Acoustic consultancy

Acoustical engineering is the branch of engineering dealing with sound and vibration. It is the application of acoustics, the science of sound and vibration, in technology. Acoustical engineers are typically concerned with the design, analysis and control of sound.
Which separated into many branches:

Mechanical

Mechanical Noise & Vibration Control

- Machine room design
- Machine vibration isolation
- HVAC Rooftop equipment noise control
- HVAC air duct design to meet specified noise criteria
- Silencing of Fans and other mechanical equipment
- Generator Sets noise and vibration control
- Design of shelters and skid structures
- Sound Power measurements

Industrial

Industrial Acoustics & Noise Control

- Hearing Conservation Programs
- Sound Surveys to identify and evaluate noise sources for control
- Acoustical enclosure design
- Noise control for equipment, machines and process facilities
- Guidance with equipment selection to meet established criteria
- Design of Public Address and General Alarm Systems
- Noise and vibration measurements

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Architectural Acoustics Design

- Room Acoustics design, including shaping, sizing of rooms, structures and finishes.
- Sound isolation
- Design of Auditoriums and Theaters
- Room Criteria calculation and measurement
- Complete Acoustic design of public buildings, hotels and hospitals
- Measurement of Reverberation Time, Room Absorption, Building Isolation

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Environmental Noise Studies

- Noise Impact Assessment
- Noise monitoring
- Site suitability studies
- Applications for site plan approval
- Aircraft and ground transportation planning
- Noise of studies for Wind Turbine farms
- Analysis, mediation and mitigation of environmental noise sources

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Product and System Sound Design

- Reduction of product noise levels
- Enhancing the sound quality of products
- Alarm level notification compliance
- Sound system design

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Acoustic Design of Mufflers

- Design and optimization of exhaust/intake systems
- Modeling and Simulation of muffles and silencers for acoustic performance and back pressure compliance
- Measurement of the muffler Transmission Loss, flow generated noise and pressure drop
- Training on Design concepts of muffler acoustics