Environmental acoustics Ramboll uses a range of techniques including noise and vibration monitoring, environmental impact assessment and noise mapping to establish the ambient acoustics of a site. Our extensive knowledge and range of integrated design principles allow us to propose effective acoustic control solutions, while identifying potential impacts.
We have proven track record in ameliorating the noise and vibration from transportation, construction and environmental sources.
Our multidisciplinary team works with the latest measurement equipment, digital modelling, noise-reduction techniques and design processes for a result that balances the needs of clients, users and the local community. Pioneering modelling Ramboll is a pioneer of scale and computer modelling.
All our acoustic modelling techniques, physical and virtual, are used to assess the impact of changes and identify the most effective solutions. We developed SoundSpace, based on the industry-standard modelling software Odeon, which when linked to a loudspeaker array creates a 3D surround sound environment. SoundSpace enables the acoustic quality of a project to be evaluated at design stage, allowing decisions on possible scheme modifications. Ramboll part-owns and contributes to the development of Odeon, used to model the acoustics of spaces and to create auralisations.
Our services We provide a unique range of acoustic services that covers all stages of a project from planning advice to final inspection, including:.
It helps designers to model the noise and acoustics in spaces before they are built. It comprises a 1,seat concert hall, a seat theatre, a studio theatre and various ancillary break-out spaces. Bright ideas. Sustainable change. Worldwide Contact United Kingdom Denmark. When this noise level crosses permissible limits, it causes lots of problems for listeners. The other day, it was reported in newspapers that a senior political leader who had come in connection with a public function almost became deaf due to the piercing sound generated by fire crackers. Noise can be classified into two groups: air borne and impact noise.
AANTC The Aerodynamics Acoustics & Noise control Technology Centre (AANTC)
Air borne noise is transmitted through air as the medium while impact noise is generated from an impact on a structure. The effects of noise are many; its intensity depends on the loudness of the sound. Noise causes fatigue, irritation, loss of efficiency, and permanent damage to hearing. Experiments have indicated that sound levels of 90 dB and above decrease the efficiency of workers and sound of dB and above may even cause instantaneous rupture of the eardrum. Annoyance to any person on account of noise will vary depending on the nature of the noise, its steadiness, and whether or not it has a fluctuating frequency.
Attenuate unwanted sound and consider system impact.
The effects of noise can be reduced by adopting the following methods:. The building should be located away from the main source of the origination of sound. Hospitals, schools, auditoriums, residential colonies, etc. The location of doors and windows is also important. They should be provided in such a way so that there is no direct entry of noise inside.
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Machines which produce much noise should be provided with a bed of cork or rubber. Also insulation against noise can be obtained by providing impervious partitions.
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The frictional noise coming out of rotating machines can be reduced by proper lubrication. Providing resilient materials like cork, glass wool, rubber, etc.
Image: Flickr, Acapella: The Accoustics , angkorianboy. The behavior of sound plays a very important role in the acoustics of buildings. When a sound originates from a source, it travels in all directions through different mediums and strikes objects such as a walls, floors, and ceilings.