Tag: acoustical sound proofing

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How does room construction materials affect sound?

How does room construction materials affect sound?

Unbeknownst to a majority, the materials used for constructing and decorating a room plays a pivotal role in controlling the level and quality of sound in the room.
Have you ever been to a public felicitation or any program where you had to perk your ears to understand what the speaker was saying because the sound was muffled and unclear? Or you went to watch a movie in a cinema hall and the sound system was killing your mood because of echoes? These are day to day examples of how inadequate or excessive use of acoustic materials with different properties affect the quality of the sound.
When sound incidents on a surface, a part of it is absorbed by the material and a part of it is reverberated off the surface. The reflected waves bounces off of other surfaces until it dies down. The amount of sound reflected or absorbed depends on the acoustical properties of the material. Different materials possess different acoustical properties. Some of the materials are good absorbers of sound and some others reflect sound. Materials that absorb sound causes the sound to come out as dull and dry whereas the materials that reflect sound makes it sound muddy, and blurry. The usage of materials in the right way will result in the good quality of sound. Let us consider an example and analyse how this works.
Wood as such is not a good absorption material and hence its sound insulation properties are not particularly good. Dense wood structures reflects sound. This property of wood can be a boon or curse depending on how we utilize it. A person unaware of this property of wood may end up using it in such a way that it causes unwanted reflections reducing the quality of the sound but by the one who understands, the reflection property of wood can be utilised in concert halls and musical instruments. By using multi-layered constructions or placing porous absorption materials behind a wooden board or panel in addition to an air gap, sufficient amount of insulation can be achieved in wooden buildings. This applies to every material. Materials like cushions and curtains absorb sound whereas reverberative materials like wood and glass reflect sound until it dies off. They should be used in a way that they absorb sounds to avoid echoes.
To put is simply, the type and amount of materials and even the positioning of them by an interior designer affects the quality of sound in a room. A skilled architect or interior designer will consider the acoustics of the building or room in mind while working. Accordingly, materials and furnitures will be selected for the construction suiting its purpose. On the other hand if you are moving to a new space and you want to alter the acoustics of the building, changes can be made accordingly with the help of an acoustic engineer.
Acoustic engineers are professionals with knowledge in the field of acoustic engineering and soundproofing. ‘Acoustical surfaces’ is a leading company in the field of soundproofing and noise control. With over 25 years of experience and 400 different materials to be chosen from, customer satisfaction is with no doubt, guaranteed.
Visit http://acoustialsurfaces.in for more details.

Outside Noise Control Tips with Acoustical Products and services

Outside Noise Control

You may be thinking of outside noise control when you don’t’ want to be disturbed by the noise from outside. Noise is an annoyance that can make life upsetting and study, work, or rest impossible. In case you’re tormented by a noise issue, the least complex methodology is to kill the sound at its source, however sometimes that is simply impossible. In the event that you live near a building site, a nightclub, or noisy bar, or you have an elderly, careless neighbor who plays the TV to the max, you cannot do anything to reduce the sound. Given below are some of the tips for outside noise control.

Seal Off Your Door

In case you’re disturbed by the noise in the corridor outside your flat, the door is unquestionably the primary spot to search for an answer. Irrespective of the fact that your corridors are inside, install weather-stripping for helping to keep noise out. Additionally, an unnoticeable door sweep attached to the base of the door will help with soundproofing.

Move Your Furniture

Trust it or not, where you put your furniture can play an incredible arrangement into the amount of noise you hear from the flat adjacent or even the home close-by. For example, setting a thick shelf against the wall can suppress noise. Or, if you know that your neighbor’s front room is right nearby to your bedroom, then it will help if you place your bed against a wall further away.

Insulate Your Floor

In case you’re living in a flat, then your best choice for floor protection is carpeting (if the owner permits it). If not, attempt a substantial, thick area rug. This will mute sounds originating from downstairs. If you possess the space, then you can really protect the floor beneath the base boards, which will do wonders for shutting out noise originating from the neighbors downstairs. It is tricky to install it, so it’s best to handle with a helpful friend or hire an sound expert.

