Logic Pro: Low Cut, High Pass Filter, AUHipass - difference ?

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wucao

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Hi

In Apples Logic Pro there are a Low Cut Plugin, a High Pass Filter Plugin and a AUHiPass Plugin. I thought, these plugins do all the same? So, why are there three plugins in Logic Pro which do the same thing? And when should I use which of these plugins?
 
Yep, they'll do essentially the same thing. I don't have Logic, so I don't precisely know if they have some additional parameters (judging from screenshots, no - only the cutoff frequency), but it might be that Low Cut and High Pass have different filter slopes - ie. how steeply the cut is done (filters never cut everything below/above the cutoff point but start rolling off from there). AUHiPass is one of OSX's own audio units, which is why it's there. No particular reason to use one over the other, unless, of course they sound different (because of the shape of the slope).
 
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I usually use 'low cut' for automation purposes, 'high pass filter' for a lane that just needs the filter in general, and I have no idea for the AUHipass. I never touch that plugin
 
Those "AU*insert name*" Plugs come on your Mac. They're on even without Logic Pro. I'm pretty sure Logic has a parametric EQ that does everything those filters does with more ease. Those "AU*insert name*" plugs IMO are garbage!
 
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