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Remove dithers

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This commit is contained in:
Roland Rabien 2023-10-20 18:49:05 -07:00
commit a376041ab8
14 changed files with 356 additions and 78 deletions
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17
plugin/Source/FX/DeRez2Proc.cpp
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@ -32,8 +32,8 @@ void DeRez2::processReplacing(float **inputs, float **outputs, VstInt32 sampleFr
{
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;
//if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
//if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
@ -167,7 +167,7 @@ void DeRez2::processReplacing(float **inputs, float **outputs, VstInt32 sampleFr
lastSampleL = drySampleL;
lastSampleR = drySampleR;
/*
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
@ -176,7 +176,8 @@ void DeRez2::processReplacing(float **inputs, float **outputs, VstInt32 sampleFr
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;
@ -210,8 +211,8 @@ void DeRez2::processDoubleReplacing(double **inputs, double **outputs, VstInt32
{
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;
//if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
//if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
double drySampleL = inputSampleL;
double drySampleR = inputSampleR;
@ -347,6 +348,7 @@ void DeRez2::processDoubleReplacing(double **inputs, double **outputs, VstInt32
lastSampleR = drySampleR;
//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));
@ -354,7 +356,8 @@ void DeRez2::processDoubleReplacing(double **inputs, double **outputs, VstInt32
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;