diff options
Diffstat (limited to 'plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp')
| -rwxr-xr-x | plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp b/plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp index 4c11ff3..d91e997 100755 --- a/plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp +++ b/plugins/MacAU/NonlinearSpace/NonlinearSpace.cpp @@ -408,11 +408,8 @@ ComponentResult NonlinearSpace::Reset(AudioUnitScope inScope, AudioUnitElement countdown = -1; flip = true; - fpNShapeAL = 0.0; - fpNShapeBL = 0.0; - fpNShapeAR = 0.0; - fpNShapeBR = 0.0; - fpFlip = true; + fpNShapeL = 0.0; + fpNShapeR = 0.0; return noErr; } @@ -430,9 +427,6 @@ OSStatus NonlinearSpace::ProcessBufferLists(AudioUnitRenderActionFlags & ioActi Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData); Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData); Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData); - Float32 fpTemp; - Float64 fpOld = 0.618033988749894848204586; //golden ratio! - Float64 fpNew = 1.0 - fpOld; UInt32 nSampleFrames = inFramesToProcess; long double drySampleL; long double drySampleR; @@ -1161,25 +1155,14 @@ OSStatus NonlinearSpace::ProcessBufferLists(AudioUnitRenderActionFlags & ioActi drySampleR += inputSampleR; //here we combine the tanks with the dry signal - //noise shaping to 32-bit floating point - if (fpFlip) { - fpTemp = drySampleL; - fpNShapeAL = (fpNShapeAL*fpOld)+((drySampleL-fpTemp)*fpNew); - drySampleL += fpNShapeAL; - fpTemp = drySampleR; - fpNShapeAR = (fpNShapeAR*fpOld)+((drySampleR-fpTemp)*fpNew); - drySampleR += fpNShapeAR; - } - else { - fpTemp = drySampleL; - fpNShapeBL = (fpNShapeBL*fpOld)+((drySampleL-fpTemp)*fpNew); - drySampleL += fpNShapeBL; - fpTemp = drySampleR; - fpNShapeBR = (fpNShapeBR*fpOld)+((drySampleR-fpTemp)*fpNew); - drySampleR += 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 flip = !flip; *outputL = drySampleL; |