VCF not working [Willzyx kit]
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- mmm
- Posts: 517
- Joined: Tue Apr 24, 2012 1:51 am
Re: VCF not working [Willzyx kit]
For peace of mind you may want to check at the pin closest to C13 if you have also a signal too with Resonance set to min (though I'm pretty sure you'll have a signal there).
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- Posts: 22
- Joined: Sun Mar 31, 2013 1:59 am
Re: VCF not working [Willzyx kit]
Yes, I have a signal on that pin when I set Resonance to min. I found it interesting that as I turn Resonance down, the amplitude of the wave increases around two-fold when Cutoff is set min and around 5-fold when Cutoff is set to max. Is this to be expected?
Thank you VERY much for your help antto and MMM!!!
Thank you VERY much for your help antto and MMM!!!
- mmm
- Posts: 517
- Joined: Tue Apr 24, 2012 1:51 am
Re: VCF not working [Willzyx kit]
I haven't checked if this is to be expected on this scale but in general a resonance increase leads to a level decrease.mavzz wrote:I found it interesting that as I turn Resonance down, the amplitude of the wave increases around two-fold when Cutoff is set min and around 5-fold when Cutoff is set to max. Is this to be expected?
Good filter designs compensate for this; for example by boosting the filter input level simultaneously. The xoxbox (and 303) take a different approach: The Resonance control doesn't only send the signal back to the ladder; it also sends the signal proportionally to the VCA in addition the to the "regular" filter output.
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- Posts: 22
- Joined: Sun Mar 31, 2013 1:59 am
Re: VCF not working [Willzyx kit]
Cool, that's really interesting to know!
Thank for all your help MMM!
Thank for all your help MMM!
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- Posts: 85
- Joined: Sun Jul 29, 2012 8:54 am
Re: VCF not working [Willzyx kit]
This looks like what I need to go through.
Please be positive and constructive with your questions and comments.