Ideal SubWoofer Placement - A Proven, Simple Procedure

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A_C,

> 3) Now, physically get down on all fours and slowly crawl around <

That's a good trick, but the results depend on the key of the music that's
playing. Remember, the response in a room varies by location *and*
frequency. If the music's frequencies don't align with the room modes, this
technique may not work as well as expected. I think a better solution is to
play pink noise or some other "broadband" low frequency source while you
crawl around.

--Ethan

Archived from groups: rec.audio.pro (More info?)

I think "Pink Noise" is the name of a Japanese girls rock band.


"Mike T." <miket@invalid.net> wrote in message
news:fdvr11148h4ukee9ib0b807jb3p0aldp31@4ax.com...
> On Thu, 24 Feb 2005 10:15:18 -0500, "Ethan Winer" <ethanw at
> ethanwiner dot com> wrote:
>
> >A_C,
> >
> >> 3) Now, physically get down on all fours and slowly crawl around <
> >
> >That's a good trick, but the results depend on the key of the music
that's
> >playing. Remember, the response in a room varies by location *and*
> >frequency. If the music's frequencies don't align with the room modes,
this
> >technique may not work as well as expected. I think a better solution is
to
> >play pink noise or some other "broadband" low frequency source while you
> >crawl around.
> >
> >--Ethan
> >
> Yeah, but it's really hard to judge the quality and "tightness" of the
> bass in pink noise!
> Mike T.
>

Archived from groups: rec.audio.pro (More info?)

Mike,

> Yeah, but it's really hard to judge the quality and "tightness" of the
bass in pink noise! <

The only thing you can achieve with subwoofer placement is a change in low
frequency response. Modal ringing, which is what determines "tightness,"
will be the same regardless. This is why speaker and sub placement (and room
EQ) can never be a substitute for bass trapping. Only absorption can reduce
decay time and modal ringing. And even the most ideal placement still leaves
lots of peaks and deep nulls in the response. But placement is a good first
step.

--Ethan