Soundproofing

Soundproofing is any means of reducing the sound pressure with respect to a specified sound source and receptor. There are several basic approaches to reducing sound: increasing the distance between source and receiver, using noise barriers to block or absorb the energy of the sound waves, using damping structures such as sound baffles, or using active anti-noise sound generators.

Soundproofing affects sound in two different ways: noise reduction and noise absorption. Noise reduction simply blocks the passage of sound waves through the use of distance and intervening objects in the sound path.

Noise absorption operates by transforming the sound wave. Noise absorption involves suppressing echoes, reverberation, resonance and reflection. The damping characteristics of the materials it is made out of are important in noise absorption. The wetness or moisture level in a medium can also reflect sound waves, significantly reducing and distorting the sound traveling through it, making moisture an important factor in soundproofing.

Soundproofing Materials
Looking for soundproofing materials, advice and resources? You’ve come to the right place. Soundproofing Noise Control is your ultimate soundproofing solution. We have a full range of soundproofing materials to fit any need at the lowest prices. No matter what your sound proofing requirements involve, we can help you get the best possible results.

We carry all industry standard sound proofing materials as well as hard to find sound proofing materials such as stud and joint isolators, dBA sound absorption panels and much, much more. Why spend time looking through multiple websites with limited selection when you can find all the sound proofing materials you will ever need at All Noise Control?

Contact our soundproofing experts for advice on which products will work best for your situation or look through our extensive selection of soundproofing resources that will answer some of the most commonly asked questions. Whether you are building a studio, constructing a recording booth or simply trying to eliminate outside noise, we have the professional products and experience in the sound proofing field that will help you complete your next project.

Within the industrial markets noise barrier controls are a completely necessary acoustic material in battling noise control and noise safety issues.

Do you need to solve any of these issues?

•Equipment Noise
•Meeting OSHA & Worker Safety noise requirements
•Industrial HVAC/Piping Noise
•Heavy Construction Noise
•Generator Noise & Vibration
•Water Plant & Treatment Facility noise (generators, piping)

Industrial noise is a global, large scale problem effecting our environment and safety of the community. Not only meeting legal requirements let alone providing your workers and the surrounding community with effective noise mitigation solutions are critical. Solving your Industrial Noise Control problem with our industrial barriers can be a complex task, which ALL Noise Control can simplify for you.

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Soundproofing

Sound insulation is the process of soundproofing an enclosed space, such as a room. This type of insulating activity is usually employed when there is a need to keep sound from filtering into or out of the space. Sound insulation techniques are often used in business settings, as well as in multi-family dwellings like duplexes and apartment buildings.

In order to prevent background noise from interfering with the recording process, singers and musicians create their vocal and instrumental tracks in a soundproof recording booth. Because the booth prohibits the introduction of sounds from outside the space, there is nothing present to distort or interfere with the quality of the recording. The audio tracks containing vocal performances and the various music tracks are captured exactly as the performers hear them.

In living space, sound insulation normally involves the installation of insulation in walls, under floors and above ceilings. This can be especially important in apartment buildings and other structures where people live in close proximity. The inclusion of the insulation between apartments to the side, above, and below helps to ensure all the residents enjoy a measure of peace and quiet, even when others in the building are playing music or having a party.

In an office setting, it is not unusual for the individual offices of managers to be insulated for privacy. This makes it less likely for confidential discussions between an employee and a manager to be overheard by others working elsewhere on the floor or near the door of the manager’s office. In like manner, conference rooms are often treated to a sound insulation treatment, ensuring discussions taking place within that space are not overheard by others in the immediate vicinity.

Soundproofing insulation is a man-made material that is designed to absorb sound waves. This type of insulation is commonly installed in recording studios, meeting rooms and concert halls. The purpose of soundproofing insulation is to improve the enjoyment of the sound in the initial room through the removal of external noises, and to eliminate the traveling of the sound waves outside the room.

Soundproofing foam is a building material used to control the transmission and absorption of sound. This material can be used to achieve two distinct goals when it comes to sound control. First, it is used in homes and commercial buildings to block sound from the outdoors, keeping the interior of the space quieter for the occupants. Soundproofing foam can also be used to absorb noises in recording studios or theaters, which reduces echo and improves the quality of the sounds.

To understand how different types of soundproofing foam can be used, one must first understand how sound waves and noise levels are measured. The ability of an object to block sound is measured by its Sound Transmission Coefficient (STC) rating, which can range from 0 to 100. A wall with a STC rating of 50, for example, means that noise levels on one side of the wall are 50 decibels higher than on the other side. Sound absorption is measured using the Noise Reduction Coefficient (NRC), which generally falls between 0 and 1. This number shows the amount of sound absorbed by an object, and the higher the NRC value, the more noise is absorbed

A soundproof ceiling is a ceiling that has been designed to cut down on the noise that is transferred from overhead to the area below. A soundproof ceiling is a nice addition for people who live in apartments, but, surprisingly, many people who live in private homes are also interested in soundproofing their ceilings.

