What instrument do we need for noise measurement?

Humans hear because our ears function to allow us to feel the vibration of the sound power emitted from the source object. Therefore, we need an instrument that hears the way we do for noise monitoring. This is the sound level meter. The weighting network built-in in the sound level meter will function to weigh. It is working like our ears, which emphasises or weighs some parts compared to others.

Photo above: Norsonic sound level meter

In the world of digitalisation, we fully utilise the Internet and website to conduct monitoring. The noise data collected by the sound level meter will be transferred via the Internet. We will make good use of the dashboard to view the data collected online. The digitalisation saves the human resources we used to need for monitoring. We can now easily retrieve the data in real-time and the historical records.

Pho

Photo above: d-Noise monitoring platform

What kind of data should we record? First and foremost, the dB of our monitored environment. The corresponding date and time are to let us find out when the particular event happens. And this is the reason why we need historical data over a period. Additionally, we may want to know about the weather condition as the rainy day may force us to abandon the monitoring for the rain splash sound. Sometimes, you want to monitor the sound levels at several locations. A station list with the map embedded on the dashboard is a helpful tool to reveal which station you are reviewing.

You have learned about the critical elements of noise measurement. Now, let’s act together – Observe your environment; Identify the noisy areas you would like to monitor; Know your noise monitoring device; Set up the noise monitoring station; Learn the dashboard to record the data; Brief about noise monitoring factors and mitigation measures. Study the noise in your environment for a period. You will find out the characteristic of your place and think about what to do.

We bear a responsibility to protect and improve the environment. Can you think of a way of creativity to deal with the noise problem you have? Any thought about utilising a noise absorption material to design the mitigation with aesthetics in mind?

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)

How can you correctly measure noise?

You may be engaged in noise measurements in a workshop, measuring with all objects running simultaneously. If you stay there, you will get the data for all objects and the overall sound pressure level in the room. In many cases, background noise may drown out the particular machine noise during measurement. How do you eliminate the background noise and correct the influence?

What you need to do is to measure the sound pressure level with the objects running, and then switch off the objects and measure the background level, calculate the difference between these amounts, locate this on the horizontal axis on the graph below, go up until you intersect the graph, and then go to the vertical axis to the left. Subtract this value from the overall level, and you get the machine sound pressure level. Alternatively, you can utilise the equation to get the result.

Background noise matters to our noise measurement. Before measurement, we have to observe the environment to measure the noise level and identify the ideal location of the monitoring station. There are numbers of points we need to pay attention to when observing the environment. How many noise sources can you find in the environment? What characteristics do the noise sources have? Which location at the site can we pinpoint most of the noise sources? At the site, which directions do the noise sources come from? How far apart are the noise sources? Are there any walls/structures that may cause reflection?

Besides background noise, external factors such as the angle of the sound level meter are placed, and the weather impacts the monitoring. Do we cover most of the noise sources? Is the station close to the noise sources? Is the area encountering human activities? Do we have a good wifi signal and a stable electricity supply? Last but not least, is it safe to access?

After identifying the monitoring location, let us find out what instrument we need for noise measurement.

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)

Why environmental monitoring matters and how to collaborate

Download our Intelligent Schooling Scheme (https://anewrhk.files.wordpress.com/2021/04/intelligent-schooling-proposal.pdf)

Human rights are highly evaluated by the watchdog in contemporary society – freedom of thought and expression, education. We do not doubt that we should safeguard our rights.

Human rights can interact with other disciplines. Dates back to the 1970s, the Stockholm Declaration on the Human Environment – Principle 1 of the Declaration writes, “Man has the fundamental right to freedom, equality and adequate conditions of life, in an environment of a quality that permits a life of dignity and well- being, and he bears a solemn responsibility to protect and improve the environment for present and future generations”.

For the world economy, that statement implies the environmental protection cost; it also deduces the environmental business opportunity. Let’s explore what opportunity that human rights associated with ecological protection bring to you. Remember the Universal Declaration of Human Rights #30 – No One Can Take Away Your Human Rights.

Environmental health is about the relationship between people and their environment, human health and wellbeing, healthy and safe communities. Social initiatives can be treated professionally, scientifically.

And, we should. Importantly, our next- generation leader can learn about the environment scientifically.

HERE’S WHAT YOU CAN DO

SET UP A MINI ENVIRONMENTAL MONITORING STATION AT SCHOOL FOR A YEAR:

  • Noise monitoring station
  • Dust monitroing station
  • Weather monitoring station

WITH CONTEMPORARY PROFESSIONAL MONITORING EQUIPMENT AND A DASHBOARD.

