WHAT ARE
ACOUSTICAL
MATERIALS
-Are materials designed and used for
absorbing sound or noise that might
otherwise be reflected.
3 WAYS TO IMPROVE ACOUSTICS
AND SOLVE SOUND PROBLEMS:
THE ABC’S OF
ACOUSTIC
DESIGN:
ABC
Absorb
(Ceiling tiles)
Block
(Partitions)
Cover
(Sound Masking)
TYPES OF
MATERIALS:
➢ Sound Absorbers
➢ Sound Diffusers
➢ Noise Barriers
➢ Sound Reflectors
SOUND ABSORBERS
Lessen the echo and
reverberation within the
room and improve speech
intelligibility and overall clarity.
SOUND ABSORBERS 1. Acoustical Foam Panels
Used in a wide variety of applications
like Recording, Broadcast Studios, and
Commercial and Industrial facilities.
These are applied directly to walls,
hung as baffles or freestanding.
SOUND ABSORBERS
SOUND ABSORBERS 1. Pyramidal Foam Panel-
Perfect for music studios and
quiet rooms. It reflects noise
waves less, directing it in
different directions.
2. Eggcrate Foam Panel-
Perfect for large rooms and
recording studios. Unlike
Pyramidal tiles, it reflects the
sound less and absorb more.
Also used in many firearm
shooting ranges.
3. Anechoic wedge panels- are
SOUND ABSORBERS specialized acoustic foam panels
designed to absorb sound and
reduce echoes. They are often
used in recording studios, testing
rooms, and anechoic chambers.
4. Checkered Acoustic foam
panels- improves the acoustics
of a room by reducing unwanted
echoes and reverberation.
Typically made from materials
like polyester fiber or foam, and
they come in various patterns,
including checkered designs.
5. White Paintable Panels- are
SOUND ABSORBERS a versatile and popular choice
for improving the acoustics of a
room while allowing for
customization to match your
décor. made from high-density
fiberglass, which helps to absorb
sound and reduce echo and
reverberation in a room
6. Fabric Wrapped Panels-
These panels absorb sound
waves, particularly in the mid to
high-frequency range, reducing
echo and reverberation.
SOUND DIFFUSERS
Unlike sound absorbers, which
soak up sound energy to reduce
noise, diffusers scatter sound
waves in various directions. This
scattering helps to create a more
balanced and even distribution
of sound throughout a room.
1. Quadra Pyramidal- This
SOUND DIFFUSERS diffuser generates a uniform
polar response over a broad
frequency range using pre-
rotated pyramidal pattern to
create 16 angles of reflection.
2. Pyramidal- Traditional
industry workhorse disperses
sound uniformly over a broad
frequency range. A quick solution
to flutter echo.
3. Double Duty Diffuser-
SOUND DIFFUSERS Polycylindrical diffusers that do
twice the work. They scatter
sound and function as a bass
trap.
4. Quadratic Diffuser- Designed
for uniform broadband scattering
and reducing high-Q reflections.
NOISE BARRIERS
A structure designed to reduce or
block noise pollution from
reaching certain areas. These
barriers are commonly used
along highways, railways, and
industrial sites to minimize the
impact of noise on nearby
residential or sensitive areas.
A noise barrier must be tall and long enough
NOISE BARRIERS to block the view of a highway from the area
that is to be protected by the Receiver.
Materials that are best for
noise barriers:
NOISE BARRIERS
1. Concrete
2. Masonry
3. Wood
4. Metal
5. Foams
SOUND REFLECTORS
Are materials or objects
designed to bounce sound
waves back into the space they
originated from. They help to
control and direct sound,
improving acoustics in a room.
SOUND REFLECTORS
Materials that are best for
sound reflectors:
1. Concrete
2. Asphalt
3. Rock
4. Glass
WHY IS IT IMPORTANT TO CONTROL
SOUND/ UNWANTED SOUND?
Effective sound control in architecture
ensures that spaces serve their
intended purposes, whether for
communication, work, relaxation,
or entertainment, without being
compromised by unwanted noise.
NUGGETS???
THANK YOU!
