diff options
Diffstat (limited to 'plugins/MacAU/Pyewacket/Pyewacket.cpp')
| -rwxr-xr-x | plugins/MacAU/Pyewacket/Pyewacket.cpp | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/plugins/MacAU/Pyewacket/Pyewacket.cpp b/plugins/MacAU/Pyewacket/Pyewacket.cpp index f80a48b..bb8583b 100755 --- a/plugins/MacAU/Pyewacket/Pyewacket.cpp +++ b/plugins/MacAU/Pyewacket/Pyewacket.cpp @@ -189,11 +189,8 @@ ComponentResult Pyewacket::Initialize() //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult Pyewacket::Reset(AudioUnitScope inScope, AudioUnitElement inElement) { - fpNShapeAL = 0.0; - fpNShapeBL = 0.0; - fpNShapeAR = 0.0; - fpNShapeBR = 0.0; - fpFlip = true; + fpNShapeL = 0.0; + fpNShapeR = 0.0; chase = 1.0; lastrectifierL = 0.0; lastrectifierR = 0.0; @@ -218,7 +215,6 @@ OSStatus Pyewacket::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFla overallscale *= GetSampleRate(); if (overallscale < 0.1) overallscale = 1.0; //insanity check - Float32 fpTemp; long double fpOld = 0.618033988749894848204586; //golden ratio! long double fpNew = 1.0 - fpOld; long double inputSampleL; @@ -336,27 +332,14 @@ OSStatus Pyewacket::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFla inputSampleR *= outputGain; } - //noise shaping to 32-bit floating point - if (fpFlip) { - 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; - } - fpFlip = !fpFlip; - //end noise shaping on 32 bit output + //stereo 32 bit dither, made small and tidy. + int expon; frexpf((Float32)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexpf((Float32)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; |