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Diffstat (limited to 'plugins/MacVST/DeHiss/source/DeHissProc.cpp')
| -rwxr-xr-x | plugins/MacVST/DeHiss/source/DeHissProc.cpp | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/plugins/MacVST/DeHiss/source/DeHissProc.cpp b/plugins/MacVST/DeHiss/source/DeHissProc.cpp new file mode 100755 index 0000000..405566e --- /dev/null +++ b/plugins/MacVST/DeHiss/source/DeHissProc.cpp @@ -0,0 +1,270 @@ +/* ======================================== + * DeHiss - DeHiss.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __DeHiss_H +#include "DeHiss.h" +#endif + +void DeHiss::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + double meanAL; + double meanBL; + double meanOutL = 0; + double meanLastL; + double averageL[5]; + + double meanAR; + double meanBR; + double meanOutR = 0; + double meanLastR; + double averageR[5]; + + double threshold = pow(A,9); + double wet = B; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37; + if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + //begin L + storedL[1] = storedL[0]; + storedL[0] = inputSampleL; + diffL[5] = diffL[4]; + diffL[4] = diffL[3]; + diffL[3] = diffL[2]; + diffL[2] = diffL[1]; + diffL[1] = diffL[0]; + diffL[0] = storedL[0] - storedL[1]; + + averageL[4] = (diffL[0] + diffL[1] + diffL[2] + diffL[3] + diffL[4] + diffL[5])/6.0; + averageL[3] = (diffL[0] + diffL[1] + diffL[2] + diffL[3] + diffL[4])/5.0; + averageL[2] = (diffL[0] + diffL[1] + diffL[2] + diffL[3])/4.0; + averageL[1] = (diffL[0] + diffL[1] + diffL[2])/3.0; + averageL[0] = (diffL[0] + diffL[1])/2.0; + + meanAL = diffL[0]; + meanBL = diffL[0]; + if (fabs(averageL[4]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[4];} + if (fabs(averageL[3]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[3];} + if (fabs(averageL[2]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[2];} + if (fabs(averageL[1]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[1];} + if (fabs(averageL[0]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[0];} + meanLastL = meanOutL; + meanOutL = ((meanAL+meanBL)/2.0); + + if (rawL > 0) rawL -= 0.001; + if (fabs(inputSampleL) > threshold) {gateL = 1.0; rawL = 2.0;} + else {gateL = (gateL * 0.999); if (threshold > 0) gateL += ((fabs(inputSampleL)/threshold) * 0.001);} + + if ((fabs(meanOutL) > threshold) || (fabs(meanLastL) > threshold)){} + else storedL[0] = storedL[1] + (meanOutL * gateL); + + if (rawL < 1) inputSampleL = (inputSampleL * rawL) + (storedL[0] * (1-rawL)); + //end L + + //begin R + storedR[1] = storedR[0]; + storedR[0] = inputSampleR; + diffR[5] = diffR[4]; + diffR[4] = diffR[3]; + diffR[3] = diffR[2]; + diffR[2] = diffR[1]; + diffR[1] = diffR[0]; + diffR[0] = storedR[0] - storedR[1]; + + averageR[4] = (diffR[0] + diffR[1] + diffR[2] + diffR[3] + diffR[4] + diffR[5])/6.0; + averageR[3] = (diffR[0] + diffR[1] + diffR[2] + diffR[3] + diffR[4])/5.0; + averageR[2] = (diffR[0] + diffR[1] + diffR[2] + diffR[3])/4.0; + averageR[1] = (diffR[0] + diffR[1] + diffR[2])/3.0; + averageR[0] = (diffR[0] + diffR[1])/2.0; + + meanAR = diffR[0]; + meanBR = diffR[0]; + if (fabs(averageR[4]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[4];} + if (fabs(averageR[3]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[3];} + if (fabs(averageR[2]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[2];} + if (fabs(averageR[1]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[1];} + if (fabs(averageR[0]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[0];} + meanLastR = meanOutR; + meanOutR = ((meanAR+meanBR)/2.0); + + if (rawR > 0) rawR -= 0.001; + if (fabs(inputSampleR) > threshold) {gateR = 1.0; rawR = 2.0;} + else {gateR = (gateR * 0.999); if (threshold > 0) gateR += ((fabs(inputSampleR)/threshold) * 0.001);} + + if ((fabs(meanOutR) > threshold) || (fabs(meanLastR) > threshold)){} + else storedR[0] = storedR[1] + (meanOutR * gateR); + + if (rawR < 1) inputSampleR = (inputSampleR * rawR) + (storedR[0] * (1-rawR)); + //end R + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet)); + inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet)); + } + + //begin 