diff options
Diffstat (limited to 'plugins/MacAU/ButterComp/ButterComp.cpp')
| -rwxr-xr-x | plugins/MacAU/ButterComp/ButterComp.cpp | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/plugins/MacAU/ButterComp/ButterComp.cpp b/plugins/MacAU/ButterComp/ButterComp.cpp index 612eb3c..5280a58 100755 --- a/plugins/MacAU/ButterComp/ButterComp.cpp +++ b/plugins/MacAU/ButterComp/ButterComp.cpp @@ -188,9 +188,6 @@ void ButterComp::ButterCompKernel::Process( const Float32 *inSourceP, Float64 overallscale = 2.0; overallscale /= 44100.0; overallscale *= GetSampleRate(); - Float32 fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; Float64 inputpos; Float64 inputneg; Float64 calcpos; @@ -286,11 +283,11 @@ void ButterComp::ButterCompKernel::Process( const Float32 *inSourceP, inputSample /= outputgain; if (wet < 1.0) inputSample = (drySample * dry)+(inputSample*wet); - //noise shaping to 32-bit floating point - fpTemp = inputSample; - fpNShape = (fpNShape*fpOld)+((inputSample-fpTemp)*fpNew); - inputSample += fpNShape; - //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; |