Extractions: We provide professional Acoustical Consultant Services including noise control primarily for the architectural, environmental, and industrial workplace markets in North Carolina, southern Virginia, South Carolina and Tennessee. We help architects and engineers create more pleasant and useful environments, enhance and preserve value, reduce risk, and resolve existing problems in communities, schools, performance spaces, recreational areas, worship centers, and workplaces. This site includes a Self Help resource fulfilling a fundamental principle of the profession to help educate clients and the public about sound and the many ways it affects our lives. It includes an FAQ, printable documents on acoustics, a list of books, and Links to useful and interesting sites. Check our news page for the latest happenings
Orpheus Acoustics Acoustical consultants specializing in architectural acoustics including noise and vibration control for auditoriums, churches, synagogues, and other critical listening spaces. http://www.orpheus-acoustics.com/
Extractions: As an acoustical consultant, I can help you design your new building so that people will be able to hear clearly naturally intimately . Do you want the acoustics of your space to allow dialogue and discussion ? Do you want music to sound rich natural and full Unfortunately, many spaces have dismal acoustics . Isn't that your experience? It is most certainly mine. As an acoustical consultant and violinist, I listen and play in many spaces. Most of the time I have difficulty hearing; the sound is either too loud, too soft, muddled, dry, harsh, shrill, unpleasant, unnatural. I can't hear and I can't understand. Is it possible to have a space in which the acoustics allow you to understand speech clearly, naturally, in which music is rich and compelling ? Certainly! "You are nothing short of a miracle worker.... " (click here to read more)
Allied Environmental Consultants Limited Offering acoustics, environmental planning engineering and pollution control services. Located in Hong Kong. http://www.aechk.com/
Extractions: The organization Allied Environmental Consultants Limited (AEC) is an independent consultancy engaged in the field of acoustics and environmental engineering. We have established offices in Hong Kong, Xian, London, Kuala Lumpur, Tokyo, Singapore, Wuhan, Perth etc. The company operates as a multi-disciplinary amalgamation of resources and the professional expertise of the organization as a whole is available to work on any particular project irrespective of its location. As a result, AEC enjoys a reputation for quality, innovation and professionalism in all aspects of its work.
Campanella Associates (Acoustics Consultants) The science of acoustics provides the only reliable way to measure, analyze and control sound. Unwanted sound (noise) from our everyday http://www.campanellaacoustics.com/default.htm
Extractions: The science of acoustics provides the only reliable way to measure, analyze and control sound. Unwanted sound (noise) from our everyday environment can be annoying or damaging because our hearing sense cannot be turned off. Modern society unintentionally produces large quantities of noise through transportation, manufacturing and recreational activities. Campanella Associates is dedicated to making the home, work, institutional and recreational environments pleasant and safe. As acoustical engineers, we provide our clients with effective methods to reduce or eliminate noise. Campanella Associates can do any of the following: acoustical design and noise isolation testing of auditoriums, churches, recording and TV studios, apartments, residential units, and open-plan offices; computer modeling of airport, highway, and railroad noise for master plans; cabin interior noise and vibration reduction by design and testing; seismic (dynamic and stress) analysis of nuclear power plant components; surveys and reporting; noise control design; expert witness testimony. Have done extensive noise and vibration testing for OSHA, Leq, DNL, IIC, and seismic mitigation recommendations for FAA, FHA and HUD compliance. Campanella Associates has a very extensive client listing Participate in joint ventures, and have
Charles Salter Associates A firm with a staff of over 40 based in San Francisco that provides consulting in architectural acoustics, audio/visual telecom design, engineering acoustics, environmental acoustics, forensic acoustics, expert testimony and airport noise reduction. http://www.cmsalter.com
Extractions: Classroom Acoustics Many aspects of our busy modern times have deteriorated the classroom acoustical environment so that teaching in them is now more challenging than ever (ask any public school teacher). Whereas in the past one could create a quiet and pleasant classroom using natural ventilation, convection heating and absorbent (asbestos) ceilings one now all too frequently encounters relatively noisy and reverberant classrooms. The acoustical attributes of classrooms has been studied by the American National Standards Institute, and they have produced ANSI 12.60, as the recommended classroom acoustical standards. The general recommendation is that classrooms should be designed to have a background noise level of less than 35 dBA (less than NC-30) and a reverberation time of less than 1/2 second. In some detail, they considered the following: HVAC has advanced to the point where air conditioning has been designed into and retrofitted to many old classrooms. It is now clear that that the ideal background noise level for the teaching environment is a maximum RC/NC/NCB-25. Both address the problem of speech intelligibility across a room. Reverberation time must be reduced to 1/2 second by installing sound absorption materiel on the walls and ceiling. In previous years, sound absorption material often contained asbestos. That has all been removed or passivated. Carpet has a lesser effect on reverberation time. Its main function is to minimize surface generated noise (foot and chair scuffing). Carpeting may be targeted for removal, due to its propensity to harbor molds, .
Sound Technology Consultants, Inc. acoustics, sound, theatrical lighting, and AV systems for churches, theme parks, and stadiums. http://www.sound-technology.com/
Extractions: E-mail: info@structuralacoustics.com Structural Acoustics, Inc. Rapid system prototyping for solutions to difficult design, failure analysis and test problems. The mission of Structural Acoustics, Inc. is to develop and advance analytical and experimental methods in the investigation of system and component failures, mechanical stress and vibration, design defects, and accident causation. The company is able to rapidly develop and implement system and component test procedures, instrumentation, and protocols to evaluate design, manufacturing, and materials. Its methods have been applied to numerous structures and devices, ranging from biomedical applications involving mechanical heart valves and pacemaker lead components weighing less than one gram, to hydroelectric turbines, aircraft, and transportation systems. Finite Element stress analysis of a mechanical heart valve outlet strut.