32 bit stereo floating point dither + int expon; frexpf((float)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + frexpf((float)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-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 DeHiss::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + double meanAL; + double meanBL; + double meanOutL = 0; + double meanLastL; + double averageL[5]; + + double meanAR; + double meanBR; + double meanOutR = 0; + double meanLastR; + double averageR[5]; + + double threshold = pow(A,9); + double wet = B; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpd * 1.18e-43; + if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpd * 1.18e-43; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + //begin L + storedL[1] = storedL[0]; + storedL[0] = inputSampleL; + diffL[5] = diffL[4]; + diffL[4] = diffL[3]; + diffL[3] = diffL[2]; + diffL[2] = diffL[1]; + diffL[1] = diffL[0]; + diffL[0] = storedL[0] - storedL[1]; + + averageL[4] = (diffL[0] + diffL[1] + diffL[2] + diffL[3] + diffL[4] + diffL[5])/6.0; + averageL[3] = (diffL[0] + diffL[1] + diffL[2] + diffL[3] + diffL[4])/5.0; + averageL[2] = (diffL[0] + diffL[1] + diffL[2] + diffL[3])/4.0; + averageL[1] = (diffL[0] + diffL[1] + diffL[2])/3.0; + averageL[0] = (diffL[0] + diffL[1])/2.0; + + meanAL = diffL[0]; + meanBL = diffL[0]; + if (fabs(averageL[4]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[4];} + if (fabs(averageL[3]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[3];} + if (fabs(averageL[2]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[2];} + if (fabs(averageL[1]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[1];} + if (fabs(averageL[0]) < fabs(meanBL)) {meanAL = meanBL; meanBL = averageL[0];} + meanLastL = meanOutL; + meanOutL = ((meanAL+meanBL)/2.0); + + if (rawL > 0) rawL -= 0.001; + if (fabs(inputSampleL) > threshold) {gateL = 1.0; rawL = 2.0;} + else {gateL = (gateL * 0.999); if (threshold > 0) gateL += ((fabs(inputSampleL)/threshold) * 0.001);} + + if ((fabs(meanOutL) > threshold) || (fabs(meanLastL) > threshold)){} + else storedL[0] = storedL[1] + (meanOutL * gateL); + + if (rawL < 1) inputSampleL = (inputSampleL * rawL) + (storedL[0] * (1-rawL)); + //end L + + //begin R + storedR[1] = storedR[0]; + storedR[0] = inputSampleR; + diffR[5] = diffR[4]; + diffR[4] = diffR[3]; + diffR[3] = diffR[2]; + diffR[2] = diffR[1]; + diffR[1] = diffR[0]; + diffR[0] = storedR[0] - storedR[1]; + + averageR[4] = (diffR[0] + diffR[1] + diffR[2] + diffR[3] + diffR[4] + diffR[5])/6.0; + averageR[3] = (diffR[0] + diffR[1] + diffR[2] + diffR[3] + diffR[4])/5.0; + averageR[2] = (diffR[0] + diffR[1] + diffR[2] + diffR[3])/4.0; + averageR[1] = (diffR[0] + diffR[1] + diffR[2])/3.0; + averageR[0] = (diffR[0] + diffR[1])/2.0; + + meanAR = diffR[0]; + meanBR = diffR[0]; + if (fabs(averageR[4]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[4];} + if (fabs(averageR[3]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[3];} + if (fabs(averageR[2]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[2];} + if (fabs(averageR[1]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[1];} + if (fabs(averageR[0]) < fabs(meanBR)) {meanAR = meanBR; meanBR = averageR[0];} + meanLastR = meanOutR; + meanOutR = ((meanAR+meanBR)/2.0); + + if (rawR > 0) rawR -= 0.001; + if (fabs(inputSampleR) > threshold) {gateR = 1.0; rawR = 2.0;} + else {gateR = (gateR * 0.999); if (threshold > 0) gateR += ((fabs(inputSampleR)/threshold) * 0.001);} + + if ((fabs(meanOutR) > threshold) || (fabs(meanLastR) > threshold)){} + else storedR[0] = storedR[1] + (meanOutR * gateR); + + if (rawR < 1) inputSampleR = (inputSampleR * rawR) + (storedR[0] * (1-rawR)); + //end R + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet)); + inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet)); + } + + //begin 64 bit stereo floating point dither + int expon; frexp((double)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + frexp((double)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-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++; + } +} |