When do you take the acoustic solution into your monitoring scope

Received noise complaints, but could not confirm where the noise came from? Have you ever encountered a case that your machine is too noisy but do not know what it is? Do you know what to do to benchmark the “right” construction equipment in the acoustic term?

There are two essential supporting document systems to benchmark your environmental-friendly construction equipment – EU System and MLIT of Japan System. The application requires measurement and testing, change of ownership, taking stock of maintenance records to report, and preparing the essential documents. Those documents, such as Sound Test Report, need to be verified by certified bodies and signed off by the professionals.

On the other hand, acoustic solution helps you to find out a loud source.

It is often difficult for humans’ ears to identify where the noise is coming from. Professionals utilise intelligent acoustic technologies to find out the source of the noisy problems.

A compass – a compass is used for navigation and orientation. It is a tool giving us direction.

What compass is this when the compass is used to find the noise? Noise compass is using the correlation technique, calculating the direction and looking for the dominant noise source. The chief noise source in a rowdy and crowded situation can be found when there are significantly comparable sound levels. The accuracy of noise direction relies on the quality indicator to tell the diffuse field characteristic’s uncertainty. The highly unique noise source defines the quality level. Therefore, noise measurement using a noise compass can be tricky in an indoor environment and a reflective setting.

Video – How to know from where noise comes in a complex environment – what hardware and software do we need: https://www.youtube.com/watch?v=3ZQXQE7l-zU&t=12s

While the noise compass gives you direction, combining the sound level meter that can mark and separate the measurement from the defined order can maximise the use and the result.

The chaotic, noisy situation encounters in a construction site near road often. This is when you take the acoustic solution into your monitoring scope.

Video – How can you find the noise, not with your ears, but with a scientific method? : https://www.youtube.com/watch?v=oiEHQhrxCBs&t=85s

By: ANewR Consulting Limited, a digital environmental consultant headquartered in Hong Kong since 2008. Our expertise has grown into the context of air and water qualities, noise, green building, waste management, and remediation. With extensive know-how in environmental planning and assessment, feasibility study and policy review, ecological design, monitoring, and audit (EM&A), ANewR has matured to be a leading management consultancy. Standing in the digital transformation reign, ANewR has participated in various environmental digital projects – interactive 3D visualisation, immersive automation virtual environment, Virtual reality, automation system, and monitoring platforms.
(Website: https://anewr.com, LinkedIn: ANewR Consulting Group, Twitter: ANewR – Everyday Newer,
YouTube: https://www.youtube.com/channel/UCnpvmxnR9hbNxytSfBdfV8Q/videos)

We have noise mitigation measures; why we still need a professional system to monitor

In virtue of the increasing needs of the residential dwellings, together with limited land resources, residents in urban areas are inevitably exposed to a high level of road traffic noise.

Innovative noise mitigation designs and measures, such as acoustic windows and enhanced acoustic balconies, have been proposed to alleviate the noise impact, aiming to protect residents affected by road traffic noise.

However, the noise reduction performance of the innovative noise mitigation designs is only determined experimentally, concerning distance and elevated angles from the traffic sources, the opening size, overlapping length, gap width, and windows’ absorptive material.

It does not consider the workmanship, which may finally deteriorate the noise reduction performance of the innovative noise mitigation designs. Therefore, a mock-up or field test by Six-channel Acoustic Measurement System and Acoustic Camera is decisive for securing the noise reduction performance.

Professionals make good use of a state-of-the-art Six-Channel Acoustic Measurement System and Acoustic Camera, which comply with international standards. Besides, the quality professional services from a consultant in acoustic consultancy and associated noise measurements is of great importance. All noise measurements are undertaken according to the most rigorous QA procedures and international standards’ methodologies to ensure quality data.

Check it out with us for a comprehensive solution to the noise problem.

