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author | Chris Johnson <jinx6568@sover.net> | 2019-01-27 21:13:54 -0500 |
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committer | Chris Johnson <jinx6568@sover.net> | 2019-01-27 21:13:54 -0500 |
commit | 966f2d253cd2ee6ce140ad68095a20a9d2b63052 (patch) | |
tree | b0400d95bd06512531ade6ddf55190a58b6a5623 /plugins/LinuxVST/src/SideDull | |
parent | 0887543349dbbec0721a1fc8b1c7deba9afefa8b (diff) | |
download | airwindows-lv2-port-966f2d253cd2ee6ce140ad68095a20a9d2b63052.tar.gz airwindows-lv2-port-966f2d253cd2ee6ce140ad68095a20a9d2b63052.tar.bz2 airwindows-lv2-port-966f2d253cd2ee6ce140ad68095a20a9d2b63052.zip |
Floating Point Dither For All
Diffstat (limited to 'plugins/LinuxVST/src/SideDull')
-rwxr-xr-x | plugins/LinuxVST/src/SideDull/.vs/Console4Channel64/v14/.suo | bin | 0 -> 32768 bytes | |||
-rwxr-xr-x | plugins/LinuxVST/src/SideDull/.vs/VSTProject/v14/.suo | bin | 0 -> 23040 bytes | |||
-rwxr-xr-x | plugins/LinuxVST/src/SideDull/SideDull.cpp | 6 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/SideDull/SideDull.h | 6 | ||||
-rwxr-xr-x | plugins/LinuxVST/src/SideDull/SideDullProc.cpp | 66 |
5 files changed, 22 insertions, 56 deletions
diff --git a/plugins/LinuxVST/src/SideDull/.vs/Console4Channel64/v14/.suo b/plugins/LinuxVST/src/SideDull/.vs/Console4Channel64/v14/.suo Binary files differnew file mode 100755 index 0000000..777b846 --- /dev/null +++ b/plugins/LinuxVST/src/SideDull/.vs/Console4Channel64/v14/.suo diff --git a/plugins/LinuxVST/src/SideDull/.vs/VSTProject/v14/.suo b/plugins/LinuxVST/src/SideDull/.vs/VSTProject/v14/.suo Binary files differnew file mode 100755 index 0000000..68a45bd --- /dev/null +++ b/plugins/LinuxVST/src/SideDull/.vs/VSTProject/v14/.suo diff --git a/plugins/LinuxVST/src/SideDull/SideDull.cpp b/plugins/LinuxVST/src/SideDull/SideDull.cpp index 547f1fd..479bdfd 100755 --- a/plugins/LinuxVST/src/SideDull/SideDull.cpp +++ b/plugins/LinuxVST/src/SideDull/SideDull.cpp @@ -16,10 +16,8 @@ SideDull::SideDull(audioMasterCallback audioMaster) : iirSampleA = 0.0; iirSampleB = 0.0; flip = true; - fpNShapeAL = 0.0; - fpNShapeBL = 0.0; - fpNShapeAR = 0.0; - fpNShapeBR = 0.0; + fpNShapeL = 0.0; + fpNShapeR = 0.0; //this is reset: values being initialized only once. Startup values, whatever they are. _canDo.insert("plugAsChannelInsert"); // plug-in can be used as a channel insert effect. diff --git a/plugins/LinuxVST/src/SideDull/SideDull.h b/plugins/LinuxVST/src/SideDull/SideDull.h index 6f431ac..ef5e892 100755 --- a/plugins/LinuxVST/src/SideDull/SideDull.h +++ b/plugins/LinuxVST/src/SideDull/SideDull.h @@ -55,10 +55,8 @@ private: double iirSampleA; double iirSampleB; bool flip; - long double fpNShapeAL; - long double fpNShapeBL; - long double fpNShapeAR; - long double fpNShapeBR; + long double fpNShapeL; + long double fpNShapeR; float A; }; diff --git a/plugins/LinuxVST/src/SideDull/SideDullProc.cpp b/plugins/LinuxVST/src/SideDull/SideDullProc.cpp index 347e5e8..7b77744 100755 --- a/plugins/LinuxVST/src/SideDull/SideDullProc.cpp +++ b/plugins/LinuxVST/src/SideDull/SideDullProc.cpp @@ -17,9 +17,6 @@ void SideDull::processReplacing(float **inputs, float **outputs, VstInt32 sample double overallscale = 1.0; overallscale /= 44100.0; overallscale *= getSampleRate(); - float fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -88,27 +85,14 @@ void SideDull::processReplacing(float **inputs, float **outputs, VstInt32 sample inputSampleL = (mid+side)/2.0; inputSampleR = (mid-side)/2.0; - //noise shaping to 32-bit floating point - if (flip) { - fpTemp = inputSampleL; - fpNShapeAL = (fpNShapeAL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeAL; - - fpTemp = inputSampleR; - fpNShapeAR = (fpNShapeAR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeAR; - } - else { - fpTemp = inputSampleL; - fpNShapeBL = (fpNShapeBL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeBL; - - fpTemp = inputSampleR; - fpNShapeBR = (fpNShapeBR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeBR; - } - flip = !flip; - //end noise shaping on 32 bit output + //stereo 32 bit dither, made small and tidy. + int expon; frexpf((float)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexpf((float)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 32 bit dither *out1 = inputSampleL; *out2 = inputSampleR; @@ -130,9 +114,6 @@ void SideDull::processDoubleReplacing(double **inputs, double **outputs, VstInt3 double overallscale = 1.0; overallscale /= 44100.0; overallscale *= getSampleRate(); - double fpTemp; //this is different from singlereplacing - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -201,27 +182,16 @@ void SideDull::processDoubleReplacing(double **inputs, double **outputs, VstInt3 inputSampleL = (mid+side)/2.0; inputSampleR = (mid-side)/2.0; - //noise shaping to 64-bit floating point - if (flip) { - fpTemp = inputSampleL; - fpNShapeAL = (fpNShapeAL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeAL; - - fpTemp = inputSampleR; - fpNShapeAR = (fpNShapeAR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeAR; - } - else { - fpTemp = inputSampleL; - fpNShapeBL = (fpNShapeBL*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeBL; - - fpTemp = inputSampleR; - fpNShapeBR = (fpNShapeBR*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeBR; - } - flip = !flip; - //end noise shaping on 64 bit output + //stereo 64 bit dither, made small and tidy. + int expon; frexp((double)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexp((double)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 64 bit dither *out1 = inputSampleL; *out2 = inputSampleR; |