Interactive software EQ?

Discussion in 'Pro Audio' started by H. Khalil, May 30, 2006.

  1. H. Khalil

    H. Khalil Guest

    I need to equalize wav files but lack experience for quickly
    determining which EQ setting is optimal. In my current editor I need to
    stop playback each time I want to adjust the EQ setting, which I find
    very tedious.

    Does anyone know of a program (plugin) that equalizes an audio track
    _while it is playing_ in the audio editor? In particular, I would like
    to immediately hear the effect of any change in the EQ setting on the
    original track so that I can interactively fine tune.

    Thanks in advance for any help.
    H. Khalil, May 30, 2006
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  2. H. Khalil

    Big Tim Guest

    What software are you using? Pretty much any of the major DAW programs
    will allow you to EQ while playing back - Cubase, PT, Cakewalk etc. Yo
    ucould use an external EQ to determine what you need to adjust and then
    replicate your settings in the software.
    Big Tim, May 30, 2006
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  3. H. Khalil

    H. Khalil Guest

    Oh, I forgot to say I am currently using audacity. AFAIK it does not
    allow to EQ a track while it is playing; you first have to stop the
    track, apply EQ, and then play it again. Or perhaps I am missing
    H. Khalil, May 30, 2006
  4. H. Khalil

    Mike Rivers Guest

    What's your hurry? Why not listen and learn what works? If you don't
    want to do that, you need a different hobby.

    I like fresh fish. Does anyone know of a lure that will let me quickly
    drop a line into any lake or stream and bring out a nice trout? I lack
    the experience to be a good fisherman. Same thing.
    OK, now you seem to be on the right track. This requires a lot of
    processing horsepower. Most DAW programs offer a preview that works for
    a lot of people. But if you want real real time response to your
    changes, an outboard analog equalizer is the way to go. But of course
    this requires more inputs and outputs, and that dfreaded sound quality
    ruining D/A and A/D conversion (NOT).
    Mike Rivers, May 30, 2006
  5. OK, now you seem to be on the right track. This requires a lot of
    It doesn't require very much horsepower by today's standards. You can easily
    run 32 or more channels of EQ on even a modest system. 2 channels is a
    Romeo Rondeau, May 30, 2006
  6. H. Khalil

    nappy Guest

    whew.. Mike.. .!

    the O.P's request is pretty simple.. Not a stretch at all.. it is really a
    pain to have to stop to tweak.
    nappy, May 30, 2006
  7. H. Khalil

    Mike Rivers Guest

    What free program (this guy apparently doesn't want to buy ProTools)
    can do EQ in real time while the audio is playing? And then make it
    stick? Maybe this is more common that I realize now. I don't do DAWs so
    I don't keep up with them.
    Mike Rivers, May 30, 2006
  8. H. Khalil

    Mike Rivers Guest

    As he recognized. And like I said, that's not simple. Well, it is with
    an analog system, but he wants software.

    Do you have an answer to his question? I did, but it doesn't involve
    software and that seems to be his desire.
    Mike Rivers, May 30, 2006
  9. H. Khalil

    Arny Krueger Guest

    Try the free 30 day evaluation version of Audition - it has a preview mode
    for its various EFX including equalizers.
    Arny Krueger, May 30, 2006
  10. H. Khalil

    Mike Rivers Guest

    Does the preview mode allow you to hear changes in real time as you're
    playing the file? That's what he wants to do.

    I seem to remember that first you make an EQ change by guess and by
    gosh, then you can use the Preview fuction to play a short piece of the
    track with that EQ setting without processing the entire track or
    highlighted portion. But then I haven't used a version of this program
    since it was still Cool Edit.
    Mike Rivers, May 30, 2006
  11. H. Khalil

    Arny Krueger Guest


    You can move the sliders and hear the effects as applied to the track or
    file involved.
    Arny Krueger, May 30, 2006
  12. H. Khalil

    Norbert Hahn Guest

    Audition has several EQs using different software implementations:

    The 30 band EQ uses a FIR filtering which reacts rather slowly on changes
    in setting, espeically when you use a large number of coefficients for
    low frequency Eq. The delay can be a couple of seconds. As this EQ sounds
    great I usually experiment with the parametric EQ and copy the settings
    (by hand) to the 30 band EQ. Even the bypass takes a long time to react.

    The parametric EQ uses IIR type filtering and reacts very quickly to
    chances in setting but I don't like the sound of that filter. However,
    if I need a sharp cut or boost the parametric EQ cannot be replaced by
    a 30 band EQ.

    The FFT filter is also fast reacting. I don't know much about the
    scientific filters, I use them regularly for low cut though.

    With Audition 1.5 all filters allow preroll/postroll during rehearsal
    and have a bypass option at rehearsal.

    Norbert Hahn, May 30, 2006
  13. H. Khalil

    nappy Guest

    Sorry Mike.. My point was that you derided him for a simple desire.. one
    which most pro - apps provide . no offense.. but the fresh fish thing
    sounded like you got up on the wrong side of the bed.. You're normally a
    good source of patience and information.
    nappy, May 30, 2006
  14. H. Khalil

    H. Khalil Guest

    Thanks everybody for your help. I really appreciate it.
    H. Khalil, May 30, 2006
  15. H. Khalil

    Ricky Hunt Guest

    If Audacity can use VST/DX plugins there's a few free and pay ones that will
    do what you want (if the plugins run in real time; I've never seen an editor
    where you couldn't).
    Ricky Hunt, May 30, 2006
  16. H. Khalil

    jlo Guest

    H. Khalil a écrit :
    I did a free soft (stand-alone or VST) that is simple to use to equalize
    in real time a wav file while you are playing. You can also record the
    Get it at :
    It has 5 parametrics to Eq for headphones but you can also use it for
    speakers (don't use the crossfeed function, then)
    A generator with various signals (sine, pink, bonger, pulse) is included
    to help equalising.
    jlo, May 30, 2006
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