Audiotool board archive

how could i recreate a linear phase eq?

relative mAJOR · started 2019-09-25 15:40 · updated 2019-09-27 14:47

i want a linear phase eq. how can i recreate it?

Comments (38)

2019-09-25 15:42 · 2019-09-25

why not just use Curve? or are you trying to replicate curve?

2019-09-25 15:44 · 2019-09-25

is it linear phase? for the longest time i saw when i highpassed my sounds they got louder instead of quieter and that never made sense. i see in a yt vid that with phase issues the daw reads the loudest part of the waveform so if it's offset..... i hope im getting this right. highpassing he said does that.

kurp · reply
2019-09-25 15:45 · 2019-09-25

highpassing is only letting the high frequencies be audible... lol

2019-09-25 15:45 · 2019-09-25

yeah but for some reason the sound is read as louder. if i'm wrong please explain.

kurp · reply
2019-09-25 15:46 · 2019-09-25

screenshot what setup you have

2019-09-25 15:46 · 2019-09-25

not in a setup rn and it's not really something i can screenshot either it's something i do

2019-09-25 15:46 · 2019-09-25

highpassing makes the sound read as louder

2019-09-25 15:47 · 2019-09-25

if i have a illegally compressed master and i highpass, it gets louder

kurp · reply
2019-09-25 15:47 · 2019-09-25

read? you can only hear sounds not read them

2019-09-25 15:47 · 2019-09-25

no the audio meter will read it as louder the compressor will read it as louder

kurp · reply
2019-09-25 15:48 · 2019-09-25

is this the setting you put in for highpass?

2019-09-25 15:49 · 2019-09-25

no i use an actual highpass not a lowshelf

kurp · reply
2019-09-25 15:49 · 2019-09-25

that IS a highpass

2019-09-25 15:50 · 2019-09-25

between -40db (shelf) and 48db/oct(highpass) its kinda hard to tell

2019-09-25 15:51 · 2019-09-25

click on that first button at the bottom

2019-09-25 15:51 · 2019-09-25

that's a highpass

kurp · reply
2019-09-25 15:51 · 2019-09-25

i give up my dude you are giving me random information and you do not make your points very clear

2019-09-25 15:52 · 2019-09-25

let me clarify

2019-09-25 15:52 · 2019-09-25

the first button at the bottom click it that is a highpass

2019-09-25 15:53 · 2019-09-25

the lowshelf turns it down. the highpass turns it down, but rolls it off

kurp · reply
2019-09-25 15:53 · 2019-09-25

bUT IT's the same if it's at the complete bottom rEEEEEEE

2019-09-25 15:54 · 2019-09-25

idk maybe the highpass stops somewhere

kurp · reply
2019-09-25 15:56 · 2019-09-25

it goes to 96 db max, plus the actual lowpass thing stops at 96 too

2019-09-25 15:57 · 2019-09-25

curve only has 48

2019-09-25 15:57 · 2019-09-25

wait they updated it?

2019-09-25 16:01 · 2019-09-25

wait you mean that highpass filters stop at 96db?

2019-09-25 21:59 · 2019-09-25

AFAIK we don't have a linear phase filter. What do need this property for?

2019-09-26 14:28 · 2019-09-26

Maybe I misunderstood this principle but I thought linear phase EQ`s are only of importance for audio recordings with several microphones to the same sound source, because this causes a phase delay of the signals in the sum?

Known As I · reply
2019-09-26 20:10 · 2019-09-26

Another reason might be the production of flanging/phaser effects which should sound different with those filters. And in theory there might be audible differences as well. Wikipedia states "Grossly changed phase relationships, without changing amplitudes, can be audible but the degree of audibility of the type of phase shifts expected from typical sound systems remains debated" in "Phase distortion"
They also introduce audible delays. I really doubt he needs this type of filter.

2019-09-27 14:47 · 2019-09-27

I agree that this might be unnecessary, or very low priority. Phase artefacts by zero/minimum latency EQ (the common one) are usually negligible. And some mixing engineers dislike the "characterless" equalisation from linear phase EQs. I think they're useful only in multi mic recordings as stated above or for subtle transparent changes in mastering.