GAME ON TO FURTHER DEVELOP CREATIVITY

A MINI COMPETITION TO UTILISE A NOISE ABSORPTION MATERIAL WITH AESTHETICS IN MIND

  • Identify the noise spot at school
  • Test the noise mitigation measures suggested by the experts
  • Design an aesthetic noise control product to mitigate the noise condition

Collaboration – Corperate level

The Intelligent Schooling program meets the following targets that corporate wants to achieve in social matters:

1) Human rights;
2) ESG Reporting;
4) Corporate Social Responsibility;
5) Sponsorship to support local environmental education toward the built environment.

Ways to support:

1) Promote the Matters Academy’s ASA ESEA Acoustics Masters Lecture among staff, e.g., through the intranet, internal sharing via email, and through the external communication channel, e.g., corporate website;
2) Sponsorship of environmental monitoring devices – noise, dust, and weather station – and the dashboard;
3) Sponsorship of guidance to student participants and notes, and be the jury;
4) Sponsorship of competition material cost and the winner prize;
5) Corporate support through full sponsorship can nominate a target beneficiaries group (Participants with, e.g., disabilities may not be facilitated due to facilities capacity);
6) Corporate support program through sponsorship can name the event.

Collaboration – School level

The Intelligent Schooling program meets the following targets that school wants to achieve in social matters:

1) Human rights of having a pleasant learning environment of their own;
2) Understanding of the built environment;
4) Learning the contemporary environmental monitoring measures and way of data analysis;
5) Learning to assess the environment;
6) Be knowledgeable about their environment;
7) Expanding students’ horizons about living environment.

Ways to support:

1) Promote the Matters Academy’s ASA ESEA Acoustics Masters Lecture among teachers, students, parents, and schools;
2) Participate in mini environmental monitoring station program;
3) Encourage the students to join the action and the mini-competition.

Contact us for more at info@anewr.com.

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)

Sport is about our fitness; it can also be related to sustainability

We are all thrilled about the achievement of our Hong Kong gold medalists and the athletes in the Olympic Games. Coming up next is Paralympics involving athletes with a range of disabilities. After all these years, it is fantastic to see their efforts to be qualified to get a pass to the games competing with the outstanding athletes. For professional athletes, sport is a career with passion. For amateurs, sport can be a mental cure and physical fitness for them.

Photo above: The Government of HKSAR will boost sport by allocating funds.

Sport is about our fitness; it can also be related to sustainability – the timely topics worldwide right now. Sport England unveils that “Sustainability plays a key role in the design and management of sports recreation and leisure facilities”. The concept behind is just about why we need green buildings – sustainable facility drives down the running cost and does well to the pressing climate issue.

The sports sector does do encouragement by nature itself, promoting going places by walking, jogging, and biking and at the same time using less polluting vehicles. When it comes to a large sports event organisation, sustainable travel policies and energy-saving operations matter essentially to climate change.

It requires sustainable facility planning, commuting distance, quality of the route, safety and security. Such an active environment provokes the adaptation of the original landscape. Same as green building development, we should analyse the total cost over the project’s life, considering the operation and maintenance cost. Sport England indicates a possible framework for developing a robust strategy for any facility as below.

Diagram above: A possible framework for developing a robust strategy for any facility (extracted from https://www.sportengland.org/how-we-can-help/facilities-and-planning/sustainability?section=environmental_sustainability_and_sports_facilities)

The external environment can be dealt with by launching an environmental assessment; an indoor environment is another important quality affecting people. We are obliged to assess construction and development. For the interior environment, noise, heating and lighting are three crucial elements for the users’ comfort. The overall sensation is also about where the facility sits. Therefore, we engage a list of modelling to analyse the environmental situation.

The modelling we will apply for environmental analysis are:

Air quality model

  • Caline 4 (For vehicular emission)
  • AERMOD (For industrial emission)
  • emfac-hk (For vehicular emission)

Noise model

  • Noisemap (For road noise)
  • Soundplan (For road and stationary noise sources)
  • AEDT (For aircraft noise)

Energy model

  • Equest (For energy consumption)

Lighting model

  • Dialux (For indoor and outdoor lighting)
  • IESVE (For outdoor lighting)

Geographic model

  • ArcGIS (For statistical analysis)

It is exhilarating that sport has become aware by citizens thanks to the Olympic Games. When considering the sport and athletes’ future development, we should consider other factors to create the best possible facilities to advance our sport levels sustainably.

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)

Vibration monitoring system for hospital

Participating in the vibration monitoring projects for United Hospital, and Grantham Hospital, ANewR’s d-noise vibration monitoring system compatible with high-precision vibration monitoring devices delivers one-stop workflow management. Under the control centre concept, the d-noise system comprehensively facilitates the stakeholders in hustle-less monitoring. Additionally, the d-noise is highly customisable to the client’s needs.

Explore the d-noise with ANewR. We are happy to learn about what you need.