (lowpass[hilp_aA1]*temp)+(lowpass[hilp_aB1]*(1.0-temp)); lowpass[hilp_b1] = (lowpass[hilp_bA1]*temp)+(lowpass[hilp_bB1]*(1.0-temp)); lowpass[hilp_b2] = (lowpass[hilp_bA2]*temp)+(lowpass[hilp_bB2]*(1.0-temp)); lowpass[hilp_c0] = (lowpass[hilp_cA0]*temp)+(lowpass[hilp_cB0]*(1.0-temp)); lowpass[hilp_c1] = (lowpass[hilp_cA1]*temp)+(lowpass[hilp_cB1]*(1.0-temp)); lowpass[hilp_d1] = (lowpass[hilp_dA1]*temp)+(lowpass[hilp_dB1]*(1.0-temp)); lowpass[hilp_d2] = (lowpass[hilp_dA2]*temp)+(lowpass[hilp_dB2]*(1.0-temp)); lowpass[hilp_e0] = (lowpass[hilp_eA0]*temp)+(lowpass[hilp_eB0]*(1.0-temp)); lowpass[hilp_e1] = (lowpass[hilp_eA1]*temp)+(lowpass[hilp_eB1]*(1.0-temp)); lowpass[hilp_f1] = (lowpass[hilp_fA1]*temp)+(lowpass[hilp_fB1]*(1.0-temp)); lowpass[hilp_f2] = (lowpass[hilp_fA2]*temp)+(lowpass[hilp_fB2]*(1.0-temp)); if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_a0])+highpass[hilp_aL1]; highpass[hilp_aL1] = (inputSampleL*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aL2]; highpass[hilp_aL2] = (inputSampleL*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_a0])+highpass[hilp_aR1]; highpass[hilp_aR1] = (inputSampleR*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aR2]; highpass[hilp_aR2] = (inputSampleR*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_aR1] = highpass[hilp_aR2] = highpass[hilp_aL1] = highpass[hilp_aL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_a0])+lowpass[hilp_aL1]; lowpass[hilp_aL1] = (inputSampleL*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aL2]; lowpass[hilp_aL2] = (inputSampleL*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_a0])+lowpass[hilp_aR1]; lowpass[hilp_aR1] = (inputSampleR*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aR2]; lowpass[hilp_aR2] = (inputSampleR*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_aR1] = lowpass[hilp_aR2] = lowpass[hilp_aL1] = lowpass[hilp_aL2] = 0.0; //first Highpass/Lowpass blocks aliasing before the nonlinearity of ConsoleXBuss and Parametric if (inputSampleL > 1.0) inputSampleL = 1.0; else if (inputSampleL > 0.0) inputSampleL = -expm1((log1p(-inputSampleL) * 0.6180339887498949)); if (inputSampleL < -1.0) inputSampleL = -1.0; else if (inputSampleL < 0.0) inputSampleL = expm1((log1p(inputSampleL) * 0.6180339887498949)); if (inputSampleR > 1.0) inputSampleR = 1.0; else if (inputSampleR > 0.0) inputSampleR = -expm1((log1p(-inputSampleR) * 0.6180339887498949)); if (inputSampleR < -1.0) inputSampleR = -1.0; else if (inputSampleR < 0.0) inputSampleR = expm1((log1p(inputSampleR) * 0.6180339887498949)); if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_c0])+highpass[hilp_cL1]; highpass[hilp_cL1] = (inputSampleL*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cL2]; highpass[hilp_cL2] = (inputSampleL*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_c0])+highpass[hilp_cR1]; highpass[hilp_cR1] = (inputSampleR*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cR2]; highpass[hilp_cR2] = (inputSampleR*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_cR1] = highpass[hilp_cR2] = highpass[hilp_cL1] = highpass[hilp_cL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_c0])+lowpass[hilp_cL1]; lowpass[hilp_cL1] = (inputSampleL*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cL2]; lowpass[hilp_cL2] = (inputSampleL*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_c0])+lowpass[hilp_cR1]; lowpass[hilp_cR1] = (inputSampleR*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cR2]; lowpass[hilp_cR2] = (inputSampleR*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_cR1] = lowpass[hilp_cR2] = lowpass[hilp_cL1] = lowpass[hilp_cL2] = 0.0; //another stage of Highpass/Lowpass before bringing in the parametric bands if (!eqOff) { double trebleFastL = inputSampleL; double outSample = (trebleFastL * highFast[biq_a0]) + highFast[biq_sL1]; highFast[biq_sL1] = (trebleFastL * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sL2]; highFast[biq_sL2] = (trebleFastL * highFast[biq_a2]) - (outSample * highFast[biq_b2]); double midFastL = outSample; trebleFastL -= midFastL; outSample = (midFastL * lowFast[biq_a0]) + lowFast[biq_sL1]; lowFast[biq_sL1] = (midFastL * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sL2]; lowFast[biq_sL2] = (midFastL * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]); double