building acoustics Articles

  • Fine-tuning acoustic isolation in buildings

    ACCIONA Infrastructure is ranked among the leading construction companies in the world - and is recognised for implementing the most advanced and innovative technology.  As research and design is vital to keep the company at the cutting edge in relation to technological developments, ACCIONA Infrastructure created a team to analyse noise and vibration. Where traditional ...

  • World Class Indoor Acoustics

    On January 15th, 2005, the $440 million, new Copenhagen Opera House opened with a Royal Command Performance and the tones of Carl Nielsen, Donizetti, and Rossini. Likening the sound to the gift of a Stradivarius, the Royal theatres musical director was thrilled. It is a world class acoustic he commented, that at the same time is analytical, warm and round. Every subtlety, even the very quietest, ...

  • Acoustic and Insulated Sheeting

    Powerclad Acoustic and Insulated sheeting systems are insulation materials laminated to scaffold sheeting for temporary weather protection and containment applications. Powerclad provides an effective system for controlling noise on construction sites and conditioning the working environment in both hot and cold climates. The Flame Retardant grades are ...

  • World class acoustics on the waterfront

    This opera house balances the intimate and the very loud.” The guest conductors, opera directors, music staff and the chairman of the orchestra were equally delighted with the sound achieved. English consulting company Arup Acoustics, responsible for the design of the new opera house’s acoustics, chose ODEON modelling software for this and for many of its other major projects within ...

  • Thermal comfort, indoor air quality and acoustics: a conceptual framework for predicting occupant satisfaction in sustainable office buildings

    The authors propose and test a conceptual framework that delineates occupants' satisfaction with thermal comfort, indoor air quality, and acoustics conditions via post-occupancy evaluation (POE). A self-administered, internet-based, POE questionnaire was administered in two office buildings that were designed and operated as county service centres in a Midwestern state. A series of multiple ...


    By Inderscience Publishers

  • New mandatory acoustic testing in UK schools

    As a result of campaigning by the National Deaf Children’s Society,The Department for Children, Schools and Families, has recently announced a set of guidelines to improve acoustics in schools in England and Wales. Whilst acoustic standards in schools have been regulated by Building Bulletin 93 (BB93) since 2003, there is currently no mandatory requirement for pre-completion testing to ...

  • Sarakasi Theatre - room acoustical measurements and modelling

    Measuring Reverberation Time and Speech Intelligibility using Balloons and an MP3 Player as External Sound Sources The non-profit organisation Sarakasi Trust owns a theatre in Nairobi Kenya, inside the former Shan Cinema. In this theatre, youths from the city slums are trained to be acrobats, so that they learn how to make a living without having to resort to crime. Shows and concerts are ...

  • Measuring the Dispersion Coefficient with Acoustic Doppler Current Profilers

    Abstract: A method is evaluated for estimating the longitudinal dispersion coefficient K from velocities and bathymetry measured with an acoustic Doppler current profiler #1;ADCP. If shear dispersion controls the mixing, the dispersion coefficient can be estimated from measurements of velocity and depth in a cross section. The dispersion coefficient has typically been measured by costly and ...


    By Teledyne RD Instruments

  • Filming Low-Frequency Structure Born Noise With Acoustic Camera - Case Study

    Problem An apartment complex consists of five floors, with several apartments over four floors, and an attic on the top floor. In the attic an air circulation system is installed to provide circulation in the bathroms of all the apartments in the building. The circulation system is driven by an air fan distributing air through pipes going to all apartments. The air pipes are cemented in ...


    By Norsonic AS

  • ESTECH marks twentieth year with new acoustic testing site

    Situated less than 40 km from the centre of Tokyo, the two storey building has a hemi-anechoic chamber, an excitation test room and an associated test preparation room. The excitation test room, which can be flexibly partitioned, contains two structural beds isolated from external vibration. And two cranes capable of lifting up to 2.8 tonnes, for moving heavy structures such as engines, tractor ...

