The document discusses various acoustic panel materials and their properties that can be used to improve acoustics in auditoriums. It describes acoustic panels made of sound absorbing cotton and aluminum frames that provide wide frequency sound absorption. It also mentions decorative acoustic wall panels that have both acoustic and decorative functions. Acoustic tiles, drywall, carpet, foam and eco-friendly absorption materials are outlined with their acoustic properties and applications in rooms where optimal sound is desired such as recording studios, theaters and meeting halls. Seating for auditoriums is also covered, describing molded foam, finishes and numbered/identified seats for ease of use.

1. ACOUSTICS
AUDITORIUM
SUBMITTED BY
LAKSHMI ANIL
ANUSHA L
ABHILASH K R

2. GOOD ACOUSTICS INVOLVE
• GOOD DISTRIBUTION OF SOUND TO ALL THE
SEATS, WHICH DEPENDS ON PROPER
SHAPING AND FINISHES OF ALL INTERIOR
SUFACES.
• NATURAL SOUND DIFFUSION AND
ENVELOPMENT.
• A SENSE OF INTIMACY FOR THE AUDIENCE
AND A SENSE OF ENSEMBLE FOR BOTH
PERFORMERS AND AUDIENCE.
• PROPER REVERBERATION TIMES THROUGH
OUT ALL FREQUENCIES, WHICH DEPEND ON
ROOM’S VOLUMEAND THE TOTAL SOUND
ABSORPTION OF ALL MATERIALS.
• FREEDOM FOR THE ACOUSTICAL FAULTS OF
ECHOES, FLUTTER, AND FOCUS.

3. ACOUSTIC PANEL
MATERIAL DETAIL :
1. WIDE SOUND ABSORPTION SPECTRUM
2. HIGH ABSORPTION COEFFICIENT
3. DUST-FREE
4. ASTM E-84 CLASS A
STRUCTURE:
FILLED WITH NON-COMBUSTIBLE AND MICRO-PERFORATED
TREATED SPECIAL SOUND ABSORBING COTTON INSIDE THE
ALUMINUM FRAME, AND COVERED WITH THE FIREPROOF
FABRIC OUTSIDE.
FEATURE:
1. WIDE FREQUENCY SOUND ABSORPTION, GOOD SOUND
ABSORPTION EFFECT FOR LOW, MEDIUM AND HIGH
FREQUENCY SOUND, THE ACOUSTIC PROPERTIES ARE
TESTED BY THE DOMESTIC AUTHORITIES, SHOWN AS
BELOW
2. FIREPROOF, DUST FREE, NO FORMALDEHYDE POLLUTION
3. STRONGLY DECORATIVE, MULTIPLE COLORS AND
PATTERNS DECORATIVE FABRIC FOR CHOOSE
APPLICATION:
USED IN THE PLACES NEEDING ACOUSTIC DESIGN: HOTEL,
OFFICE, CINEMA, THEATER, CONCERT HALL, GYMNASIUM,
RECORDING ROOM, STUDIO, CONFERENCE HALL,
EXCHANGE, BUSINESS HALL, KARAOKE HALL, BALL ROOM,
HOSPITAL, LIBRARY, STATION WAITING ROOM, RESTAURANT,
AUDITION ROOM, HOME THEATER, ETC.
SPECIFICATION:
THICKNESS: 50MM
STANDARD SIZE: 1200×600×50MM, 600×600×50MM
BIGGEST SIZE: 6000×2400×50MM
•

4. ACOUSTIC PANEL

5. DECORATIVE ACOUSTIC WALL
PANEL
MATERIAL DETAIL :
1. any design, any picture can be applied to the panel
2. have both function, acoustic and decoration function
Structure:
filled with fiberglass inside, aluminum frame, wrapped by
fiberglass cloth, and covered with the printed fabric on
the surface.
Feature:
have both functions, acoustic function and decoration
function
Application:
hotel, office, cinema, theater, concert hall, gymnasium,
recording room, studio, conference hall, exchange,
business hall, karaoke hall, ball room, hospital, library,
station waiting room, restaurant, audition room, home
theater, etc.
Specification:
Thickness: 25mm
Standard size: 1200x600mm, 600x600mm
The biggest size: 6m*1.6m.