Curtains Can Help to control sound

If your windows are layered with thick curtains, an insulating buffer will be added between you and the window. This fix is very simple and quick.
Fill in Holes and Cracks
If there is a noisy street below your apartment, the wall facing that side of the building has to be checked. Any leaks in air are also going to be leaks in sound. Check around doors and windows, gaps between your power outlets and drywall.
Hang a Fabric Wall
In case you detest the late-night music from a nearby neighbor, your shared wall has to be attacked. Not with a broomstick, but rather with fabric. Hang draperies or a beautiful fabric on the disturbing wall—one end to the other will work best, however even an enriching fabric panel will help to suppress the noise.
By following the above tips by Interior game, you can achieve outside noise control to a great extent. Interior game offers imported acoustical soundproofing products from USA at Local prices. Interior designers in the company offer free site visit and guidance on sound problems inside and outside.

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Noise Control at School – Are Our Kids missing their Education?

Noise Control at School – Are Our Kids missing their Education?
This article is about acoustical problems related to educational buildings, how things have gone wrong and how to mitigate the situation by noise regulations. To give a simple example, assume that you are preparing for an important subject and the textbook that you are reading has several serious omissions which leave you in despair. Of course, you will go to the book seller and demand a refund. Similar situations exist in acoustically poorly designed classrooms. Every day this problem is faced in numerous schools all over the nation. Words of teachers do not reach the students and they miss out important words of their teachers in classrooms and lecture halls. There is no ‘refund’ possible in such cases and year after year students continue to suffer.
Noise Control Problems
Problems due to high noise levels could be because of student indiscipline but there are other reasons also for high levels of noise in class rooms. Two main acoustic problems are discussed below:
Excessive Noise and Reverberation
Both these problems are direct causes for speech interference – and speech is the critical element in teaching necessary to be preserved in education. Even the smallest of whispers can get magnified due to too much of reverberation creating a mess of sound caused by continuous reflections off the surfaces of the classroom. This raises the overall sound level of the class room forcing the teacher to raise his or her voice even more so that he or she is heard. The raised voice of the teacher further makes the situation worse causing more reverberations and further loss of clarity of speech. Using a microphone can worsen the reverberation problem. If classrooms are not properly isolated, it can also lead to excessive noise. Open classrooms are not a solution either, because disturbing sounds from an adjoining class room can easily enter the neighboring class.
Noise Control and Young Students
Noise control is important for hearing impaired students as well as normal ones especially young students. In the formative stages of a child this is all the more detrimental. Missing even one word in the class can affect the child’s learning progress. Even older students need better noise control. For foreign students studying in universities with English as medium of instruction it is very important that the lecturer’s words are intelligible and for that noise control is important.
One of the reasons why the classrooms are in such bad state is because those responsible like architects and educators are unaware of noise problems and the solutions. The problems would not have arisen if proper materials and methods for noise control were used at the early construction stages of the buildings. Our students would have been benefitted with better learning environment and quality of education paving way for undisputable benefits both socially and economically.

How to Control Sound? Sound Control Treatments and soundproofing Products

Overview of Sound Control

Having a minimum knowledge about the different materials and methods available for improving sound quality in an enclosed space is an essential input for correct design and planning of an enclosed space like a room or public space. For those involved with sound quality control for providing a better experience for guests and residents or occupants who enjoy the facilities in their project, the following guidelines will be helpful.

Sound Control Treatments

Poor sound quality is usually the result of uncontrolled reverberation or echo. The reason is that in most cases the rooms are built with materials that have very high reflective properties. Examples are concrete, drywall, wood, metal, glass etc. Therefore we have to use sound control materials of high quality.
The sound control treatments for improving the quality of sound in any room can be grouped into four categories.
Absorptive: The way to eliminate excess echo is by absorbing frequencies of the middle and higher order.
Reflective: if you find that a room is too dull, then installing some reflective materials will help to brighten it.
Diffusive: Adding diffuse materials we can remove direct reflections and get a balanced sound.
Bass Traps: Bass traps help to absorb or remove undesirable frequencies of the lower order bass resonance. You get better overall quality.

