diff options
Diffstat (limited to 'plugins/MacAU/SurgeTide/SurgeTide.cpp')
| -rwxr-xr-x | plugins/MacAU/SurgeTide/SurgeTide.cpp | 42 |
1 files changed, 11 insertions, 31 deletions
diff --git a/plugins/MacAU/SurgeTide/SurgeTide.cpp b/plugins/MacAU/SurgeTide/SurgeTide.cpp index 2a2fe42..3a415f2 100755 --- a/plugins/MacAU/SurgeTide/SurgeTide.cpp +++ b/plugins/MacAU/SurgeTide/SurgeTide.cpp @@ -188,11 +188,8 @@ ComponentResult SurgeTide::Initialize() //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult SurgeTide::Reset(AudioUnitScope inScope, AudioUnitElement inElement) { - fpNShapeAL = 0.0; - fpNShapeBL = 0.0; - fpNShapeAR = 0.0; - fpNShapeBR = 0.0; - flip = true; + fpNShapeL = 0.0; + fpNShapeR = 0.0; chaseA = 0.0; chaseB = 0.0; chaseC = 0.0; @@ -215,11 +212,7 @@ OSStatus SurgeTide::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFla Float64 overallscale = 1.0; overallscale /= 44100.0; overallscale *= GetSampleRate(); - - Float32 fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; - + long double inputSampleL; long double inputSampleR; long double drySampleL; @@ -309,27 +302,14 @@ OSStatus SurgeTide::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFla inputSampleR = drySampleR - (inputSampleR * intensity); inputSampleR = (drySampleR * dry) + (inputSampleR * wet); - //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((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; |