  • RNLI Poole - Scarecrow Bio-Acoustic System installed at the RNLI in Poole

    Formed in 1824 by 'pulling together' the disparate sea rescue organisations based around the coast of Britain, the Royal National Lifeboat Institution is now one of the most efficient and highly respected bodies of its kind anywhere in the world. Such is its professionalism and profile that it is a complete surprise to many that it remains a publicly funded charity, staffed largely by volunteer ...

  • PrimasonicsTM Audiosonic Acoustic Cleaners Employ High Energy - Low Frequency Sound Waves in a Non-Intrusive, Highly Effective and Automatic Manner to Prevent Particulate Build Up and Maintaining Material Flow

    Operation: PrimasonicsTM Audiosonic Acoustic Cleaners comprise of a Wave Generator and differing Bell Sections. Compressed air enters the Wave Generator and forces the titanium diaphragm to vibrate thus creating a base tone. The varying bell sections amplify and convert this into a particular frequency depending on the application. Sound is best described as the passage of pressure fluctuations ...


  • Pinpointing Low Level Sanitary Noise in Apartment Building Case Study

    Problem A newly built apartment building consists of several floors with multiple apartments on each floor. One of the ground floor apartments is disturbed by sanitary noise from the apartment above, which is heard whenever the toilets in the top apartment are being flushed. The sanitary noise is heard in several rooms, and the level was measured to be around 30 to 35 dB, which is above ...


    By Norsonic AS

  • Noise in the Animal Shelter Environment: Building Design and the Effects of Daily Noise Exposure

    Sound levels in animal shelters regularly exceed 100 dB. Noise is a physical stressor on animals that can lead to behavioral, physiological and anatomical responses. There are currently no policies regulating noise levels in dog kennels. The objective of this study was to evaluate the noise levels dogs are exposed to in an animal shelter on a continuous basis and to determine the need, if any. ...


    By Troy Acoustics Corporation

  • Relationship between indoor environmental quality and building envelopes covered by plants: a review of the literature

    It is not clear whether the benefits of improving outdoor environmental conditions inherent in urban plants apply to building indoor environment when plants are integrated on building envelopes. This paper reviews published research to date to clarify whether building envelopes covered by plants have effects on indoor environmental quality, and building occupants' health and comfort. The review ...


    By Inderscience Publishers

  • Music Studio Application in Belgium - Case Study

    Following our recent expansion to the Belgian and Dutch market announced in June 2014 and collaboration with Company Ideal Acoustics our first prestigious project was recently delivered. Our first project was a prestigious music studio applications in Brussels, Belgium. The music studio was constructed  using the "room ...


    By ALPHA ACOUSTIKI Ltd.

  • Integrated noise calculation and evaluation according to the EU directive on environmental noise

    The model data for acoustic calculations already contains essential characteristics for more in depth evaluation of the results (i.e. building heights, number of storeys, or ground space per storey). With additional information such as building usage and number of inhabitants, the evaluation and graphical representation of the results can be completed with only a small increase in expense. ...


    By SoundPLAN International LLC

  • Sound Absorption for All Saints Church Community Centre

    Acoustic specialists, Sound Reduction Systems (SRS Ltd) were approached by All Saints Church with a view to treating the poor acoustics within their community centre. They had recognised that high levels of reverberation and echo were affecting the various groups that used the space, and were looking for a solution that was both effective and decorative. Initially, Mr Les Munns (Church Building ...


    By Sound Reduction Systems Ltd

  • Planning for shake down

    Design improvements at operating power plants continue to challenge plant staff and original equipment manufacturers (OEMs). While basic design calculations consider the capacity of components and stresses resulting from their use, few consider vibration issues in great detail in the design. Vibration can lead to instrumentation failure, cracking and fatigue damage, or early degradation of the ...


    By ABS Consulting

  • Fort Mandan Visitor Services Center case study

    The North Dakota Lewis & Clark Bicentennial Foundation has created a unique facility for one of the most vital sites on the Lewis & Clark Trail. The new visitor services center at Fort Mandan stands as a showcase for coal combustion products, while at the same time educating visitors about the journey of Lewis & Clark in North Dakota. Three major parts of the North Dakota: economy, ...


    By Headwaters, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you