SynthMakerjobro ·
Ok this is a nasty bug. The filter works properly until you feed an LFO to the cutoff. Nice sounding filters anyway.
http://www.yousendit.com/transfer.php?a ... 0B4A92ABFF
AUDIO OAK filter bug
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skOre ·
Well, this is actually not the filter but the way you handle it. By using an LFO this way, the frequency will sometimes drop below zero, something that most filters dislike. So what you really want to do is normalzie the output of the LFO!
jobro ·
AH! My bad didn't think that far! Thanks for the help. This means that I need to rectify the signal right? How do I go about doing so?
rlahalla ·
use a "hertz - 0 to 1" component between your LFO and filter. I believe . . .
Shifrin ·
jobro wrote: AH! My bad didn't think that far! Thanks for the help. This means that I need to rectify the signal right? How do I go about doing so?
If you've a periodic function running from -1..1 you could rectify the signal but that will alter the waveshape. All you want to do is map -1..1 to 0..1 which you can do by adding 1 and then dividing through by 2. So if we had the values -0.8 and 0.8 as inputs we'd get :-
(-0.8 + 1)/2 = 0.1 ( 0.8 + 1)/2 = 0.9
Of course in your schematic it's far faster to multiply by 0.5 than to divide by 2 😉
Shif.
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