"loco" wrote in message
i'd like to hear what do you guys think of this new and
innovative product:
http://www.realsoundlab.com/index.php?technology=1
The product doesn't claim to be "room correction" (even if such
a thing can exist).
"Arny Krueger" wrote:
Room equalization is a limited tool. No amount of math wizardry can change
that.
"We have worked to fulfil an audio engineer's dream - whatever is the
problem you face of an acoustic system, just measure it and correct it with
a corrector with inverse characteristics."
Major inherent problems:
(1) A room is stimulated by speakers at a finite and small number of points.
Basic math says that you can only correct its response at a similar or fewer
number of points.
(2) The problem of nulls. You can dump virtually unlimited amounts of power
into a cancellation null and never correct it.
What you end up with is an equalized speaker response (better ? ...)
that may be flatter and theoretically better sounding. Even Bose has
EQ to correct for their speaker's characteristic response.
A properly equalized system can sound better than the same
unequalized system no matter where it's being played.
The problem lies in the measurement that might be taken in a room
with it's own response issues (many in the time domain) that can't
be reasonably corrected.
rd