diff options
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/WinVST/Console4Buss | |
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/WinVST/Console4Buss')
-rwxr-xr-x | plugins/WinVST/Console4Buss/.vs/VSTProject/v14/.suo | bin | 23040 -> 23040 bytes | |||
-rwxr-xr-x | plugins/WinVST/Console4Buss/Console4Buss.cpp | 7 | ||||
-rwxr-xr-x | plugins/WinVST/Console4Buss/Console4Buss.h | 7 | ||||
-rwxr-xr-x | plugins/WinVST/Console4Buss/Console4BussProc.cpp | 63 |
4 files changed, 22 insertions, 55 deletions
diff --git a/plugins/WinVST/Console4Buss/.vs/VSTProject/v14/.suo b/plugins/WinVST/Console4Buss/.vs/VSTProject/v14/.suo Binary files differindex 82160f2..d8e035e 100755 --- a/plugins/WinVST/Console4Buss/.vs/VSTProject/v14/.suo +++ b/plugins/WinVST/Console4Buss/.vs/VSTProject/v14/.suo diff --git a/plugins/WinVST/Console4Buss/Console4Buss.cpp b/plugins/WinVST/Console4Buss/Console4Buss.cpp index 79c7f6f..0c8e00c 100755 --- a/plugins/WinVST/Console4Buss/Console4Buss.cpp +++ b/plugins/WinVST/Console4Buss/Console4Buss.cpp @@ -22,11 +22,8 @@ Console4Buss::Console4Buss(audioMasterCallback audioMaster) : gainchase = -90.0; settingchase = -90.0; chasespeed = 350.0; - fpNShapeLA = 0.0; - fpNShapeLB = 0.0; - fpNShapeRA = 0.0; - fpNShapeRB = 0.0; - fpFlip = true; + fpNShapeL = 0.0; + fpNShapeR = 0.0; // TODO: uncomment canDo entries according to your plugin's capabilities // _canDo.insert("sendVstEvents"); // plug-in will send Vst events to Host. diff --git a/plugins/WinVST/Console4Buss/Console4Buss.h b/plugins/WinVST/Console4Buss/Console4Buss.h index b19e6f2..9a9cbfb 100755 --- a/plugins/WinVST/Console4Buss/Console4Buss.h +++ b/plugins/WinVST/Console4Buss/Console4Buss.h @@ -71,11 +71,8 @@ private: char _programName[kVstMaxProgNameLen + 1]; std::set< std::string > _canDo; - double fpNShapeLA; - double fpNShapeLB; - double fpNShapeRA; - double fpNShapeRB; - bool fpFlip; + double fpNShapeL; + double fpNShapeR; //default stuff double lastSampleL; double lastSampleR; diff --git a/plugins/WinVST/Console4Buss/Console4BussProc.cpp b/plugins/WinVST/Console4Buss/Console4BussProc.cpp index 712e496..dde872a 100755 --- a/plugins/WinVST/Console4Buss/Console4BussProc.cpp +++ b/plugins/WinVST/Console4Buss/Console4BussProc.cpp @@ -18,10 +18,6 @@ void Console4Buss::processReplacing(float **inputs, float **outputs, VstInt32 sa double overallscale = 1.0; overallscale /= 44100.0; overallscale *= getSampleRate(); - float fpTemp; - double fpOld = 0.618033988749894848204586; //golden ratio! - double fpNew = 1.0 - fpOld; - long double inputSampleL; long double inputSampleR; long double half; @@ -123,25 +119,14 @@ void Console4Buss::processReplacing(float **inputs, float **outputs, VstInt32 sa //this is the inverse processing for Console: boosts but not so much if there's slew. //is this too subtle an effect? - //noise shaping to 32-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //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; @@ -163,9 +148,6 @@ void Console4Buss::processDoubleReplacing(double **inputs, double **outputs, Vst 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; @@ -267,25 +249,16 @@ void Console4Buss::processDoubleReplacing(double **inputs, double **outputs, Vst //this is the inverse processing for Console: boosts but not so much if there's slew. //is this too subtle an effect? - //noise shaping to 64-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //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; |