Video – Design thinking behind the development of Hextile Acoustic Camera for sound locating applications: https://www.youtube.com/watch?v=n1Xy9oUBlto&t=12s

By: ANewR Consulting Limited, a digital environmental consultant headquartered in Hong Kong since 2008. Our expertise has grown into the context of air and water qualities, noise, green building, waste management, and remediation. With extensive know-how in environmental planning and assessment, feasibility study and policy review, ecological design, monitoring, and audit (EM&A), ANewR has matured to be a leading management consultancy. Standing in the digital transformation reign, ANewR has participated in various environmental digital projects – interactive 3D visualisation, immersive automation virtual environment, Virtual reality, automation system, and monitoring platforms.
(Website: https://anewr.com, LinkedIn: ANewR Consulting Group, Twitter: ANewR – Everyday Newer,
YouTube: https://www.youtube.com/channel/UCnpvmxnR9hbNxytSfBdfV8Q/videos)

Buddying up with sustainable material and aesthetic design

Do you see the difference between you and the engineers?

The engineers build and resolve the problem through the source, whereas the first thing we see as non-engineers receive the outcome and then look at the source. Our sensation tends to be influenced by a psychological factor.

Here below is an example of differences.

When you walk down to the street where a construction site stands, the construction workers usually install a soundproof canvas. The one-kilogram-per-square-meter vinyl insulates less than ten dB sound level. The quietness function has been used to minimise the source noise impact. The psychological effect may happen from the receivers when they see the printed text “soundproof” on the vinyl material surface.

What is this psychological effect? The quietness definition shall be redefined – redefined with a low sound pressure level and the visual element. The exposure of the noise barrier outside the facade to the passers-by guarantees the feeling of quiet. The noise barrier function now has unified – to hide the hideous noisy traffic from hearings and eyesight. One example is the noise barrier along railways and highways. The role of unification here is to create a harmonious society.

The visible acoustic measures work like: when we dress up and clean, people will feel more comfortable seeing us and even accept us as the social counterpart. Visual sensation contributes over fifty percent of human sensory input. The innovative concept of visual quietness raises the awareness of soundscape and the building environment achieving perceived acoustic comfort. You may experience an aircraft noise running over your head. If the aircraft is flying over low, you may feel the plane is noisier. In the setting of ornamented noise barrier would audibly and visually give you a quiet environment.

Photo above: the decorative acoustic wall embellishes the duct silencer, making people feel more comfortable and calm when looking at it due to psychological effects. Mr. K.K introduces the concept. Iu.

And, what would engineers do about the problem? The engineers would develop a solution to tackle the issues, such as finding the appropriate materials to accomplish the tasks.

The aesthetic design is now buddying up with sustainable material – this is what the engineers are doing for their jobs. The Amorim expanded cork is an aesthetically pleasing and negative carbon balance product. The panels can absorb more than ninety percent of random incident sound from 125 to 135 Hz. The versatility is the various combinations of sound absorption materials behind the corkboard, such as water repellent rock wool and fire resistance acoustic fabric to tune the cork panel’s sound absorption properties. It is worth noting that cork is a sustainable material – entirely natural, light, permeable to liquids and gases, elastic and compressible, thermal and acoustic insulation, completely biodegradable, renewable, and recyclable.

Photo above: Sustainable Amorim expanded cork

The new era of products starts from creative thinking, turning to reality through innovative implementation. The outcome significantly augments the process creating value for business and society. Engineers and non-engineers are contributing to reconstruct our environment for a more enjoyable living.

Photo above: to conclude how to contribute to society by cultivating a harmonious society via innovative noise control measures
Video – Industrial Noise Control Creatively and Innovation by Mr. K.K. Iu at Matters Academy.

