diff options
Diffstat (limited to 'plugins/MacAU/TapeDust/TapeDust.cpp')
| -rwxr-xr-x | plugins/MacAU/TapeDust/TapeDust.cpp | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/plugins/MacAU/TapeDust/TapeDust.cpp b/plugins/MacAU/TapeDust/TapeDust.cpp index 1f87d66..c586339 100755 --- a/plugins/MacAU/TapeDust/TapeDust.cpp +++ b/plugins/MacAU/TapeDust/TapeDust.cpp @@ -167,9 +167,8 @@ ComponentResult TapeDust::Initialize() void TapeDust::TapeDustKernel::Reset() { for(int count = 0; count < 11; count++) {b[count] = 0.0; f[count] = 0.0;} - fpNShapeA = 0.0; - fpNShapeB = 0.0; - fpFlip = true; + fpNShape = 0.0; + fpFlip = false; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -184,9 +183,6 @@ void TapeDust::TapeDustKernel::Process( const Float32 *inSourceP, UInt32 nSampleFrames = inFramesToProcess; const Float32 *sourceP = inSourceP; Float32 *destP = inDestP; - Float32 fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSample; Float64 drySample; Float64 rRange = pow(GetParameter( kParam_One ),2)*5.0; @@ -250,20 +246,13 @@ void TapeDust::TapeDustKernel::Process( const Float32 *inSourceP, if (wet < 1.0) { 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; |