Excessive Reverberation

Sound energy coming out of the speakers or other sources collides with walls, ceilings, and floor inside a room. If the surfaces are untreated, the sound waves falling on them will get reflected. If you do not control them, the room will sound as though it is a cave. The room will not be ideal for a music concert or for intelligible speech.

Excessive Padding

Over treating a room by completely covering the walls with acoustic materials will not help. It is like untreated wall. Such over-protected rooms will have less brightness. Sound becomes dull and lifeless. Both are not desirable.

Rating of Sound Control

The effectiveness of sound control materials is most commonly rated by NRC (Noise Reduction Coefficient) measurement. Like in the case of STC (Sound Transmission Class) ratings the focus of the NRC ratings is on frequencies in the range 125Hz and 4000Hz. While the STC ratings refer to the controlling of sound, NRC ratings deal with the ability of the acoustic material to absorb sound. Noise Reduction Coefficient (NRC) varies from zero (fully reflective) to 1.0 (fully absorptive)

Absorption Coefficient
The absorption coefficient indicates the efficiency of sound absorption of a material. If a material absorbs 75 percent of the sound energy then the absorption coefficient is 0.75. That means 0.75 absorption units per square foot. If a material has 1.0 rating, no sound is reflected back and it is very good for sound control.
There are so many soundproofing materials in the market claiming varying levels of sound absorption properties like open cell foam products. Glass Fiber Boards are reported to be giving the best value for the money and effort needed to install.

Interior game offers Quality imported soundproofing products and materials from USA. Interior designing and decoration with designer soundproofing materials will give you the best appearance and quality sound from your room or hall. Blocking outside noise and traffic sound can be done by the exterior soundproofing materials. Call us for quality soundproofing products and materials.

Soundproofing Polyurethane Foam Insulation for Industries and offices

Polyurethane Foam Insulation

As far as insulation of sound is concerned polyurethane foam insulation is used in two different forms- as a spray foam or as a solid foam panel. Polyurethane is the basic material from which foam is made. It possesses the best qualities of rubber and plastic. In the most common and popular forms we can see foam used in cushions of furniture, padding used in seats and upholstery of motor vehicles like cars. Foam Panels are like batts or rolls of insulation in their application and in the way they are installed. As a spray polyurethane foam is applied to insulate a wall completely from moisture and air.

Soundproofing effects of polyurethane foam

Polyurethane foam insulation when used as spray foam serves as a better sound barrier when compared to batts as it seals air gaps so completely that sound does not pass through the sides of beams. This also prevents the beams from vibrating which helps in dampening the transmission of sound.
Polyurethane has the property that makes it a good filter of medium frequencies like loud music and conversation. The open cell foam which is of lesser density is more suited for inner walls to reduce noise. For inner walls, using the less-dense open cell foam may be a better choice to prevent noise. But it is not a good water resistant and so additional moisture barriers may have to be installed.

Supply and Installation of Polyurethane Foam Insulation

Foam panels for Polyurethane foam insulation are available in different thicknesses and densities. For foam installation, the panels are sandwiched between the inner walls and outer walls or it can be cut to the required size and assembled like a frame as in the case of butts. Polyurethane foam panels can be handled safely as it does not give out smoke or particles. No special tools are needed as it is simple to install. But the spray foam is a chemical and requires the two components to be mixed carefully and so needs a professional to handle it. The spray foam, when it is sprayed gets into the cavities and expands to 100 times its initial volume. The chemical action that follows helps to seal the gaps in the wall effectively stopping leakage of air.
Spray acoustical foam is used for both thermal and acoustic insulation. But it is one of the costliest treatments, the cost being 3-4 times higher than that for butts. At the same time its performance level is very high as an insulating method. It is also dangerous and has to be handled carefully. Safety precautions must be taken. It must be done by qualified experts only. Do not try it yourself. Once installed, spray foam of polyurethane foam insulation is not easy to be removed properly.

