[LAD] what does "full range" mean with regard to ambisonics and speakers?

fons at kokkinizita.net fons at kokkinizita.net
Wed Aug 4 17:08:27 UTC 2010


On Wed, Aug 04, 2010 at 09:43:52AM -0700, Fernando Lopez-Lezcano wrote:

> > You are aware that those filters will be in antiphase in the xover
> > region ? 
> 
> What would you recommend?

Invert one of the two outputs...

> > Measuring subs (or anything LF) is hell... unless you have some
> > very big space.
> 
> Yeah, that is what it looks like...

If you have a large outside space with a hard and flat surface (e.g.
a large parking area with no nearby buildings, or an airfield runway),
one solution is put both the speaker and the measurement mic on the
ground (for the mic that really means at most a few cm above ground).
The mic will then see two speakers, the real one and its mirror image,
and be located at roughly the same distance from both. For low
frequencies the two will combine without disrupting the response. 

Ciao,

-- 
FA

There are three of them, and Alleline.




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