diff options
Diffstat (limited to 'plugins/WinVST/TapeDust/TapeDustProc.cpp')
| -rwxr-xr-x | plugins/WinVST/TapeDust/TapeDustProc.cpp | 64 |
1 files changed, 20 insertions, 44 deletions
diff --git a/plugins/WinVST/TapeDust/TapeDustProc.cpp b/plugins/WinVST/TapeDust/TapeDustProc.cpp index 3d6588d..429a366 100755 --- a/plugins/WinVST/TapeDust/TapeDustProc.cpp +++ b/plugins/WinVST/TapeDust/TapeDustProc.cpp @@ -13,9 +13,6 @@ void TapeDust::processReplacing(float **inputs, float **outputs, VstInt32 sample float* in2 = inputs[1]; float* out1 = outputs[0]; float* out2 = outputs[1]; - float fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -93,6 +90,7 @@ void TapeDust::processReplacing(float **inputs, float **outputs, VstInt32 sample inputSampleL = -inputSampleL; inputSampleR = -inputSampleR; } + fpFlip = !fpFlip; for(int count = 0; count < 9; count++) { if (gainL > 1.0) { @@ -120,25 +118,14 @@ void TapeDust::processReplacing(float **inputs, float **outputs, VstInt32 sample inputSampleR = (inputSampleR * wet) + (drySampleR * dry); } - //noise shaping to 32-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //end noise shaping on 32 bit output + //stereo 32 bit dither, made small and tidy. + int expon; frexpf((float)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexpf((float)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 32 bit dither *out1 = inputSampleL; *out2 = inputSampleR; @@ -156,9 +143,6 @@ void TapeDust::processDoubleReplacing(double **inputs, double **outputs, VstInt3 double* in2 = inputs[1]; double* out1 = outputs[0]; double* out2 = outputs[1]; - double fpTemp; //this is different from singlereplacing - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -236,6 +220,7 @@ void TapeDust::processDoubleReplacing(double **inputs, double **outputs, VstInt3 inputSampleL = -inputSampleL; inputSampleR = -inputSampleR; } + fpFlip = !fpFlip; for(int count = 0; count < 9; count++) { if (gainL > 1.0) { @@ -263,25 +248,16 @@ void TapeDust::processDoubleReplacing(double **inputs, double **outputs, VstInt3 inputSampleR = (inputSampleR * wet) + (drySampleR * dry); } - //noise shaping to 64-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //end noise shaping on 64 bit output + //stereo 64 bit dither, made small and tidy. + int expon; frexp((double)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexp((double)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 64 bit dither *out1 = inputSampleL; *out2 = inputSampleR; |