[LAU] [Bulk] Re: Tilt EQ

Fons Adriaensen fons at linuxaudio.org
Thu May 5 15:38:46 UTC 2016


On Thu, May 05, 2016 at 01:32:01PM +0200, Jörn Nettingsmeier wrote:

> If I have understood the previous posts correctly, a tilt EQ is even
> simpler than two shelves: just use a single one at the desired tilt
> frequency and adjust the overall gain, like Fons mentioned:

The advantage of using two shelf filters would be that you can have
some control over the slope of the transition region.

By combining even more shelf filters you can get as close as you
want to the limiting case, which is what I would call a 'tilt EQ':
a filter that has a constant (+ or -) slope (in dB/oct) over the
entire audio range. This can be done _exactly_ only if the slope
is an integer multiple of 6dB/oct.

Ciao,

-- 
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)



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