Brickwall filtering {high pass, low pass }

Discussion in 'Mixing and Mastering' started by Kick Radio, Sep 21, 2014.

  1. Kick Radio

    Kick Radio Newbie

    Joined:
    Jan 15, 2014
    Messages:
    2
    Likes Received:
    0
    i know its a noob question but i am a noob to mixing and mastering
    Whats the best brick-wall / digital eq that gives clean cuts like high-pass and low-pass
    i'v been using SSL duende channel strip but they replicate analog so its not a cut were i want it its more like an incremental cut till where want it
     
    Kick Radio, Sep 21, 2014
    1
  2. Ads Master

    Ads Master

     
  3. Catalyst

    Catalyst Audiosexual

    Joined:
    May 28, 2012
    Messages:
    5,803
    Likes Received:
    805
    FabFilter Pro Q 2 is good for the job as it's very surgical. Great eq. *yes*
     
    Catalyst, Sep 21, 2014
    2
  4. fuad

    fuad Producer

    Joined:
    Dec 17, 2012
    Messages:
    435
    Likes Received:
    101
    +100000 for Fabfilter, one of the best EQ's around
     
    fuad, Sep 22, 2014
    3
  5. junh1024

    junh1024 Rock Star

    Joined:
    Jul 28, 2011
    Messages:
    1,397
    Likes Received:
    433
    I'd like to say Izotope Ozone 5 EQ: Brickwall lopass/hipass has slightly sharper filters than ProQ2, from my preliminary tests.
     
    junh1024, Sep 22, 2014
    4
  6. ArticStorm

    ArticStorm Moderator Staff Member

    Joined:
    Jun 7, 2011
    Messages:
    8,595
    Likes Received:
    4,512
    Location:
    AudioSexPro
    ozone sharper? Q2 has 96dB HP/LP.
     
    ArticStorm, Sep 22, 2014
    5
  7. junh1024

    junh1024 Rock Star

    Joined:
    Jul 28, 2011
    Messages:
    1,397
    Likes Received:
    433
    Yes.

    I know 96dB/O sounds like a lot, but since Octave=doubling in frequency, a 96dB/O Lopass @4K will only go to -96dB at (2x4K=) approx 8K.

    ProQ2 has a transition band of a few K @4K in 0L mode, same in LP mode.

    EQ5 has a transition band of 550hz @4K in Analog mode, 100hz in LP mode.

    ProQ2 0L

    [​IMG]

    EQ5 A
    [​IMG]

    ProQ2 LP
    [​IMG]


    EQ5 LP
    [​IMG]

    NB: In ProQ2, the filter dB scale is on the left, the audio dB scale is on the right. In EQ5, on the left is the audio dB scale, on the right is the filter dB scale.


    Anyway, with MOST EQs, even free ones and DAW builtin, by applying any lowpass or hipass, you should get a cleaner sound. Sharpness could play a small part, or a gentle shape could do well, or acceptable.
     
    junh1024, Sep 22, 2014
    6
  8. superliquidsunshine

    superliquidsunshine Guest

    Wow, who knew?
     
    superliquidsunshine, Sep 22, 2014
    7
  9. transporter1333

    transporter1333 Member

    Joined:
    Oct 27, 2013
    Messages:
    252
    Likes Received:
    15
    Location:
    Brazil
    Nice post
    Interesting answers....
    :wink: :wink:
     
    transporter1333, Sep 22, 2014
    8
  10. fuad

    fuad Producer

    Joined:
    Dec 17, 2012
    Messages:
    435
    Likes Received:
    101
    @junh1024

    Excellent comparison and extremely useful advice. Thank you.

    Although having said that I do think the uses for brickwall filtering would be very limited and cause things to sound unnatural, but if you're looking for absolute sharpness, then there you it
     
    fuad, Sep 22, 2014
    9
  11. Catalyst

    Catalyst Audiosexual

    Joined:
    May 28, 2012
    Messages:
    5,803
    Likes Received:
    805
    That's what I was thinking, aren't gentle slopes more musical? We're talking sharp attenuation here.
     
    Catalyst, Sep 22, 2014
    10
  12. Baxter

    Baxter Audiosexual

    Joined:
    Jul 20, 2011
    Messages:
    3,948
    Likes Received:
    2,788
    Location:
    Sweden
    Christian Budde's Rubberfilter
    Steepest filter I know (384dB/oct). Freeware. Not to be automated/modulated.
    http://www.savioursofsoul.de/Christian/vst-plugins/eqs-filters/
    [​IMG]
     
    Baxter, Sep 22, 2014
    11
  13. Guitarmaniac64

    Guitarmaniac64 Rock Star

    Joined:
    Jun 5, 2011
    Messages:
    1,377
    Likes Received:
    332
    Wow that last picture looks more like a what a gate does than a passing filter use that curve or shall i call it cut? on a HP and it IS a gate.
     
    Guitarmaniac64, Sep 22, 2014
    12
  14. mild pump milk

    mild pump milk Russian Milk Drunkard

    Joined:
    Mar 29, 2014
    Messages:
    2,849
    Likes Received:
    2,424
    Location:
    Russia
    rs-met engineersfilter
    it's free
    it has a lot of filter types, etc.
    there is one filter type that cuts as flat as brickwall is. Like that -> |___
    High order (20), low ripple, high rejection
    type: elliptic

    I've never seen brickwallier filter than this one.
    If you're high-cutting at 1 kHz, there will be about 1030 Hz at -120 dB......
    But will be a lot of ringing (and it is a minimum phase only)
     
    mild pump milk, Sep 22, 2014
    13
Loading...
Similar Threads - Brickwall filtering {high Forum Date
Brickwall filter at 20khz? Mixing and Mastering May 22, 2020
The cleanest brickwall limiter for mastering OSX Mixing and Mastering Jun 16, 2014
Last EQ search question Any EQ's with comb filtering? Working with Sound Oct 12, 2022
Filtering in cubase like ableton Cubase / Nuendo Feb 28, 2022
Low-Pass Filtering on Mastering Stage Mixing and Mastering Jul 29, 2021
Loading...