Essential Install Home Cinema Insight June 2017 | Page 33

Home Cinema Insight | Acoustic Treatment
Artnovion has a
whole range of
science based
and good looking
solutions for your
acoustic treatment
needs
acoustic pressure. Common Bass Traps are panels that
use one or some of these elements, but at Artnovion we
have created a truly effective low frequency treatment
that applies all of these techniques.”
The Helmholtz resonator effect exploits the fact that
when a sound wave hits the perforated panel, the air
in the perforations creates a localised pressure pocket
that causes resistance to the incoming wave, dissipating
energy, as well as permitting the wave to interact with
the acoustic foam core. This technique is used to target
certain frequencies by relating the perforation size to a
targeted bandwidth.
Jorge continues: “Our HP Bass Traps are designed
to have maximum efficiency. They have a posterior air
gap, that allows for a double Helmholtz effect on the
front and back of the panel. Then, a double layer of
acoustic foam, front and back. After the foam, there
is a cavity with a heavy micro perforated membrane,
one stiff and one mounted in a rubber surround, not
only to target a larger frequency range, but also to
avoid harmonic resonance in the Bass Trap itself. These
membranes are micro perforated, acting as another
layer of Helmholtz resonators and allowing the sound
particles to pass through another air gap to a thick
central core of high-density acoustic foam. Our Bass
Trap HP shows a unique combination of technology
and design, acting on both acoustic pressure and high-
speed particles, providing the best performance to size
ratio in the market, with an absorption rate peaking at
0,95 in the low frequency range.”
The company also produces a tuneable version of its
HP Bass Trap.
Reflections created by the room and things within it
are combated by scattering or diffusing the sound around
a space. Artnovion has a range of Diffuser products, with
distinct functions and applications.
Jorge says: “For example, our QRD Diffusers, such as
Alps, provide a more disperse scattering field that our
1D or 2D diffusers, meaning it is usually located where
incoming waves tend to be more perpendicular, such as
behind speakers or around listening points, to help create
a uniform sound field or ‘sweet spot’ at the listening point.
“Alps is made of solid ash, with a completely sealed
surface, minimising the energy or ‘information’ it removes
from the room, instead distributing it evenly. Our 1D
diffusers, such as the curved Douro diffuser, or 2D Lugano
or Jaya, on the other hand are better employed with
higher angles of incidence, usually placed at mid-point
between source and listening point and transmitting
more than stalling the wave. Although when placed in an
array, even a 1D diffuser can produce good short-range
scattering. This allows for complete freedom with design,
but guaranteeing top performance.”
Artnovion also has a range of hybrid panels, panels
that mix the qualities of an absorber and diffuser,
for example, Sahara, treats two problems, providing
broadband absorption and high frequency diffusion on
the same panel.
Invision and Artnovion are now available to offer
installers the knowledge and the products to treat each
room with the right amount of treatments to not only
create the right sound, but help the room look great too.
CAVD has several option here including a complete
package from Home Theatre Environment (HTE) are an
Italian company headed by master craftsman Maurizio
Conti. HTE design, manufacture and install elegant
customised, comfortable media room environments. The
aim is to provide home cinemas, private theatres and
listening with the perfect balance of aesthetics and artisan
fabrication and furnishings. CAVD says the acoustic
treatments are flawlessly engineered and invisible.
Integrators can make use of HTE’s free, fast Online
Room Configurator. In less than 10 minutes an estimate
with supporting text can be created to add to a proposal.
A typical HTE system would include acoustic wall panels
that form the main design of the room. Aesthetically all
of the panels look the same, but behind the luxurious
fabric, each are hand made employing a wide range
of thicknesses, slots and holes plus HTE’s Ecofiber. The
complete system is mounted on HTE’s Alustud structure
which exploits the helmholtz effect right across the room.
CAVD says HTE has also mastered the art of sound
isolation and add their SilentCeiling and SilentWall
options to many projects.
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