Industrial Acoustics improve the Productivity and health of the employees

Productivity Improved By Acoustic System

Though there are many methods to improve productivity, improving productivity by acoustic system is a new and welcome trend. It is well known that office space is at a premium in cities, and companies are trying to cut down the work place area requirement to beat the phenomenal cost increase. This results in crowding of work area with lesser and lesser space per employee. There is more and more noise in work place and distractions for those working leads to lesser productivity, dissatisfaction and errors in work. According to one report an employee takes 23 minutes to get back his concentration in work once he is distracted. The solution to improve productivity is a better acoustical system.

How it is done by acoustical products

When ambient background noise in very low, and with no acoustic panels or walls around, the conversations between employees can be heard all over the work area and with several people talking at a time, it will be only a clutter of unclear noises leading only to distraction and stress. This is evident in several offices today. We can improve productivity by acoustic system with some meaningful changes in acoustics of the open office. Efficient acoustical ceiling tiles having a Noise Reduction Coefficient (NRC) of at least 75 can absorb considerable sound in the area. In spaces with noisy HVAC (Heating Ventilation and Air-conditioning) sources, the high rated ceiling tiles are not recommended. They are also not ideal for offices and conference rooms where mineral tiles can be used to control sound. Once you install a good acoustic ceiling a sound masking system can be added which will help in reducing sound levels considerably. Sound masking system is another technique for improving productivity by acoustic system. It lets in a pleasing background, sound that will negate the nearby conversations. Sound masking system is made up of a network having few speakers fixed above the ceiling or hung from it. When properly installed the sources of sound cannot be identified.
In an open office environment, like you see in many IT organisations properly designed and tuned sound masking system will in effect minimize the distance from sources of sound at which conversations are clear and understandable. This distance is known as the Radius of Distraction. Generally as measured in many offices, the radius of distraction is around 30 to 60 feet. All the conversations taking place within this radius will distract the employees in that space. When sound masking is added, this distance, that is the radius, is down to 10 to 15 feet. With this change, employees can communicate with each other freely.

Also their conversation does not disturb those around them. Office administrators have started realizing the importance of work place productivity to improve employee morale and reduce costs. The productivity goals can be met more comfortably in a better noiseless environment. Though the current trends in work places do help to cut costs, planning for a better and more performance oriented work place by improving productivity by acoustic system will go a long way in productivity improvement.

Productivity Improvement in Commercial Spaces by Soundproofing Materials

Productivity Improvement in Commercial Spaces by Soundproofing Materials

Improvement of productivity in commercial spaces by soundproofing materials is important not only to increase the output and profit of the company but also for several other reasons including employee health. Today the trend in many offices and commercial establishments is to have open work areas without partition walls in between. Employees are exposed to distraction sounds like conversations, and reflective noises from machines like echo or reverberation and other noises. Apart from causing distractions these noise problems make communications difficult. More important, high noise levels affect employee productivity, headaches, and customer dissatisfaction. Employers must realize that these problems can be overcome by commercial noise control methods when such problems arise.

Methods of Acoustic Treatments

Installing acoustic panels in commercial offices similar to news rooms will improve speech clarity and also will absorb any reflective noise. Open offices can install whisper wave baffles to bring down noise levels. Office communication and productivity will be improved. Retail stores can use acoustical ceiling tiles to control high noises. The ceilings will look very attractive also. Another method for productivity improvement in commercial spaces by soundproofing materials is the use of fabric panels that provide good sound absorption as well as aesthetics. Irritating echo and back ground noises are also problems in case of retail business establishments. Here acoustical panels and ceiling tiles can be used to reduce the noises. Sound curtains provide maximum sound control and noise reduction. The materials used in this case are sound absorptive and noise barrier types used as a combination.

Benefits of Installing Acoustical Products in a Commercial Space

Steps taken for productivity improvement in commercial spaces by soundproofing materials as above will result not only in many benefits to the employer as well as the employees but also to increased satisfaction of the customers. For the employees and customers the new atmosphere with soundproofing will reduce stress. In the resulting quiet and relaxing environment the communication between personnel become more effective. There is clear improvement in the intelligibility of the words spoken. The improvement of the health of the employees and the stress-free environment lead to better productivity.
Conclusion
There is no doubt that the health of the employees and that of their families are most important for better productivity. Every responsible employer should recognize this priority. Only a healthy, satisfied and happy workforce can contribute to a successful business with high productivity in the long run. A large percentage of business running costs, is towards employee salary and other costs and benefits. This being the case even a small improvement in the health of the employee and resultant productivity can boost the financial savings and productivity of the organization. Productivity improvement in commercial spaces by soundproofing materials is possible with better management of all aspects mentioned above.

