Services

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Architectural and Building Acoustics

Alfa Acoustic provides complete architectural acoustic design and consulting services to its clients.

Design of Metal Perforated False Ceiling with Innovative Materials
Design of Lightweight Drywall Partitions for Hotels, Hospitals and Residential Apartments.
Acoustic Windows and Doors for optimized sound insulation
Home Theatres and Sound Studios
Field Sound Transmission Loss Measurement of Walls, Drywall Partitions
Acoustic Designer Wall Design and Testing
Acoustic Test Facility Design and Qualification as per International standards
Guidance and Consulting to Material Manufacturers and Suppliers
Acoustic Seminars and Seminars and Webminars.

Sound Absorption Coefficient-Test Standards

Sound absorption coefficient testing using two microphone impedance tube as per ISO 10534-2 / ASTM E1050 - Normal Incidence Testing
Measurement of a sound absorption coefficient in a reverberation room as per ISO 354 / ASTM C423 / IS 8225
Measurement of reverberation time in auditoria as per ISO 3382 / BS 5363

Test Components

False Ceiling Tiles, Acoustic Baffles, Diffusers, Designer Walls, Glasswool, Rockwool, etc.

Sound Absorption Testing in a Reverberation chamber

Sound Transmission Loss-Test Standards

Measurement of sound insulation in building and building elements in Lab as per ISO 10140 / ASTM E90
Standard test method for laboratory measurement of airborne sound transmission loss of building partitions using sound intensity as per ISO 15186 / ASTM E2249
Standard test method for airborne sound attenuation between rooms sharing a common ceiling plenum as per ASTM E1414
Standard test method for measurement of airborne sound attenuation between rooms in buildings as per ASTM E336
Field measurement of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation as per ISO 16283-1
Field measurement of sound insulation in buildings and of building elements - Part 2: Impact sound insulation as per ISO 16283-2
Field measurement of sound insulation in buildings and of building elements - Part 3: Façade sound insulation as per ISO 16283-3

Test Components

Dry Walls, Doors, Windows, False Ceiling, etc

Partition Wall Testing in a Reverberation Suite

Sound Insulation Testing On-site

Design and Simulation of Perforated Panels for High NRC

Alfa Acoustics can help in Design and development of perforated Tiles with high NRC values. With the help of knowledge database and expertise in Acoustic field, it is easily possible to achieve NRC values in the range of 0.7 - 0. 95

Design of Drywall Partitions for Higher STC

Alfa Acoustics can help its esteemed customers in designing and testing of high STC partition walls in a test lab and on-site in a field condition. Hardware and software test kit for on-site testing is also commercially available from Alfa Acoustics

Customized Simulation Software's for Acoustic Material Manufacturer

Alfa Acoustics can develop customized softwares for its customers which can predict acoustic performance. These softwares can also be used for development and optimization of new innovative acoustic materials at design and development stage itself.

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Acoustic Materials–Sound Absorption

Sound Absorption-Glasswool

Sound Absorption-Rockwool

Sound Absorption-Jute

Design of False Ceiling tiles for Higher NRC, Better Absorption

Design of Micro and Macro-perforated Materials for optimized acoustic performance, NRC – 0.7 to 0.9
Acoustic development of non-woven for false ceiling tiles

Macro-perforated Panel

Micro-perforated Panel

Effect of hole diameter on Sound absorption

Design of Acoustic systems for Auditoriums, Theaters, Offices

Acoustic Design and Testing of Doors, Drywall Partitions, Windows
Acoustic Nonwovens, fabrics for Chairs
Acoustic Decorative Walls-Innovative green building materials
Design and Testing of Acoustic Baffles

Design of Acoustic Baffles

Acoustic Decorative wall panel

Auditorium Chairs- Acoustic Design

New Architectural Acoustics Trends

Acoustic Paintings for Offices, Conference Rooms, Corridors, Restaurants

Today most of the offices, conference rooms, restaurants are treated with acoustic treatment along with nice paintings hung on their wall for Guests comfort. Keeping the same idea in mind, we have developed a methodology using which one can have same aesthetics with acoustic comfort. The paintings are optimized to have certain level of sound absorption coefficient which will result into reduction of reverberant noise.

Acoustic Painting

Reception of an Office with Acoustic Paintings

Corridors

Design of Acoustic Light Ceiling

Optically transparent sound absorbers made out of micro-perforated structures are again an innovative idea of combining light with acoustics. Alfa Acoustics is having core expertise in designing and optimizing these innovative acoustic products.

Translucent Acoustic ceiling

Green walls for Acoustic Insulation

Greenery systems can be designed for acoustic insulation and the urban noise reduction.

Green Acoustic Walls

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Design of Drywall Partitions, Glazings, Ceilings and Floors

Today’s world is moving towards lighter and quieter Architectural products. Considering this need, Alfa Acoustics has started design and simulation services for the Architectural products. Now it is possible to design drywall partitions, Glass partitions, Glass Glazing, Ceiling along with false ceiling and flooring with better accuracy. Alfa Acoustics is now having in-house simulation facility and domain knowledge required to design these Architectural products. Alfa Acoustics can also take care of On-site testing of these systems and can also provide consultancy for Architectural products.

Some of the Applications

Example 1 - Lined Brickwork Clay brick (90mm thick) with 1 layer of 16mm plasterboard fixed to acoustic clip and 25mm glass wool blanket in cavity.

Example 2 - Steel Stud Partition 2 layers of 13mm type X plasterboard each side of 90mm timber studs. Blanket in cavity.

Example 3- Glazing 5mm monolithic glass with 16mm air gap and 8.8mm Laminated glass

Example 4 - Profiled Steel Sheet corrugated steel sheet- 0.7mm

Example 4 - Twin framed wall 1 layer of 16mm fire rated plasterboard each side of separate 90mm studs. Cavity depth of 200mm. 90mm Glass wool blanket in cavity.