diff options
Diffstat (limited to 'plugins/MacVST/Pressure4/source/Pressure4Proc.cpp')
| -rwxr-xr-x | plugins/MacVST/Pressure4/source/Pressure4Proc.cpp | 66 |
1 files changed, 18 insertions, 48 deletions
diff --git a/plugins/MacVST/Pressure4/source/Pressure4Proc.cpp b/plugins/MacVST/Pressure4/source/Pressure4Proc.cpp index 02b8a78..7e285df 100755 --- a/plugins/MacVST/Pressure4/source/Pressure4Proc.cpp +++ b/plugins/MacVST/Pressure4/source/Pressure4Proc.cpp @@ -43,9 +43,6 @@ void Pressure4::processReplacing(float **inputs, float **outputs, VstInt32 sampl unmewiness = 1.0-mewiness; } // µ µ µ µ µ µ µ µ µ µ µ µ is the kitten song o/~ - float fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -195,27 +192,14 @@ void Pressure4::processReplacing(float **inputs, float **outputs, VstInt32 sampl else {inputSampleR = -bridgerectifier;} //second stage of overdrive to prevent overs and allow bloody loud extremeness - //noise shaping to 32-bit floating point - if (flip) { - fpTemp = inputSampleL; - fpNShapeAL = (fpNShapeAL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeAL; - - fpTemp = inputSampleR; - fpNShapeAR = (fpNShapeAR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeAR; - } - else { - fpTemp = inputSampleL; - fpNShapeBL = (fpNShapeBL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeBL; - - fpTemp = inputSampleR; - fpNShapeBR = (fpNShapeBR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeBR; - } - flip = !flip; - //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 *outputL = inputSampleL; *outputR = inputSampleR; @@ -263,9 +247,6 @@ void Pressure4::processDoubleReplacing(double **inputs, double **outputs, VstInt unmewiness = 1.0-mewiness; } // µ µ µ µ µ µ µ µ µ µ µ µ is the kitten song o/~ - 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; @@ -416,27 +397,16 @@ void Pressure4::processDoubleReplacing(double **inputs, double **outputs, VstInt else {inputSampleR = -bridgerectifier;} //second stage of overdrive to prevent overs and allow bloody loud extremeness - //noise shaping to 32-bit floating point - if (flip) { - fpTemp = inputSampleL; - fpNShapeAL = (fpNShapeAL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeAL; - - fpTemp = inputSampleR; - fpNShapeAR = (fpNShapeAR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeAR; - } - else { - fpTemp = inputSampleL; - fpNShapeBL = (fpNShapeBL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeBL; - - fpTemp = inputSampleR; - fpNShapeBR = (fpNShapeBR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeBR; - } - flip = !flip; - //end noise shaping on 32 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 *outputL = inputSampleL; *outputR = inputSampleR; |