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In the Forum: Audio Discussions
In the Thread: Romy The Cat's new Listening Room
Post Subject: Parametric filtersPosted by el`Ol on: 5/15/2010
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 unicon wrote:

if you could understand the basics about how audio waves especially bass range acts in closed space you wouldnt even bring the name Bass EQ
it just cures the sound pressure in a single spot(listener) and possibly can not do anything about ring of bass, and what we even hear is the constant  of Frequency over time which in playback audio describes as Q (quality factor) the most importance and usually  the most ignored aspect of room audio by DIGI EQ makers ...


In fact I don't understand why a parametric filter of exacly the right Q not also flattens the frequency response at a particular room mode, but also removes the ringing (in theory), but I have read about it and I have also seen a CSD of an experiment that verifies it. There is a company from Finland that makes subwoofer crossovers with auto-tuned parametric filters, but I have forgotten the name.
And that a sufficiently long FIR filter can do compensation also in the time domain for a particular listening position is self-evident even for me.

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