Interior Game offers Interior designing tips and guidance for the residence interiors, hotel interiors and restaurant interiors, palace interiors, commercial establishment interior designing and decoration, office interior designing and construction, showroom interior designing and construction with painting and furniture decoration, Wall paper fixing in interior designing for the homes and the commercial places, function halls, Auditorium interiors, seating arrangements etc. Painting and plastering works will be done by the company.

Office Space Acoustical soundproofing – How to Improve the Productivity of Staff

Office Space Acoustical soundproofing – How to Improve the Productivity of Staff

An important factor in the advancement and success of a company is a comfortable noiseless office space. In their workplace, per week employees mostly spend up to 40 hours WITHOUT NOISE POLLUTION. It is needed to retain a level of productivity that is high and to provide space where people can feel free to use.

Some Ideas to Consider on soundproofing

• Companies like Google, Disney, and Apple use cleaning services. They have a belief that the spirits of employees are lifted by a clean office and workers are encouraged to be organized inside their personal work space. It is found from studies that stress is decreased when an office is organized.
• Most of the time of people is spent at the office. Productivity can be improved by interior designing and decorating your office space.
• The shade of the interior wall can add a specific vibe to the atmosphere and motivate vitality. Remember that blue and green bring out a cool and quiet effect and rouse “rest”.
• Proper storage should be provided for everything. Efficiency will become less in a cluttered area and is not as much productive. More time will be spent by a worker in trying to locate documents. Adding filers, cabinets, and shelves can lessen clutter.
• It is needed to lighten your office. Work cannot be done lacking proper light. Class can be added to your office using decorative lights.
• Plants help in concentration, boost staff well being, and increase productivity by 47% at work according to research done by scientists. Plants are very effective at removing contaminants.

Office Interior Solutions

The format of your office and the use of office space can influence the productivity of staff. Ask yourself the following questions:
• Is there sufficient space for moving between the desk and other areas?
• Are your working areas and office organized and clean?
• Are softened acoustics provided by the office for allowing good concentration?
• For improving alertness is there sufficient airflow?

Employees are one of the Biggest Assets

An absence of individual space adds to stress among staff. In crowded offices, an absence of office space is the main aspect for stress. By working in teams, a few people are more productive than working individually. Every individual ought to have adequate office space that permits him or her to become focused, organized, and valuable. It is an asset to have a productive laborer.

Plants, lighting, wall colors, lighting, and furniture all play a crucial role in the aesthetics of your office space. In any case, the employee is the main individual who can decide the correct aesthetic direction for his or her work space. Permit the worker to customize his or her office space. Workers who are happy are productive.

Interior game offers imported acoustical soundproofing products at Indian price. Acoustic Wall panels, Acoustic doors, Acoustic windows, Acoustical curtains, Acoustical furniture, Acoustic paints, Acoustical fabric, Acoustical surfaces, Soundproofing technology, Soundproofing experts, free consultation on soundproofing etc.

Interior designing and decoration Quick Guide to Sound Isolation and Noise Control with acoustic products

Quick Guide to Sound Isolation and Noise Control

Acoustic treatment of any space will always face the situation wherein you have to find a solution for stopping noise from passing through a wall. And the typical solution involves sealing of leakage of noise through gaps between doors and floor, windows and ceiling joints as well as vibrating structures transmitting sound waves across solid material.

