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PC World 2007 July & August
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PCWorld_2007-07-08_cd.bin
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audio-video
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reaper
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reaper1861-install.exe
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Effects
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Misc
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tonifier
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Text File
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2007-02-12
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2KB
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96 lines
// This effect Copyright (C) 2004 and later Cockos Incorporated
// License: GPL - http://www.gnu.org/licenses/gpl.html
desc: tonifier
slider1:0<-100,6,1>wet mix (dB)
slider2:-100<-100,6,1>dry mix (dB)
slider3:10<1,1000,10>block size (ms)
slider4:0<-48,48,1>freq shift (semitones)
slider5:0<0,6,1>max auto shift (octaves)
slider6:100<0,20000>auto shift min frequency (Hz)
slider7:1000<0,20000>auto shift max frequency (Hz)
slider8:0,Output frequency (Hz)
@slider
lbsize=bsize;
bsize=(slider3*srate*0.001)|0;
ibsize=1/bsize;
sscal=2 ^ (slider4/12)*ibsize*2;
wet=2 ^ (slider1/6)*ibsize*1.7; // 1.7 seems about right for volume scaling
dry=2 ^ (slider2/6);
lbsize != bsize ? (
bpos=
zccnt0=zccnt1=
lzccnt0=lzccnt1=
ampcnt0=ampcnt1=
lampcnt0=lampcnt1=
ls0=ls1=0;
);
maxf=slider7/srate*2; minf=slider6/srate*2;
@block
updcnt=updcnt+samplesblock;
updcnt > srate*0.2 ? ( updcnt=0; slider8=(freq0+freq1)*0.25*srate; sliderchange(128); );
@sample
// count zero crossings
ts0=spl0>0;
ts0 && ls0 ? zccnt0+=1;
ls0=!ts0;
ts1=spl1>0;
ts1 && ls1 ? zccnt1+=1;
ls1=!ts1;
// count amplitude (square maybe?)
ampcnt0+=abs(spl0);
ampcnt1+=abs(spl1);
// find local amplitude and update buffer
fbpos=bsize+bsize+bpos+bpos;
acnt0=lampcnt0+ampcnt0-fbpos[0];
fbpos[0]=ampcnt0;
fbpos+=1;
acnt1=lampcnt1+ampcnt1-fbpos[0];
fbpos[0]=ampcnt1;
// find local zero crossing count and update buffer
fbpos=bpos+bpos;
lcnt0=lzccnt0+zccnt0-fbpos[0];
fbpos[0]=zccnt0;
fbpos+=1;
lcnt1=lzccnt1+zccnt1-fbpos[0];
fbpos[0]=zccnt1;
// advance buffer
bpos+=1;
bpos >= bsize ? (
bpos=0;
// keep ampcnt* and zccnt* in a reasonable range
lampcnt0=ampcnt0;
lampcnt1=ampcnt1;
lzccnt0=zccnt0;
lzccnt1=zccnt1;
ampcnt0=ampcnt1=zccnt0=zccnt1=0;
);
freq0=lcnt0*sscal;
freq1=lcnt1*sscal;
loop(slider5,
freq0 > maxf ? freq0*=0.5 : (freq0 < minf ? freq0 *= 2);
freq1 > maxf ? freq1*=0.5 : (freq1 < minf ? freq1 *= 2);
);
tpos0=tpos0+$pi*freq0;
tpos1=tpos1+$pi*freq1;
spl0=sin(tpos0)*acnt0*wet + spl0*dry;
spl1=sin(tpos1)*acnt1*wet + spl1*dry;