A soundproof door is a door which has been designed or retrofitted to cut out as much external noise as possible. However, a soundproof door is also very dependent on a well-designed frame, or sound can leak around the edges of the frame. Unwanted noise can also filter through walls and windows, which are an important consideration for people who are attempting to soundproof a room or building.

There are a variety of situations in which a soundproof door can be useful. Musicians and recording studios rely on such doors to keep sounds from getting out, both for the comfort of the neighbors and for the benefit of other musicians and recording facilities which could be compromised by sound leakage. Soundproof doors are also used to seal noisy rooms like boiler rooms and entrances to factory floors. People can also utilize soundproof doors to keep unwanted sound out of their homes.

Guide to Sound Isolation and Noise Control

Guide to Sound Isolation and Noise Control

It starts with a simple question, “How can I stop noise from going through this wall?” We have the answer, and it usually involves patching noise leaks in the floor, ceiling joists, windows, and vibrating structures that carry sound waves through solid material.

Noise leaks are air borne or structure borne. And contrary to what most people think, structure borne leaks carry more noise, because sound travels faster through dense material than air. So the problem of reducing noise is solved two ways, by constructing interweaving layers of mass and space. Mass contains the air borne sound, and space stops structural sound from traveling very far. So the basic principle behind sound isolation booths is to create a high mass wall, air gaps, more walls inside the wall, thus reducing noise transmission.

This sounds simple enough, in theory; however the details add up to a considerable amount of time and effort spent pinpointing leaks and problem spots. This is especially difficult to achieve with existing walls and structures, which necessitates custom built sound proof rooms, windows, and walls. In the medical and educational fields the latter route is usually required to meet the high quality and noise reduction standards.

If you plan on constructing a sound isolation booth or room, keep in mind any environmental problems. Don’t build near train tracks or heavy traffic areas. Sound vibrations from heavy equipment and cars can travel through walls, and a plan of action must be taken to avoid these pitfalls. Each scenario presents a unique solution, so discuss your options with a sound isolation specialist.

Also, remember windows and doors are equally important to the sound proof seal. They are a common source of sound leaks, so noise lock windows and doors are usually recommended. Laminated glass with multiple panes helps reduce noise, and they are safer and priced competitively to standard glass. Doors need to be sealed and cored, similarly to a bank vault door, with a sound lock.

Once you’ve covered all the details, like ceilings, walls, floor, windows and doors, make sure your lighting and electrical needs are evaluated as well. Make sure wiring doesn’t add any unwanted interference. By considering all potential problem areas, and discussing a plan of action, you’ll be well on your way to virtually sound proof room for residential or business use.

Check out our product pages at http://www.allnoisecontrol.com

Noise Control

The term “noise control” refers to both active and passive methods of mitigating unwanted sound in the environment. There are a number of reasons why noise control is an important consideration in both business and private settings, including personal well-being, environmental concerns and legislative issues. However, before proper noise control solutions can be implemented, it is first necessary to determine the source and the underlying causes behind its existence. Once this has been determined, it is then possible to establish an appropriate means of circumventing further problems.

Although there are a number of common sources of noise, the two most common are aerodynamics (the motion of air) and mechanical. Noise associated with aerodynamics occurs when concentrated air movement impacts a solid object and the force of that “air strike” creates unwanted vibrations. Effective noise control in these situations often involves modifying the source of the compressed air in order to minimize its impact on the surrounding environment. One example of aerodynamic noise control in a manufacturing setting is installing pneumatic silencers into the exhaust portion of control valves to reduce the velocity and impact of the compressed air flow. In this case, the pneumatic silencers help prevent unwanted noise by effectively neutralizing the source.

On the other hand, mechanical sources of noise involve the actual collision or interaction of physical components that come into direct contact with one another. Naturally, the impact of these materials creates friction. In turn, this friction produces vibrations which then manifests in the form of noise. It’s easy to see how this would be an ongoing concern in a manufacturing environment where heavy machinery is employed. This type of equipment, which consists of many moving parts, produces excessive noise due to the friction inherent to this type of system. As with aerodynamic sources of noise, the effective resolution to this problem lies in cutting it off at its source. The challenge then becomes to reduce the ensuing vibrations and the noise associated with them.

There are four main types of effective noise control. They are sound insulation, sound absorption, vibration damping and vibration isolation. Sound insulation involves the introduction of a noise-deadening material to the environment in order to prevent or reduce the transmission of the noise from its source to the receiver. Sound absorption is similar, except this approach employs an absorbent material designed to intercept the noise energy and transform it into heat. Vibration damping involves the mitigation of vibratory energy with solid materials (rather than air). Again, the objective is to convert that energy into heat in order to reduce its impact on the surrounding environment. Finally, vibration isolation involves the introduction of a physical barrier or break. The goal with this method of noise control is to separate the source of the unwanted vibrations from the surrounding environment. Again, the exact method of noise control employed will depend on the source and nature of the sound in question. Once this is established, the best method of noise reduction may then be determined and implemented.

