diff options
Diffstat (limited to 'plugins/MacAU/Tremolo/Tremolo.cpp')
| -rwxr-xr-x | plugins/MacAU/Tremolo/Tremolo.cpp | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/plugins/MacAU/Tremolo/Tremolo.cpp b/plugins/MacAU/Tremolo/Tremolo.cpp index e70b244..6e1f644 100755 --- a/plugins/MacAU/Tremolo/Tremolo.cpp +++ b/plugins/MacAU/Tremolo/Tremolo.cpp @@ -173,9 +173,7 @@ void Tremolo::TremoloKernel::Reset() depthAmount = 0.0; lastSpeed = 1000.0; lastDepth = 1000.0; - fpNShapeA = 0.0; - fpNShapeB = 0.0; - fpFlip = true; + fpNShape = 0.0; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -216,9 +214,6 @@ void Tremolo::TremoloKernel::Process( const Float32 *inSourceP, Float64 out; Float64 bridgerectifier; Float64 offset; - Float32 fpTemp; - Float64 fpOld = 0.618033988749894848204586; //golden ratio! - Float64 fpNew = 1.0 - fpOld; while (nSampleFrames-- > 0) { inputSample = *sourceP; @@ -289,22 +284,12 @@ void Tremolo::TremoloKernel::Process( const Float32 *inSourceP, //apply tremolo, apply gain boost to compensate for volume loss inputSample = (drySample * (1-depth)) + (inputSample*depth); - //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; sourceP += inNumChannels; |