By: ANewR Consulting Limited, a digital environmental consultant headquartered in Hong Kong since 2008. Our expertise has grown into the context of air and water qualities, noise, green building, waste management, and remediation. With extensive know-how in environmental planning and assessment, feasibility study and policy review, ecological design, monitoring, and audit (EM&A), ANewR has matured to be a leading management consultancy. Standing in the digital transformation reign, ANewR has participated in various environmental digital projects – interactive 3D visualisation, immersive automation virtual environment, Virtual reality, automation system, and monitoring platforms.
(Website: https://anewr.com, LinkedIn: ANewR Consulting Group, Twitter: ANewR – Everyday Newer,
YouTube: https://www.youtube.com/channel/UCnpvmxnR9hbNxytSfBdfV8Q/videos)

We know that noise is bad for health

Noise can cause elevated heart rate and blood pressure. Noise can alter our immunity system too. It is common for us to experience sleep disturbance with significant problems. To the extreme, we would lose our hearings to a substantial noise level.

Why can’t we have a quiet place to live? Beyond a vast population on limited land, the original site for residential redevelopment already subjects to a high noise environment.

It is challenging to plan and coordinate the long-term housing strategy. In Hong Kong, housing development’s available sites are closed to the heavily trafficked roads and railways. In recent years, you should find individual housings are built around busy streets due to the land scarcity, which in turn, causing us to look for alternative potential redevelopment sites. Redevelopment – the action or process of developing something again or differently – may make use of another land type to fulfill the housing strategy. If, for example, the site formerly was a factory site, it is likely the area enduring heavy vehicle traffic. We love convenience, but housing developed in the present urban area will be unavoidably within the dense traffic area.

Photo above: Why we fail to have a quiet place to live, provided by Maurice Yeung, the charter member of East and South-East Asia Regional Chapter of Acoustical Society of America

Environmental professionals have known many noise mitigation measures – a setback, single aspect design, fins, etc. Still, about nine hundred thousand people in Hong Kong are enduring the inevitable traffic noise. Methods are discovered to protect the residents from traffic noise above 70dB(A) L10(1 hour). Innovative noise mitigation measures are much needed to be explored and developed to reduce the percentage of the population exposed to traffic noise. The percentage of population exposed to traffic noise is a useful comparable benchmark to appraise how well the cities are doing for noise mitigation.

What are the innovative mitigation measures? The creative standards require collaboration and partnership to develop sustainably.

Innovative noise mitigation design (INMD)
The research and implementation of the acoustic window are one of the prime examples of INMD. The acoustic window is a window type yielding a magical solution for a dilemma situation. In the past – and even now, it is still a common issue; an open window drawing the airflow also brings the house with noise. The acoustic window principle is “By arranging two glass panels parallel to each other with openings at alternative sides; traffic noise can be screened off while allowing natural ventilation simultaneously,” defined by the Environmental Protection Department. Acoustic windows have been installed in some recent public housing. The practicability of mounting the acoustic window in the existing housing and mitigating rail noise is under study.

Video 0 Interviewing noise control pioneer in Hong Kong featuring K K Iu : https://www.youtube.com/watch?v=I6axMP-qP3g&t=16s

Low noise road surfacing (LNRS)
LNRS utilises absorbent materials to reduce tyre/road interaction noise or reducing tyre tread impact and shock noise. It is a common standard for highways. For local roads, the application will depend on the specific road condition.

Smart technologies
The name “smart technologies” is generic. Here for environmental protection is the application of virtual reality, big data and artificial intelligence, 3-dimension (3D) geographical information system (GIS) and 3-D photo-realistic model.