Acoustics studies the sound and how it behaves in various environments

Acoustics studies the sound and how it behaves in various environments. Sound effects such as absorption, reflection, refraction or interference are also studied by acoustics. The broad acceptance of the term ‘acoustics’ refers to all the aspects of sound. Until not long ago, the notions ‘acoustics’ and ‘sound’ referred to waves and elastic vibrations that humans could hear. However, in the twentieth century, the development of technology and science has led to the broadening of the field of acoustics, in that it now comprises aspects not directly related to the hearing process, such as intensities and frequencies which are above or below the audible limits of humans.

When speaking of sounds, most people think of the vibrations in any type of medium, which can cause the sensation of hearing. Any unwanted sound is perceived as a noise. The term is definitely subjective, since what is music for one person can very well be noise for another. When such unwanted sounds are excessive, their effects can be destructive, which is now known by the name of noise pollution. Adverse noise effects fall into three categories, physiological, psychological and communicational. Unfortunately, there aren’t any known and adopted remedies for the last two categories. Noise pollution is a complex problem and surveys show a disturbing fact, that noise levels are continually rising in cities.

As far as the sounds inside buildings go, we can speak about two main ways of transmission. Firstly, the sound emanated from either human activity or mechanical noise inside the building travels airborne through walls, ceiling or floor. Sounds from human activity include loud voice or amplified systems. Mechanical noise refers to the sounds produced by elevators, generators, air conditioning systems and so on. Secondly, interior sound can be transmitted not through air, but through the building itself. The former is easier to abate than the latter through wall or ceiling assemblies which meet certain established performance standards.

Statistics say that millions of employees are exposed to noise in the office, and therefore are subjected to all the risks that come along. Work-related stress and accidents which occur because of masked warning signals are just two of them, not to mention the lack of productivity and efficiency on the part of the office workers. Noise represents a safety issue, butt also a productivity issue for the employees. The office should be a quiet place to work and an office with good acoustics will provide the employees with the ability to concentrate and not be distracted. Reducing the intensity of sounds is called soundproofing. Soundproofing can be accomplished in a variety of ways. The distance between the source and the receiver could be increased, sound wave energy could be blocked or absorbed by means of noise barriers, sound baffles could be used as damping structures, or antinoise generators could be activated. With soundproofing, noise can be affected in two ways: it can be either reduced or absorbed. Noise reduction implies blocking the sound wave passage with intervening objects. The absorption of noise refers to echoes and reverberation being suppressed.

The office environment is a place for many acoustic challenges. If sound levels in the office affect efficiency and productivity, the good news is that there are solutions for office noise control. There are many soundproofing materials which improve the sound quality within the room and eliminate the transfer of sound from one room to another. Office noise control is a must for a quiet environments in which employees can concentrate and be efficient in their work. Soundproofing materials play an important part in office noise control, since other methods have failed to show efficiency. Not only are soundproofing materials a useful barrier in blocking noise, but there are also excellent in appearance. Soundproofing materials add an aesthetical touch to your place of work, not to mention that they are fire rated.

For more related subjects about Soundproofing or for more resources regarding Office Noise Control please review http://www.allnoisecontrol.com

All Noise Control Sound Curtains

All Noise Control manufactures heavy duty, weather resistant Sound Curtains for outdoor applications. We offer modular panels that can be used for short-term or temporary applications such as construction sites or drilling operations as well as long-term permanent applications such as HVAC systems, dust collectors and generators.

Q: What is a Sound Curtain ?

A: All Noise Control Sound Curtains are modular flexible noise reduction curtains. Typically 54″ or 48″ wide by any height required, with grommets at the top and Velcro seals along the edges to join adjacent panels together.

Q: How Does a Sound Curtain Work?

A: All Noise Control Sound Curtains combine flexible loaded vinyl noise barriers with quilted fiberglass Sound Absorbers. Thus, they block the part of the noise on the outside of the sound curtains and absorb the noise on the inside of the Sound Curtains.

Q: Where do I get Sound Curtains?

A: All Noise Control has a network of factory trained distributors in major cities or metropolitan areas across the U.S. We also work directly with Acoustical Consultants, Engineers and Specification writers to assist in the proper All Noise Control products.

Q: Do Sound Curtains really work?

A: All Noise Control submits its product to independent labs for acoustic testing per rigid ASM standards. These tests quantify the products ability as a noise barrier-expressed as an “STC” Rating ( Sound Transmission Class ) Its ability as a sound – absorber expressed as an “NRC” rating ( Noise Reduction Coefficient )

PROPAGATION OF SOUND

Sound is propagated in air, much like blowing up a large balloon, which expands equally in all directions.

For sound to be generated and heard it must have a source, a medium through which to pass and a receiver.

For purposes of this discussion we will assume that we are talking about normal speech communications. The source is the speaker’s voice, the medium through which it is transmitted is air and the receiver is the listeners ear.

As sound is generated by the speaker’s speech, the speakers voice acts like a diaphragm which causes the molecules in the air to pulsate back and forth while moving in all directions, at a speed of 1130 ft per second (770 mph).

A single segment of a sound wave may be characterized as pressure compressions and rarefactions.