[LAU] Console based software EQ for jack

Stefan Stefanov selectany at gmail.com
Thu Jan 17 20:55:27 UTC 2013

Hi Arnold

You are right, I would like/prefer as you said to " fitting my
speakers with their
characteristics into my room".

I'll do some researches how exactly to accomplish this.


2013/1/17 Arnold Krille <arnold at arnoldarts.de>:
> On Wed, 16 Jan 2013 17:46:55 +0200 Stefan Stefanov
> <selectany at gmail.com> wrote:
>> My music server is headless (no graphical environment).
>> I'm using mpd + JACK to play music.
>> Now I need some software equalizer (JACK based of course), but running
>> in daemon mode.
> My I suggest the possibility that you are looking at the wrong tools
> for your problem?
> I think you are not looking for an equalizer. You are looking for
> digital room correction (aka DRC) fitting your speakers with their
> characteristics into your room with its characteristics and make it
> sound right[TM] and without any quirky "characteristics".
> The tools for this (as far as I remember, its been a while since I set
> mine up):
>  - aliki to record the impulse-response of your setup
>  - drc to compute the correction impulse to be folded onto your signal
>  - jconvolver to actually fold your music signal with the correction
>    pulse. This will be your work-horse.
>  - And of course jack to plug it all toghether.
> The first two steps would be done on your main machine (but playing the
> measurement-sweeps through your actual speakers). jack and jconvolver
> would run on your headless music server.
> The results are far better then anything you can achieve with an EQ,
> regardless how many bands it might have. An EQ can never compensate for
> the time-effects of your setup.
> Have fun,
> Arnold
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