  • Virtual reality is a game-changer. In an environmental sense, it mimics the surroundings, and we can add our external idea into the simulated environment to virtually test the practicability. Thoroughly to learn the project environment, the authorities and stakeholders are effortlessly to recognise the potential externality before moving on to urban development.
  • Artificial intelligence enables an automated monitoring system supported by a technology platform that empowers authorised parties to operate through various IT devices, including smartphones and tablets. The system automatically signals the breaches and visually verifies the sources. All data is filed and immediately accessible for use. The system contributes substantial savings in human resources and costs for site monitoring works and enhances information distribution amongst project parties.
  • Law enforcement is to combat environmental crime effectively, random inspection and control are hardly adequate. Target enforcement action and strategy are set to surveillance the risk. The risk-based approach uses a webcam system, an uncrewed aerial vehicle to surveil, and a project website to release surveillance information.
  • Once the data is captured, these data are the lesson learned. It is essential to reposit them, reuse them as reference for future projects. Smart Environmental Assessment System is intelligently capable of learning from past environmental impact assessment (EIA) and performing EIA for projects and planning, analysing public comment, and proposing mitigation measures. Environmental constraints will be identified by retrieving the map previously derived from geospatial data. Automated EM&A checking system and integration of 5G and artificial intelligence technology heighten the enforcement measures. The use of 360 cameras and drones to continuously monitor the work in progress is reasonably applicable.
Video – What will our environmental service be like in the future? : https://www.youtube.com/watch?v=w-1SnZ74thc&t=4s

Do not forget land planning, which is very important from the very beginning. The cradle-to-grave approach starts from design to implementation. The developers’ role falls onto considering the appropriate noise measures before commencing building work. The monitoring and management cause workload and burden. Therefore, the enforcement party should set up a checking mechanism to ensure the developers undertake the mitigation measures.

Video – What the experts tell us about noise control: https://www.youtube.com/watch?v=DzzBBCRbfJE&t=4s

By: ANewR Consulting Limited, a digital environmental consultant headquartered in Hong Kong since 2008. Our expertise has grown into the context of air and water qualities, noise, green building, waste management, and remediation. With extensive know-how in environmental planning and assessment, feasibility study and policy review, ecological design, monitoring, and audit (EM&A), ANewR has matured to be a leading management consultancy. Standing in the digital transformation reign, ANewR has participated in various environmental digital projects – interactive 3D visualisation, immersive automation virtual environment, Virtual reality, automation system, and monitoring platforms.
(Website: https://anewr.com, LinkedIn: ANewR Consulting Group, Twitter: ANewR – Everyday Newer,
YouTube: https://www.youtube.com/channel/UCnpvmxnR9hbNxytSfBdfV8Q/videos)

An IoT public engagement

In last interview with Mr. KK Iu, we talked about the acoustic window mock-up model. The role we should not miss is the coordination and management. For the mock-up project this time, Mr. James Choi from ANewR Consulting Limited is the chief person to lead.

Video – Interviewing noise control pioneer in Hong Kong featuring K K Iu (Part 1): https://www.youtube.com/watch?v=qJRHBjzGdTo)

J – Mr. James Choi from ANewR Consulting Limited

R: I looked at the demo. It is pretty impressive. What are the challenges when making it?

J: The tender had given us rooms to propose creative ideas. We were asked to set up merely a booth to introduce the acoustic window to the public. The challenge here was to pitch ANewR’s capability in environmental service and digitalisation while our proposal connects our client’s objective. The innovative and design thinking process began with a question – how might we remodel the demonstration to entice stakeholders to tour the booth? The client’s stakeholder was the general public for the project this time. Our next question was how to build a booth drawing the general public to glance moreover retain them at the booth. We wanted the audience to have fun while being informed. 

From a marketing point of view, Big Waster is the character that suits this project purpose well from an educational angle – the right image symbolizing our client. It is the funnies that children and adults will love about him. The animation with Big Waster conceives a living while informative presentation.

On the other hand, the way of bringing out the informative message is innovative digitally. Matching the world trend of digitalisation, we had chosen the interactive activity triggered by a sensor to let the participants control the mock-up acoustic window’s open and close only by a hand wave. More than that, we had added the sensation of sound and wind. The operation is simple – when the outer window and the acoustic window are wide open, the participants will hear the noise coming through the window, reaching seventy dB. If closing the exterior window, the acoustic window is in function effectively, and the participants can feel a reduction of noise level as well as air ventilation.

R: What is the role of ANewR in this project? 