Sound Isolation and Noise Control

Noise leaks can pass through air or through structure. And in contrast with popular belief more sound leaks through structures faster because sound passes through solids than through air. Therefore we have two methods for solving the problem of sound reduction, by building alternate layers of space and mass. While space restricts the travel of structural noise, mass suppresses the noise. So the fundamental principle of isolation of sound involves creating a wall of mass, air gaps, and more walls thereby lessening noise transmission. This may look simple only theoretically; but if you go in detail through the matter, it will take up a significant amount of ground work and time before we can identify the exact points of sound leakage of sound and problem spots. And if you have to accomplish it with an existing structure and walls, it is going to be very difficult because it makes it necessary to have made-to-order sound proof rooms, walls and windows.

Environmental Issues noise pollution

In case you are planning to build a sound isolation room or booth it must be kept in mind you may have to deal with environmental problems. Avoid building your structures close to areas of heavy traffic or railway tracks. Sound vibrations from heavy vehicles and cars can be transmitted through walls, and hence there must be an action plan ready for meeting any eventual short comings. Every individual situation has its own typical solution. So it is important that you discuss the possible options with a sound specialist who has experience in solving sound isolation problems.

Treating Doors and Windows

Also, it is to be remembered that windows and doors are important in soundproofing. The problem of sound leaking through gaps in doors and windows is quite serious. So windows and doors must be treated with sound proof seal. It is recommended that noise lock doors and windows may be installed. Multiple glazed windows, with laminated glass will help to lessen noise considerably. They are priced competitively when compared normal glass. They are safe too. Special sound lock doors which are cored and sealed like bank vault are recommended.
After attending to all the details of walls, ceilings, floors, doors and windows you must ensure that your electrical requirements like lighting in interior designing and decoration are estimated. Particular attention is to be paid to wiring to avoid any unnecessary interference to noise control work. Once you have considered all the possible problems and discussed your plans with interior designing sound specialists, you can proceed with your next step, that sound proofing of your room or business.

Office interior designing and decoration Raised Access Floors for convenience

Office Raised Access Floors for convenience

Raised floors also known as raised access floors in interior designing and decoration comprises of an elevated load bearing structural floor panel unit supported by vertical pedestal which is adjustable. The height of the floor can be up to 4 feet and the space between the floor panel and the original floor is used as a concealed chamber for housing and distribution of electrical and mechanical services. Such elevated floors are very commonly used as command centers, computer rooms, IT data centers, and in many modern offices where there is a need to route supply lines like cables and wiring for data, telecom and electrical supply. The height of the flooring can be such that maintenance staff can comfortably walk or crawl beneath for attending to breakdown or other related work. Lighting points are provided where required. The floor panels are easily removable to gain access to the floor below.

Parts of a Raised Access Floor System

Floor panel of raised access floors are usually of size 24″x 24″. They are made from steel-covered particle board or a steel panel having cement internal core, or simply hollow. Panels are covered with carpet tiles, marble, high-pressure laminates, and stone. Computer rooms and laboratories can have tiles with artistic finishes. To save money, panels with cement top are used in offices, lobbies, hallways, casinos and museums.
Pedestal is the adjustable vertical structure that supports the floor panels. They are fixed to the floor below using some adhesive or mechanically bolted. The height of the pedestal assembly is adjustable by about 1½” to allow for deviations in the sub floor so that the raised floor can be made level. The pedestal has a grid head to facilitate panel fixing.
Stringer connects the pedestals of raised access floors together horizontally and provides the lateral support needed for rigidity when the structure height is to be increased.
Where is a Raised Access Floor Used?
Raised access floors in interior designing and decoration have become a common feature today in many organizations where there is need for raised levels on account of their activities. Examples include: financial and insurance offices, call centers, data processing centers, large computer room setups where voluminous processing of electronic data is done, e.g. financial information, customer information, and telecom exchanges. Raised flooring is also installed in schools, universities, libraries and major archive areas. Retail facilities like department stores have started increasingly using raised floors coated with special finishes.
Benefits of Using Raised Access Floors
Raised access floors have the following benefits: You can easily access the service points of power, telecom, and data services. This is important for modern buildings having large volume of these services. The underfloor space serves as a large passage for HVAC systems. When there is need for frequent changeover of offices to new occupants the layout needs a churn and that would mean redirection of services. Raised access floors provide easy access to the services necessary for maintenance, upgrading, rerouting etc.