alienoiz
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Post by alienoiz on Jun 3, 2015 12:40:28 GMT 1
Hi Rob and everybody...
i´m trying to make a 4 band eq with RH_biquad filters but im not touching the Q... what happens its when i turn the last filter up and using a frequency of 12khz it sounds a big whistle like a high resonance... what am i doing wrong?
are these filters appropriated to EQ´s? im not understanding very well these ones.... i would like to know what is the Q factor here and the peakgain wich im using to rise the dBs up for the EQ!
Thanks!
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Post by Rob on Jun 4, 2015 21:43:27 GMT 1
Hi Duarte,
I haven't used the filter for EQ, years ago used SE one pole LP and HP for that.
Need to test what you are saying, will get back to you ok..
You are using four filters, serially linked, and all peak mode?
Cheers!
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alienoiz
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Post by alienoiz on Jun 5, 2015 11:55:36 GMT 1
Hey Rob,
yeah four filters, serially linked..im using Lo shelf, Lo shelf, Eq Peak, Hi shelf, for type.
+12/-12dBs on peakgain knob... im not using volts2hz for the frequency though.
What i find weird is that the first 3 filters, when tweaked, do nothing wrong...only the last one when i apply more than around 10000 on the high value of the knob.
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Post by Rob on Jun 7, 2015 17:39:50 GMT 1
Hey Duarte,
I tried recreating your setup, but didn't get the whistle. Maybe i'm doing something different?
Used Lo-shelf > Peak > Peak > Hi-shelf. Hi-shelf did produce some hiss, when modulating..
Btw, Am wondering why you used another lo-shelf for lo-mid?
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alienoiz
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Post by alienoiz on Jun 8, 2015 18:41:59 GMT 1
Hey man, thanks for replying! did you entered your frequency values with volts or did you made any conversion? I used 2 lo shelf because its an eq for a bass synth, so i though by using lo shelf twice i would achieve better results into my basses : ) ... not sure if im doing it right though!!  |
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Post by Rob on Jun 8, 2015 20:24:21 GMT 1
I didn't use any conversion, just Hz.
Hmm, I can't find any source that uses your idea.
It's all BPF or Peak, with (I guess) LP/HP for the sides of the spectrum.
To boost the bass range, just increase the gain? Problem is when it gets too high, you'll get distortion.
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alienoiz
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Posts: 148
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Post by alienoiz on Jun 9, 2015 18:00:40 GMT 1
you mean you used the knob volts has they were hz right? like low value = 20 high value = 120 for lows and kinda low value = 12000 high value = 20000 for highs?
i will try LP-Peak-Peak-HP combo!!
what about the Q entry, what shall i put on there considering EQ?
Thanks, (i´m very basic on this, no wonder why ppl are saying so bad about the vsti chosen for KVR 76`OSC)
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Post by Rob on Jun 9, 2015 22:25:38 GMT 1
I used loshelf - peak - peak - hishelf, seemed to work good as well. Didn't touch the Q. Values, using just a slider ( randomly choosen ) Loshelf : 120 Peak : 250 Peak : 1000 Hishelf : 10000 Use peakgain for all modes to boost/cut the frequency. I also read about just using BPF, like ten of them..depends on what you want. Guess you just need to test different setups untill you're satisfied.  |
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Post by Rob on Jun 9, 2015 22:27:48 GMT 1
People don't like your VST? They should just use it to make something, or don't participate.  |
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alienoiz
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Posts: 148
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Post by alienoiz on Jun 10, 2015 15:13:43 GMT 1
hey,
did you tried like 16000 on hishelf? cause with 10000 its working fine but when i use more than 12000 it does whistle like a high resonance...anyway i didnt tried yet the new combo...i will check it out in a minute
Thanks....
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alienoiz
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Posts: 148
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Post by alienoiz on Jun 10, 2015 15:20:51 GMT 1
yup, over 10850 starts to freak out!!!!
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