Power Acoustics, Inc. Power Industry Acoustical Consultants Acoustical consultants specializing in the power industry. Designed noise control for hundreds of combustion turbine based power plants. Developer of SPM9613 environmental noise prediction software. http://poweracoustics.com/
Extractions: Acoustical Consultants Specializing in the Power Industry Power Acoustics, Inc. acoustical consultants provide quality professional acoustical consulting services including: computerized modeling, environmental and community noise impact assessments, noise control design services, ambient sound surveys, acoustic compliance measurements and analysis for all industrial applications. Power Acoustics' principal acoustical consultant, Dave Parzych , has designed noise control for hundreds of simple cycle combustion turbine (gas turbine), cogeneration and steam power plants and is committed to working closely with the power industry on turbomachinery and similar industrial noise problems. We are sensitive to our customer's need for effective low cost noise abatement in increasingly competitive markets. Our computerized acoustical design capability assures optimum noise control at the lowest costs. Also available is Version 2 of , a low cost environmental sound propagation model based on the ISO 9613 standard provides calculations of specific field points and predictions of A and C-weighted sound level contours as well.
Extractions: Since 1988 CDAI has provided an increasing range of services including Acoustics, Audiovisual, Lighting and Theatre services which enables us to address all relevant aspects of presentation spaces. From acoustics and lighting to the technologies themselves, we provide a comprehensive engineering approach to integrating the designs of facilities and systems. The CDAI Advantage: Unlike other firms which provide single services, our multi-disiplined approach provides you with a comprehensive range of expertise and project experience. Every project has it's challenges and our expertise helps you avoid the problems normally associated with such projects. When planning your next project, be sure to contact us early so that we can help guide you through the many facets of these complex technologies and avoid costly mistakes. We are ready to assist you in making your vision a reality. Dixson Associates Incorporated
Hodgson & Hodgson Group Ltd Independent consultants and design advice in the fields of acoustics, noise and vibration. Includes information on services and projects. http://www.acoustic.co.uk/
Power Acoustics, Inc. Power Industry Acoustical Consultants Power acoustics, Inc. acoustical consultants provide quality professional acoustical consulting services including computerized modeling, environmental and http://www.poweracoustics.com/
Extractions: Acoustical Consultants Specializing in the Power Industry Power Acoustics, Inc. acoustical consultants provide quality professional acoustical consulting services including: computerized modeling, environmental and community noise impact assessments, noise control design services, ambient sound surveys, acoustic compliance measurements and analysis for all industrial applications. Power Acoustics' principal acoustical consultant, Dave Parzych , has designed noise control for hundreds of simple cycle combustion turbine (gas turbine), cogeneration and steam power plants and is committed to working closely with the power industry on turbomachinery and similar industrial noise problems. We are sensitive to our customer's need for effective low cost noise abatement in increasingly competitive markets. Our computerized acoustical design capability assures optimum noise control at the lowest costs. Also available is Version 2 of , a low cost environmental sound propagation model based on the ISO 9613 standard provides calculations of specific field points and predictions of A and C-weighted sound level contours as well.
Cavanaugh Tocci Associates, Inc. consultants in architectural acoustics, noise and vibration control, sound system design. Information on firm, staff, experience, publications. http://www.cavtocci.com/
Campanella Associates - Acoustics FAQ acoustics FAQ. This enhanced version of the Acoustical FAQ file is provided by Campanellaacoustics.com, acoustical consultants, as a public service to foster http://www.point-and-click.com/Campanella_Acoustics/faq/faq.htm
Extractions: news:alt.sci.physics.acoustics - started by Angelo Campanella - now the principal group for discussion of acoustics topics. Ang's CV is at URL http://www.Point-and-Click.com/Campanella_Acoustics/angelo.htm news:sci.physics - general physics but occasionally acoustics related questions are posted. news:rec.audio.tech
Campanella Associates - ACCULAB Reference Sound Source Click Here to Return to Home Page ACCULAB REFERENCE SOUND SOURCES (TYPES RSS 101, 300, 400, 500, 600 (Ultra Power) 700 (Small Power)) AND LABORATORY TEST http://www.point-and-click.com/campanella_acoustics/rssman.htm
Extractions: NOTE 1: DUT.PWL = DUT.SPL - RSS.SPL + RSS.CAL dB re one Picowatt. [one Picowatt = 10^(-12 watts)] Thus, sound power can be measured at all audio frequencies, typically in 1/3 octave bands separately. The Hemianechoic Calibration following shows such RSS.CAL information for a typical ACCULAB RSS 101. (The RSS101 is for use on 60 Hz alternating current common in North America. A 50 Hz unit, the ACCULAB RSS 300 is also available. 110vac and 220vac arrangements are also available) NOTE 2: In recent years, sound power measurement with the INTENSITY method has become increasingly important. ISO 9614, parts 1 and 2 now address this measuremnt. Ostensibly, it should be immune to background noise to an extent and also eliminate the need for a reference sound source. But in reality, the intensity method requires a special probe having two identical microphones, an accurate analog/digital signal processor, software algorithms that are in themselves complex and also operators not yet widely experienced in handling all of these parameters. In addition, microphone spacing must be changed at least once to measure sound power over a wide frequency range.
Welcome To ACIA Engineering Acoustics UK consultants providing design and measurement services in industrial noise, building design, and planning. http://www.acia-acoustics.co.uk
[ DSM & Associates ] Solutions for acoustics, Sound, Audio/Visual Systems and Project Management. Assisting architects, engineers, school systems, Colleges and Universities, churches, recording studios, television and radio stations contractors. http://www.dsmassociates.com
