diff options
Diffstat (limited to 'plugins/MacAU/Chorus/Chorus.cpp')
-rwxr-xr-x | plugins/MacAU/Chorus/Chorus.cpp | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/plugins/MacAU/Chorus/Chorus.cpp b/plugins/MacAU/Chorus/Chorus.cpp index c82a9f8..6a4eb69 100755 --- a/plugins/MacAU/Chorus/Chorus.cpp +++ b/plugins/MacAU/Chorus/Chorus.cpp @@ -181,9 +181,8 @@ void Chorus::ChorusKernel::Reset() airEven = 0.0; airOdd = 0.0; airFactor = 0.0; - fpNShapeA = 0.0; - fpNShapeB = 0.0; - fpFlip = true; + fpNShape = 0.0; + fpFlip = false; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -214,10 +213,6 @@ void Chorus::ChorusKernel::Process( const Float32 *inSourceP, Float64 tupi = 3.141592653589793238 * 2.0; Float64 offset; //this is a double buffer so we will be splitting it in two - - Float32 fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSample; Float64 drySample; @@ -282,19 +277,11 @@ void Chorus::ChorusKernel::Process( const Float32 *inSourceP, inputSample = (inputSample * wet) + (drySample * dry); } - //noise shaping to 32-bit floating point - if (fpFlip) { - fpTemp = inputSample; - fpNShapeA = (fpNShapeA*fpOld)+((inputSample-fpTemp)*fpNew); - inputSample += fpNShapeA; - } - else { - fpTemp = inputSample; - fpNShapeB = (fpNShapeB*fpOld)+((inputSample-fpTemp)*fpNew); - inputSample += fpNShapeB; - } - fpFlip = !fpFlip; - //end noise shaping on 32 bit output + //32 bit dither, made small and tidy. + int expon; frexpf((Float32)inputSample, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSample += (dither-fpNShape); fpNShape = dither; + //end 32 bit dither *destP = inputSample; destP += inNumChannels; |