Our objective is to be part of an interdisciplinary team in which our role is to create acoustical environment that are conducive to the activities of a building’s occupants. We create the required environment by reducing the noise transmission into the space, noise generation within the space and by shaping/treating room's surfaces to absorb and reflect sound. Our involvement commences early in the project so that our recommendations are considered in the design phases, and continues through Construction Administration in order that the required details are executed properly in the field. Recommendations and performance criteria are only developed after an understanding of a project has been established in collaboration with the designer and other project consultants. In our role as Acoustical consultants we are involved with:

Room Acoustics

Room acoustics determine how sound behaves in an enclosed space:

Appropriate room acoustics is essential in all spaces where music or speech is to be transmitted to a listener: concert halls, theaters, cinemas, restaurants, classrooms, courtrooms, and places of worship, to name a few. Appropriate acoustics improves speech intelligibility and provides a quiet environment. Room acoustical design involves the analysis of direct and reflected sound. We evaluate the volume, shapes and properties of all interior surfaces.

Sound Isolation

Sound isolation is the practice of reducing noise transmission and enhancing privacy between interior spaces:

Everyone has experienced unwanted sound intrusion: a television in the next room, a loud neighbor, or a jet flying over. Sound isolation reduces the transmission of sound from exterior sources. Sound isolation is to “isolate” or “soundproof” one space from another space or the exterior environment. Sound/Noise will travel from the outside environment or adjacent space via wall, doors, windows, roof, openings, etc. Sound isolation is to reduce the sound coming via these paths to an acceptable level. Improved sound isolation increase the privacy between the spaces. Sound isolation is important for a range of noise-sensitive spaces, including residences, offices, and recording studios.

Mechanical/Plumbing/Electrical/Equipment Noise and Control

Noise/vibration generated by support equipment can be an intruding factor.

Our objective is to create a quiet and comfortable environment. In order to do that it is necessary to engineer mechanical, electrical, and plumbing systems that reduce noise intrusion and vibration disturbances from these systems located within and outside of buildings. We use proven engineering techniques for mitigating noise and vibration from various equipment.

A building and its occupants are susceptible to vibration disturbance from sources in the environment and within buildings. Building and ground vibration are the unwanted effect of heavy transportation such as lorries and trains, pile-driving equipment and large machines such as heavy-duty compressors. These activities can cause vibration to travel through the ground and transmit to nearby structures.
Human activity and mechanical equipment within the building can also produce vibration disturbance within a building.
Vibration is disruptive to human activity and rest because it produces inaudible, low-frequency vibration that can be sensed by the body. Furthermore, certain types of scientific and industrial equipment are sensitive to vibration, even at frequencies that are imperceptible to humans. Annoyance due to vibration occurs at much lower levels than damage to the building; therefore concern often is human annoyance.


Building Vibration:

Human activity such as people walking and equipment within a building can set the building structure in vibration. In new to be constructed projects the building structure is analyzed to structural vibration using finite element analysis. Modifications to the structural design are incorporated during the design process so the vibration is compatible with a specific building use. Typical concerns would be people walking on upper floors with sensitive medical or scientific equipment. In existing structures the approach is to measure the annoyance vibration levels along with the natural frequencies of the building. Building structural medications are then based on the measured data. In our role as consultants we perform finite element analysis using our proprietary input forces developed over the years.

Ground-Bore Environmental Vibration:

Ground-bore vibration is vibration that travels through the ground and is received in nearby structures. Major sources include trains, heavy vehicles, construction activities, heavy equipment in industries. The effects of ground-borne vibration include fellable movement of the building floors, rattling of windows, shaking of items on shelves or hanging on walls, and rumbling sounds. In extreme cases, the vibration can cause damage to buildings. Building damage is not a factor for normal transportation projects, with the occasional exception of blasting and pile-driving during construction. Annoyance from vibration often occurs when the vibration exceeds the threshold of perception by only a small margin. A vibration level that causes annoyance will be well below the damage threshold for normal buildings. Potential for negative impact from ground borne vibration must be evaluated at sensitive spaces, such as hospitals, laboratories, and dwellings. In our role as consultants we identify potential sources, receivers and soil transmissibility and develop solutions for reducing the transmission.

Equipment Vibration:

Vibrating equipment such as fans, pumps, and transformers can set a structure in motion or transmit vibration to structures nearby. Solutions are commonly based on vibration isolating the equipment, keeping in mind the seismic requirements. In our role as consultants we identify potential equipment, evaluate the receiver, mounting conditions and the transmission path and develop vibration isolation for the equipment.

Audio Visual Design combines the disciplines of Acoustics, Psycho Acoustics ( How the human ear perceives sound )Optics, Networking, Electrical Engineering and Computer Science to design and specify systems that optimize the listening and viewing experience. VSA provides Integrated Systems. To “Integrate” means to unify. Merely specifying excellent equipment may not meet this requirement, if the intended user is not a trained audio visual professional. If the intended user cannot understand and easily use all functions of the system then the goal has not been met. We generally work with Architects and other Consulting Engineers, utilizing Computer Aided Drafting to ensure that the system is thoroughly integrated into the building documents.

VSA India is totally committed to the design of Audio Visual systems that meet the specific needs of its’ clients. Our expertise and experience includes, but may not be limited to designs for

Architects, building owners, and facilities managers are faced with complex and costly issues when considering Audio Visual systems for their projects. VSA provides consulting and design services; we do not sell, manufacture, or install equipment and have no alliance with any brand. Therefore, recommendations are made solely with our client's interest in mind.