Hi,
I think I found a bug in lf_sawpos.
Run this code trough a scope, and you'll see what I mean.
import("oscillator.lib");
import("music.lib"); // for decimal, which should be in math.lib imho
process =
lf_sawpos(fr)
,
lf_sawpos( index2freq(lf_sawpos(fr) ))
,
my_lf_sawpos(fr)
,
my_lf_sawpos( index2freq(my_lf_sawpos(fr)) )
with {
my_lf_sawpos(freq) = decimal ~ +((freq/SR));
frequency = hslider("frequency", 55, -55, 440, 1);
depth = hslider("lfo depth", 1, 0, 2, 0.001);
lfo = oscrs(2);
fr = frequency+(lfo*depth*frequency);
index2freq(index) = ((index-index')*SR) : sampleAndHold((index-index')!=-1);
sampleAndHold(sample) = select2((sample!=0):int) ~ _;
};
-With the default settings, lf_sawpos regularly goes down, even though
there are no negative frequencies.
-With 0 lfo depth, and a negative frequency, lf_sawpos still ramps up
-When you calculate the frequency from the saw, and use that to drive
another saw, the problem becomes even more clear.
Cheers,
Bart.
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