bassFastL = outSample; midFastL -= bassFastL; trebleFastL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain); //first stage of two crossovers is biquad of exactly 1.0 Q highFastLIIR = (highFastLIIR*highCoef) + (trebleFastL*(1.0-highCoef)); midFastL = highFastLIIR; trebleFastL -= midFastL; lowFastLIIR = (lowFastLIIR*lowCoef) + (midFastL*(1.0-lowCoef)); bassFastL = lowFastLIIR; midFastL -= bassFastL; inputSampleL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain); //second stage of two crossovers is the exponential filters //this produces a slightly steeper Butterworth filter very cheaply double trebleFastR = inputSampleR; outSample = (trebleFastR * highFast[biq_a0]) + highFast[biq_sR1]; highFast[biq_sR1] = (trebleFastR * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sR2]; highFast[biq_sR2] = (trebleFastR * highFast[biq_a2]) - (outSample * highFast[biq_b2]); double midFastR = outSample; trebleFastR -= midFastR; outSample = (midFastR * lowFast[biq_a0]) + lowFast[biq_sR1]; lowFast[biq_sR1] = (midFastR * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sR2]; lowFast[biq_sR2] = (midFastR * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]); double bassFastR = outSample; midFastR -= bassFastR; trebleFastR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain); //first stage of two crossovers is biquad of exactly 1.0 Q highFastRIIR = (highFastRIIR*highCoef) + (trebleFastR*(1.0-highCoef)); midFastR = highFastRIIR; trebleFastR -= midFastR; lowFastRIIR = (lowFastRIIR*lowCoef) + (midFastR*(1.0-lowCoef)); bassFastR = lowFastRIIR; midFastR -= bassFastR; inputSampleR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain); //second stage of two crossovers is the exponential filters //this produces a slightly steeper Butterworth filter very cheaply } //SmoothEQ3 if (bezCThresh > 0.0) { inputSampleL *= ((bezCThresh*0.5)+1.0); inputSampleR *= ((bezCThresh*0.5)+1.0); bezCompF[bez_cycle] += bezRez; bezCompF[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * bezRez); if (bezCompF[bez_cycle] > 1.0) { bezCompF[bez_cycle] -= 1.0; bezCompF[bez_C] = bezCompF[bez_B]; bezCompF[bez_B] = bezCompF[bez_A]; bezCompF[bez_A] = bezCompF[bez_Ctrl]; bezCompF[bez_Ctrl] = 0.0; } bezCompS[bez_cycle] += sloRez; bezCompS[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * sloRez); if (bezCompS[bez_cycle] > 1.0) { bezCompS[bez_cycle] -= 1.0; bezCompS[bez_C] = bezCompS[bez_B]; bezCompS[bez_B] = bezCompS[bez_A]; bezCompS[bez_A] = bezCompS[bez_Ctrl]; bezCompS[bez_Ctrl] = 0.0; } double CBF = (bezCompF[bez_C]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_B]*bezCompF[bez_cycle]); double BAF = (bezCompF[bez_B]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_A]*bezCompF[bez_cycle]); double CBAF = (bezCompF[bez_B]+(CBF*(1.0-bezCompF[bez_cycle]))+(BAF*bezCompF[bez_cycle]))*0.5; double CBS = (bezCompS[bez_C]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_B]*bezCompS[bez_cycle]); double BAS = (bezCompS[bez_B]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_A]*bezCompS[bez_cycle]); double CBAS = (bezCompS[bez_B]+(CBS*(1.0-bezCompS[bez_cycle]))+(BAS*bezCompS[bez_cycle]))*0.5; double CBAMax = fmax(CBAS,CBAF); if (CBAMax > 0.0) CBAMax = 1.0/CBAMax; double CBAFade = ((CBAS*-CBAMax)+(CBAF*CBAMax)+1.0)*0.5; inputSampleL *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0)); inputSampleR *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0)); } else {bezCompF[bez_Ctrl] = 0.0; bezCompS[bez_Ctrl] = 0.0;} //Dynamics2 custom version for buss if (highpassEngage) { //distributed Highpass highpass[hilp_temp] = (inputSampleL*highpass[hilp_e0])+highpass[hilp_eL1]; highpass[hilp_eL1] = (inputSampleL*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eL2]; highpass[hilp_eL2] = (inputSampleL*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleL = highpass[hilp_temp]; highpass[hilp_temp] = (inputSampleR*highpass[hilp_e0])+highpass[hilp_eR1]; highpass[hilp_eR1] = (inputSampleR*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eR2]; highpass[hilp_eR2] = (inputSampleR*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleR = highpass[hilp_temp]; } else highpass[hilp_eR1] = highpass[hilp_eR2] = highpass[hilp_eL1] = highpass[hilp_eL2] = 0.0; if (lowpassEngage) { //distributed Lowpass lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_e0])+lowpass[hilp_eL1]; lowpass[hilp_eL1] = (inputSampleL*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eL2]; lowpass[hilp_eL2] = (inputSampleL*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleL = lowpass[hilp_temp]; lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_e0])+lowpass[hilp_eR1]; lowpass[hilp_eR1] = (inputSampleR*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eR2]; lowpass[hilp_eR2] = (inputSampleR*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleR = lowpass[hilp_temp]; } else lowpass[hilp_eR1] = lowpass[hilp_eR2] = lowpass[hilp_eL1] = lowpass[hilp_eL2] = 0.0; //final Highpass/Lowpass continues to address aliasing //final stacked biquad section is the softest Q for smoothness double gainR = (panA*temp)+(panB*(1.0-temp)); double gainL = 1.57079633-gainR; gainR = sin(gainR); gainL = sin(gainL); double gain = (inTrimA*temp)+(inTrimB*(1.0-temp)); if (gain > 1.0) gain *= gain; if (gain < 1.0) gain = 1.0-pow(1.0-gain,2); gain *= 2.0; inputSampleL = inputSampleL * gainL * gain; inputSampleR = inputSampleR * gainR * gain; //applies pan section, and smoothed fader gain double darkSampleL = inputSampleL; double darkSampleR = inputSampleR; if (avgPos > 31) avgPos = 0; if (spacing > 31) { avg32L[avgPos] = darkSampleL; avg32R[avgPos] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 32; x++) {darkSampleL += avg32L[x]; darkSampleR += avg32R[x];} darkSampleL /= 32.0; darkSampleR /= 32.0; } if (spacing > 15) { avg16L[avgPos%16] = darkSampleL; avg16R[avgPos%16] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 16; x++) {darkSampleL += avg16L[x]; darkSampleR += avg16R[x];} darkSampleL /= 16.0; darkSampleR /= 16.0; } if (spacing > 7) { avg8L[avgPos%8] = darkSampleL; avg8R[avgPos%8] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 8; x++) {darkSampleL += avg8L[x]; darkSampleR += avg8R[x];} darkSampleL /= 8.0; darkSampleR /= 8.0; } if (spacing > 3) { avg4L[avgPos%4] = darkSampleL; avg4R[avgPos%4] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 4; x++) {darkSampleL += avg4L[x]; darkSampleR += avg4R[x];} darkSampleL /= 4.0; darkSampleR /= 4.0; } if (spacing > 1) { avg2L[avgPos%2] = darkSampleL; avg2R[avgPos%2] = darkSampleR; darkSampleL = 0.0; darkSampleR = 0.0; for (int x = 0; x < 2; x++) {darkSampleL += avg2L[x]; darkSampleR += avg2R[x];} darkSampleL /= 2.0; darkSampleR /= 2.0; } avgPos++; lastSlewL += fabs(lastSlewpleL-inputSampleL); lastSlewpleL = inputSampleL; double avgSlewL = fmin(lastSlewL*lastSlewL*(0.0635-(overallscale*0.0018436)),1.0); lastSlewL = fmax(lastSlewL*0.78,2.39996322972865332223); lastSlewR += fabs(lastSlewpleR-inputSampleR); lastSlewpleR = inputSampleR; double avgSlewR = fmin(lastSlewR*lastSlewR*(0.0635-(overallscale*0.0018436)),1.0); lastSlewR = fmax(lastSlewR*0.78,2.39996322972865332223); //look up Golden Angle, it's cool inputSampleL = (inputSampleL*(1.0-avgSlewL)) + (darkSampleL*avgSlewL); inputSampleR = (inputSampleR*(1.0-avgSlewR)) + (darkSampleR*avgSlewR); inputSampleL = fmin(fmax(inputSampleL,-2.032610446872596),2.032610446872596); long double X = inputSampleL * inputSampleL; long double sat = inputSampleL * X; inputSampleL -= (sat*0.125); sat *= X; inputSampleL += (sat*0.0078125); sat *= X; inputSampleL -= (sat*0.000244140625); sat *= X; inputSampleL += (sat*0.000003814697265625); sat *= X; inputSampleL -= (sat*0.0000000298023223876953125); sat *= X; //purestsaturation: sine, except all the corrections //retain mantissa of a long double increasing power function inputSampleR = fmin(fmax(inputSampleR,-2.032610446872596),2.032610446872596); X = inputSampleR * inputSampleR; sat = inputSampleR * X; inputSampleR -= (sat*0.125); sat *= X; inputSampleR += (sat*0.0078125); sat *= X; inputSampleR -= (sat*0.000244140625); sat *= X; inputSampleR += (sat*0.000003814697265625); sat *= X; inputSampleR -= (sat*0.0000000298023223876953125); sat *= X; //purestsaturation: sine, except all the corrections //retain mantissa of a long double increasing power function //we are leaving it as a clip that will go over 0dB. //it is a softclip so it will give you a more forgiving experience, //but you are meant to not drive the softclip for just level. //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++; } }