High Pass Filters | How To Use Them, When To Avoid Them

[@jeffrosen2010]

That’s….. that’s how filters work…. That’s how eq works….

[@trubleSum1]

I really like how you switched from high pass to low pass and vice versa to demonstrate what was removed from the mix. Thank you.

[@martijndebonnet4325]

Could you explain to me why it is a problem that the sub 80hz goes out of phase on a track, if we are completely cutting it out anyway?

[@TheMonkBeatsOne]

nice summing abou HP filtering. You should also mention that increasing the Q factor (resonance) at the filter frequency helps to reduce the phase shift, for any kind of filter slope

[@GreenLightSound]

Good point.

[@crimson3510]

gEEEZIZ! This is a god mode video! great great great video! thank you!

[@LloydMajor]

Thank you for the class!

[@TheOnlineBusker]

Great vid! At 3:30 you said "this is the junk we don't need", would you do the same if it was just acoustic gtr and vox? or would you "need" that lower stuff? Thanks!

[@GreenLightSound]

I would still reduce/cut out any extremely low info, below 60Hz or so.

[@brownpunk1794]

Hi Joe..im a new guy to all this..very confusing..is High filter pass same as high shelf filter?..i use Reaper DAW.appreciate if you can simplify

[@GreenLightSound]

High pass filter cuts out the low end at a set frequency, allowing the highs to "pass" through. You can set the slope to be very gradual, or very steep. High shelf filters work on the top end of the spectrum, boosting or cutting at a set gain level above whatever frequency you set. They literally look like a flat shelf when you see the EQ curve.

[@correametal]

Another excellent video. Thanks!!

[@rickdeaguiar-musicreflecti7692]

Excellent tutorial/explanation of a high pass filter. Thank you 👍

[@Jonas_Shepard]

does this change with the zero latency natural or linear phase options?

[@alesnovak2906]

I'm using linear phase for low/high cut to avoid shifting problems and because of the latency i commit/bounce the track after.

[@Jason-hg4pd]

Yes it does. This is a nice video but falls very short by not including linear phase examples.

[@XiyuYang]

@@alesnovak2906 I would be very careful use linear phase EQs in mixing in general, that introduces tons of issues and practically solves no problem - the only scenarios I can think of that justify using a linear phase EQ while mixing, are crossover filters and parallel EQs (which, contrary to popular beliefs, does not necessarily mean you have to use linear phase EQ) Phase shift is not always your enemy, in fact in many cases (such as analog outboard, or plugins that emulate analog devices), phase shift is a huge factor behind why certain units sound the way they do. So, in short, yes - do be mindful of phase coherence, and no - don't let phase scare you away from making certain moves.

[@plaguelordrapture]

Excellent information, as usual!

[@fcmas]

So what is the actual issue created in regards to the phase shift cause by the high pass you showed? As in, what is the actual detriment to the aubible sound, that phase shift created?

[@josefwashere]

Great explanation of how High Pass works. I’ve seen many videos from well known and bedroom producers explaining this but they never get in depth to exactly showing the A/ B comparisons. It is great to see the low pass vs. high pass affects and showing / explaining the phasing aspect. Also demonstrating how you can combine using the low pass with a shelf EQ was equally as important because this lets the viewer understand how to keep dynamics of each sound you’re affecting. Thanks again for another great tutorial.

[@kamsplanz]

Great video. I have been using FabFilter for 6 months and this explained it ten times better than most, quickly and clearly. Even a lot better than their own videos! Now if you could just do a video on every plugin I use, that would be great, haha! What’s that plug-in doctor all about? I’m guessing it’s just a bigger reading that allows you to judge the phase response? I use spectral analysers for the same job, but it doesn’t give me a frozen image- just a live reading. I produce dnb and have been brick walking everything… wondered why everything sounded so washed out, even though I am cutting within the right frequency ranges. I only have Pro-Q 2, but will definitely be upgrading now I’ve got my head round it a bit more, thanks to you. To be completely honest I never right clicked before, I’m familiar with EQ- just each plugin instance has a different GUI which is where the confusion set in. Jolly good show, definitely be checking out your other content! Peace.

[@McEnroe911]

Another great video. Thanks.

[@akshayyc010]

This was game changer for me👏👏

[@87degreespodcast]

Great video.. Do you think it would be the same with the Oxford EQ ?

[@GreenLightSound]

Yes.

[@Mumbojumbo20]

Can’t you use a Linear Phase EQ? Fabfilter has an option for it

[@GreenLightSound]

You could, but they often come with their own set of issues.

[@luisval5812]

Excelente

[@newguy6935]

I prefer to use shelves myself and I don't worry that there are still some subfrequencies left over. Quite frankly, those leftover subs contribute to the warmth of the instrument. If you really feel like you have to "kill the subs", add another shelf.

[@LYSHEmusic]

Nice vid. But fliping filter from HP to LP doesn't show us what changes we bring or which frequency was cuted. Solo band or maybe delta solo could do this better. As for filtering I also can recomend to try different plugins. For example, I like better what Analog Obsesion COMBOX filters is doing to the sound than proQ. Perhaps it's because of saturation or another filter type, but it doesn't matter - it's just good to try different options. Also Gregory Scott (KUSH) made his own little plugin for filtering working in Logic - I think there's a reason for him to do this:)

[@XiyuYang]

This makes me wonder: what are the scenarios that you would use a steep filter? I assume to avoid phase shift with a steep filter you could use linear phase EQ but that introduces a whole set of issues of its own

[@TheMonkBeatsOne]

in mastering situations, or in mixing on bass, kick or on a buss that glues kick and bass, steep filter with linear phase

[@XiyuYang]

@@TheMonkBeatsOne Bass I agree, especially crossover filters, however I would avoid using linear phase EQ on an acoustic kick, in which case the pre ringing on transient heavy signals with ample low end information (such as a kick close mic) would be audible and obnoxious. Not sure why you would glue bass and kick though, that doesn't make any sense.

[@TheMonkBeatsOne]

@@XiyuYang forgot to mention: I was thinking at electronic music : ) you right about the linear phase on an acoustic kick. Also, in a rock pop situation there's no need usually to have a buss to treat kick and bass together. In electronic music such as EDM, hip hop or similar that's instead pretty usual.

[@XiyuYang]

@@TheMonkBeatsOne I see, thanks for clearing it up! I usually work with metal, rock, jazz and chamber musicians so I don’t know anything about mixing electronic music. I'll go educate myself a bit on this subject:)

[@TheMonkBeatsOne]

@@XiyuYang at a certain level, mixing so different genres needs to be a product specialist :) but it's great to know techniques used in different situations.

[@boobo3763]

Stellar video. Much appreciated...