On 07/01/2014 07:05 PM, Marc Lavallée wrote:
Hi Fons.
Tue, 1 Jul 2014 16:45:31 +0000,
Fons Adriaensen <f...@linuxaudio.org> wrote :
* If your room acoustics are bad, using directional speakers
will not necessarily help, they could even make things worse.
Unless maybe when you're building a PA system in a sports hall.
What sort of problem would cause a directional speaker in a room?
since speakers are only directional for higher frequencies (basically as
a function of the radiating waveguide/column length in terms of
wavelengths), a "directional" speaker will cause a muddy or boomy
diffuse field (because it is dominated by the uncontrolled low
frequency). a speaker tailored for wide dispersion will have
proportionally more HF in the diffuse field, which may be more pleasant
in the end.
the overall tone color of a massive multichannel speaker systems in any
reverberant room can easily be dominated by the uncontrolled "leakage"
to the sides.
add to that the fact that it is very easy to control high frequencies by
wall treatment, and prohibitively complicated/expensive to absorb low
frequencies, and directional speakers are suddenly a lot less desirable
than they look on paper :)
--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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