diff options
Diffstat (limited to 'plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp')
| -rwxr-xr-x | plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp b/plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp index 232fd21..d3d23e6 100755 --- a/plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp +++ b/plugins/MacAU/GuitarConditioner/GuitarConditioner.cpp @@ -150,8 +150,7 @@ ComponentResult GuitarConditioner::Initialize() //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ void GuitarConditioner::GuitarConditionerKernel::Reset() { - fpNShapeA = 0.0; - fpNShapeB = 0.0; + fpNShape = 0.0; fpFlip = true; lastSampleT = 0.0; lastSampleB = 0.0; //for Slews. T for treble, B for bass @@ -176,9 +175,6 @@ void GuitarConditioner::GuitarConditionerKernel::Process( const Float32 *inSou long double 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 inputSample; long double treble; long double bass; @@ -264,21 +260,14 @@ void GuitarConditioner::GuitarConditionerKernel::Process( const Float32 *inSou lastSampleB = bass; //bass slew inputSample = treble + bass; //final merge + fpFlip = !fpFlip; + //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 - //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 = not fpFlip; - //end noise shaping on 32 bit output *destP = inputSample; sourceP += inNumChannels; destP += inNumChannels; } |