J: As the main contractor of this mock-up project. ANewR had picked up the project management task, coordinating and liaising between the client and sub-contractors. By capitalising on digital development projects and extensive environmental knowledge over a decade, ANewR is delighted that our client has appreciated our creative proposal and the final exhibition. It relies on an excellent long-term collaboration in understanding the client’s perspective to ensure our deliverables are up to our client’s expectations. By harmonising the sound performance and visual production, the interactive collection ideally blends in the whole interior environment. We are scaling down the window to accommodate the exhibit area that aligns with the height of a human being to wave at the sensor camera to trigger the interactive game start, calibrating the noise level display to illustrate the dB corresponding to the open or close scenarios literally. The wind effect is to produce a more stimulating experience for those who engage at the booth. The Big Waster in the video is the lead to assist the visitors throughout the show. The acoustic window’s demonstration set enables the gamer to control the changing mode smartly by pose, QR code, and remote control. The remarkable example of Shek Mun Estate incubates the background scene to arouse the visitors’ attention to the compelling real-world case of Hong Kong.

From here, you may notice another challenge we face as the main contractor. We have much cross-stakeholder collaboration in this project. They are our client, the venue owner, the acoustic window supplier, technicians, marketing agency, scripts contributors, IoT specialist, logistic Company, users, last but not least, the acoustic consultant. The most unforgettable event during the set-up was to move the finished block to the venue. The booth is 2.4 meters by 1 meter, which did not fit in the elevator. What we could do is cut them down into three pieces and reinstate them into one. Thanks to each professional party’s collaboration, the acoustic window model booth has gracefully stood at the CIC–Zero Carbon Park from 5th October 2020.

The mock-up acoustic window model is open for a visit when the general public registers a tour with The CIC–Zero Carbon Park in Kowloon Bay, Hong Kong. 

Video – The making of the acoustic window booth for EPD in Hong Kong: https://www.youtube.com/watch?v=v2VpXKLYF0o

By: ANewR Consulting Limited, a digital environmental consultant headquartered in Hong Kong since 2008. Our expertise has grown into the context of air and water qualities, noise, green building, waste management, and remediation. With extensive know-how in environmental planning and assessment, feasibility study and policy review, ecological design, monitoring, and audit (EM&A), ANewR has matured to be a leading management consultancy. Standing in the digital transformation reign, ANewR has participated in various environmental digital projects – interactive 3D visualisation, immersive automation virtual environment, Virtual reality, automation system, and monitoring platforms.
(Website: https://anewr.com, LinkedIn: ANewR Consulting Group, Twitter: ANewR – Everyday Newer,
YouTube: https://www.youtube.com/channel/UCnpvmxnR9hbNxytSfBdfV8Q/videos)

A training about acoustic camera for noise control

We are delighted that Mr. James Choi, Director of ANewR Consulting Group, has presented the webinar about Norsonic acoustic camera application to our client. The real-time demonstration in person has made the webinar lively and informative.

In our second-round acoustic camera training, thanks to Mr. James Choi and Miss Jessica Yam for hosting it and answering questions, ensuring smooth running. James had shared many possible acoustic camera applications in different scenarios to give ideas of how to best use the acoustic camera. Do you find the solution to resolve the noise issue around? Talk to us now.

The interactive acoustic window booth

ANewR feels delightful that the acoustic window booth is now being introduced in the CIC Zero Carbon Park tour. The booth activity has associated with sensation, utilising the sensor to activate the action. The lively presentation brought by ANewR and our client surely tells the good story of the acoustic window, creating a great awareness to the general public.

Hong Kong leadership in acoustic solution

We are pleased to see the Hong Kong leadership in initiating the innovative acoustic window in the public housing and the professional acoustic window consultant in bringing the acoustic window to life. Our honor is to have Mr. KK Iu, Father of Noise Control, to share his acoustic story. What was it like ten years ago? What is the improvement the acoustic industry has made? What is the role of acoustic people in the market?

Let’s find out more here about the acoustic development for our future.