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PC World 2008 February
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reaper
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reaper2028-install.exe
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Effects
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SStillwell
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4x4
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2007-12-03
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3KB
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104 lines
desc:4x4 3 band EQ with harmonic enhancement
slider1:0<0,100,0.1>lo drive%
slider2:0<-12,12,0.1>lo gain
slider3:0<0,100,0.1>mid drive%
slider4:0<-12,12,0.1>mid gain
slider5:0<0,100,0.1>hi drive%
slider6:0<-12,12,0.1>hi gain
slider7:240<60,500,1>low-mid xover for multiband
slider8:2400<510,10000,10>mid-high xover for multiband
@init
log2db = 8.6858896380650365530225783783321; // 20 / ln(10)
db2log = 0.11512925464970228420089957273422; // ln(10) / 20
pi = 3.1415926535;
halfpi = pi / 2;
halfpiscaled = halfpi * 1.41254;
@slider
mixl = slider1 / 100;
mixm = slider3 / 100;
mixh = slider5 / 100;
drivel = mixl;
drivem = mixm;
driveh = mixh;
drivel1 = 1 / (1 - (drivel / 2));
drivem1 = 1 / (1 - (drivem / 2));
driveh1 = 1 / (1 - (driveh / 2));
drivel2 = drivel / 2;
drivem2 = drivem / 2;
driveh2 = driveh / 2;
al = min(slider7,srate) / srate;
ah = max( min(slider8,srate) / srate , al );
mixl1 = 1 - mixl;
mixm1 = 1 - mixm;
mixh1 = 1 - mixh;
mixl2 = mixl / 2;
mixm2 = mixm / 2;
mixh2 = mixh / 2;
gainl = exp(slider2 * db2log);
gainm = exp(slider4 * db2log);
gainh = exp(slider6 * db2log);
mixlg = mixl * gainl;
mixmg = mixm * gainm;
mixhg = mixh * gainh;
mixlgd = mixl * gainl * drivel1;
mixmgd = mixm * gainm * drivem1;
mixhgd = mixh * gainh * driveh1;
mixlg1 = mixl1 * gainl;
mixmg1 = mixm1 * gainm;
mixhg1 = mixh1 * gainh;
@sample
dry0 = spl0;
dry1 = spl1;
lf1h=lfh;
lfh=dry0 + lfh - ah*lf1h;
high_l=dry0-lfh*ah;
lf1l=lfl;
lfl=dry0 + lfl - al*lf1l;
low_l=lfl*al;
mid_l = dry0 - low_l - high_l;
rf1h=rfh;
rfh=dry1 + rfh - ah*rf1h;
high_r=dry1-rfh*ah;
rf1l=rfl;
rfl=dry1 + rfl - al*rf1l;
low_r=rfl*al;
mid_r = dry1 - low_r - high_r;
wet0_l = mixlgd * low_l * (1 - abs(low_l * drivel2));
wet0_m = mixmgd * mid_l * (1 - abs(mid_l * drivem2));
wet0_h = mixhgd * high_l * (1 - abs(high_l * driveh2));
wet0 = (wet0_l + wet0_m + wet0_h);
dry0_l = low_l * mixlg1;
dry0_m = mid_l * mixmg1;
dry0_h = high_l * mixhg1;
dry0 = (dry0_l + dry0_m + dry0_h);
wet1_l = mixlgd * low_r * (1 - abs(low_r * drivel2));
wet1_m = mixmgd * mid_r * (1 - abs(mid_r * drivem2));
wet1_h = mixhgd * high_r * (1 - abs(high_r * driveh2));
wet1 = (wet1_l + wet1_m + wet1_h);
dry1_l = low_r * mixlg1;
dry1_m = mid_r * mixmg1;
dry1_h = high_r * mixhg1;
dry1 = (dry1_l + dry1_m + dry1_h);
spl0 = dry0 + wet0;
spl1 = dry1 + wet1;