6. DECORATIVE ACOUSTIC WALL
PANEL

7. ACCOUSTICAL TILES
Acoustical
ceiling tiles
• Widely used as a material usually made of mineral or
cellular fibers. Sold in panels ranging from 12” x 12” up to 24”
x 48”.
ACCOUSTICAL DRYWALL
• Usually made of synthetic materials, but also made from
wool,cotton or other fibers.
• Absorptivity is good only in high frequencies, and is based on
the thickness. Carpet absorbs sound, but can also attenuate
impact sounds since it prevents hard contact with floor surface.
NRC ranges typically between 0.20 to 0.55.
• Made by proprietary companies, (such as Serious Materials),
these panels are made of conventional gypsum and additional
sound-absorbing materials. Fairly expensive, approx. $40.00 per
4’x8’ sheet.
CARPET

8. ACOUSTIC FOAM
ACOUSTIC FOAM IS AN OPEN CELLED FOAM USED FOR
ACOUSTIC TREATMENT. IT ATTENUATES AIRBORNE SOUND
WAVES BY INCREASING AIR RESISTANCE, THUS REDUCING
THE AMPLITUDE OF THE WAVES.
STRUCTURE:
PIECES OF FOAM, OFTEN IN THE SHAPE OF CONES OR
TRIANGLES ON WALLS, CEILING AND FLOORS.
FEATURES:
ACOUSTIC FOAM IS A LIGHTWEIGHT MATERIAL MADE
FROM POLYURETHANE FOAM EITHER POLYETHER OR
POLYESTER, AND ALSO EXTRUDED MELAMINE FOAM.
Applications:
ACOUSTIC FOAM IS PRIMARILY USED IN RECORDING
STUDIOS TO MINIMIZE SOUND ECHOES. HOWEVER,
IT CAN PERFORM THE SAME FUNCTION IN HOME
THEATERS, MANUFACTURING FACILITIES,
EQUIPMENT WAREHOUSES, HOME OFFICES,
GYMNASIUMS AND AUDITORIUMS. IT CAN BE PLACED
IN ANY ROOM WHERE AN OPTIMAL SOUND MIX IS
DESIRED.
SPECIFICATION:
SIZE: 6' X 3' X 2" (SIX FEET X 3 FEET X 2 INCH)
OVERALL NRC: 0.67

9. ACOUSTIC FOAM

10. ECO-C-TEX ABSORPTION
MATERIAL
THE GREENEST ACOUSTIC MATERIAL IN TODAY'S
MARKETPLACE . COMPOSED OF A BLEND OF RECYCLED
COTTON AND CELLULOSE FIBERS (THE MAJORITY OF
WHICH IS POST-CONSUMER RECYCLED NEWSPAPER!) .
STRUCTURE:
ECO-C-TEX IS A BLEND OF RECYCLED COTTON AND
CELLULOSE FIBERS.
FEATURES:
• HIGHEST QUALITY DIGITAL FABRIC PRINT.
• EASY TO HANDLE, INSTALL AND CLEAN.
• NFPA FIRE RATED.
APPLICATIONS:
ACOUSTICAL BAFFLES, OR SOUND BAFFLES, ARE YOUR
SOLUTION TO REDUCE ECHO AND HELP CONTROL
UNWANTED NOISE IN CHURCHES, GYMNASIUMS,
WORKOUT ROOMS, CONFERENCE HALLS, OFFICE SPACES
AND OTHER LARGE AREAS WITH HIGH CEILINGS. THEY
ARE FUNCTIONAL AND MAKE AN IMPRESSIVE VISUAL
STATEMENT.
SPECIFICATION:
AVAILABLE IN 2MM, 3.2MM AND 6.4MM THICKNESSES.

11. ECO-C-TEX

13. SEATING
TECHNICAL CHARACTERISTICS
• Seat and back moulded polyurethene self extinguishing foam
• Wide variety of finishes[m1 fire barrier, customized
uphoistered,plywood or perforated polypropyiene and glass
fibre moulded back- good accoustics]
• Moulded aluminium support- Legs are moulded aluminium
epoxy finish 2.5 cm for aesthetic improvement as weel as
cleaning and maintainance.
• Seats could be numbered [optional] .End arms [ left or right]l
with row identification.

14. COLORS AVAILABLE