diff options
Diffstat (limited to 'plugins/MacAU/Average/Average.cpp')
| -rwxr-xr-x | plugins/MacAU/Average/Average.cpp | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/plugins/MacAU/Average/Average.cpp b/plugins/MacAU/Average/Average.cpp index 200aafa..d2ee078 100755 --- a/plugins/MacAU/Average/Average.cpp +++ b/plugins/MacAU/Average/Average.cpp @@ -170,9 +170,7 @@ void Average::AverageKernel::Reset() { register UInt32 count; for(count = 0; count < 11; count++) {b[count] = 0.0; f[count] = 0.0;} - fpNShapeA = 0.0; - fpNShapeB = 0.0; - fpFlip = true; + fpNShape = 0.0; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -221,10 +219,6 @@ void Average::AverageKernel::Process( const Float32 *inSourceP, f[9] /= overallscale; //and now it's neatly scaled, too - Float32 fpTemp; - Float64 fpOld = 0.618033988749894848204586; //golden ratio! - Float64 fpNew = 1.0 - fpOld; - while (nSampleFrames-- > 0) { inputSample = *sourceP; if (inputSample<1.2e-38 && -inputSample<1.2e-38) { @@ -285,19 +279,11 @@ void Average::AverageKernel::Process( const Float32 *inSourceP, //if it 'won't change anything' but our sample might be at a very different scaling //in the floating point system. - //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; |