Simple filter plugins
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- KVRAF
- 4080 posts since 22 Aug, 2012
Minimal Audio Hybrid Filter is simple with lots of filtering options.
https://www.minimal.audio/products/hybrid-filter
https://www.minimal.audio/products/hybrid-filter
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concealed identity concealed identity https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=215821
- KVRian
- 1065 posts since 21 Sep, 2009
I recommend "Things Crusher" by AudioThing for this.
https://www.audiothing.net/effects/things-crusher/
Although its name implies it's a bitcrusher, that's only half of it- the other half is a multimode filter that that imo sounds really good. It also shows the frequencies being affected with a spectrum analyzer like you want.
It's also only $19, but goes on sale for much cheaper from time to time if you're not in a hurry.
https://www.audiothing.net/effects/things-crusher/
Although its name implies it's a bitcrusher, that's only half of it- the other half is a multimode filter that that imo sounds really good. It also shows the frequencies being affected with a spectrum analyzer like you want.
It's also only $19, but goes on sale for much cheaper from time to time if you're not in a hurry.
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- KVRAF
- 5573 posts since 30 May, 2006 from Hollow Earth
Get Kilohearts Snap Heap and the free collection of the Free Essentials etc.
ABEFLGMOPPRRST 
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simon.a.billington simon.a.billington https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=341278
- KVRAF
- 2596 posts since 12 Nov, 2014
Arturia has several based on real synth filters, then there is LouderThanLiftOff that do this HP, LP, Tilt kind of thing. Then there is the Waves Metafilter that has a built in delay and can run in a gating kind of mode.