Composed of acoustics experts with over 25 years of experience in the market, OTOH Sound Monitoring was founded in 2022 with the mission of revolutionizing the sound measurement market by offering a Low-cost, Versatile, Reliable and Friendly service.

We facilitate noise monitoring, helping to manage noise pollution anytime, anywhere, in the palm of your hand.

Reduce financial and operational risks while improving the relationship with the community.

Reduce the financial and operational risks of poor noise management while improving community well-being with our Sound Monitoring.

At OTOH, we are ready to help you solve noise problems with cutting-edge technology and personalized service.

Contact us to request a quote, ask questions or get more information about our sound monitoring services.

Frequently asked questions and answers about continuous sound monitoring

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During monitoring with our service, you have complete autonomy in noise management, allowing for quick and proactive decision-making. With access to real-time data, our technology identifies problems before they become serious, ensuring efficient control and prevention.

We assess your needs before sending you a proposal. Our technical team listens to your problem to assess the best way for you to manage your noise, suggesting the number of sensors needed and the best installation locations so you can understand the soundscape of the location.

After contracting, we will come to you to install the sensors. During the monitoring period, monitoring is done remotely, with technical visits for maintenance or uninstallation as necessary.

Autonomy and Proactivity

Personalized Assessment

Installation and Maintenance

Available 24/7 on any browser, our intuitive platform allows you to access and interpret data in real time, making noise management agile and proactive.

Our innovative technology offers continuous noise monitoring, with short and long-term campaigns, customized to your needs.

Easy to install, our sensors use artificial intelligence to identify the sources that generate the most noise, allowing continuous, proactive and remote management.

Cutting-edge technology in sound monitoring

24/7 Platform

Flexible Deadline

Smart Sensors

Here you can stay informed about OTOH, and clarify your main questions.

Knowledge HUB

Taking care of workplace health and safety is fundamental for any company that aims not only to comply with laws but also to create a productive and healthy environment for its employees. In Brazil, Norma Regulamentadora 1 (NR1) sets out the general rules for managing workplace risks, serving as the foundation for all other standards. In this context, noise in the work environment often appears as a subtle risk, but one that can have a major impact on employee health and the legal compliance of companies.

This article covers NR1, the importance of managing noise, what can happen when noise is not managed properly, and how OTOH can help overcome these challenges—turning compliance into a competitive advantage for your business.

The May 2025 version of NR1 focuses on the Programa de Gerenciamento de Riscos (PGR — Risk Management Program). The PGR is a continuous process that involves identifying, assessing, and controlling hazards and risks present in the workplace. It requires companies to:

Identify hazards by recognizing what can cause health problems or accidents.

Assess risks by analyzing the likelihood of harm and the potential severity of the consequences.

Implement control measures and create actions to eliminate, reduce, or control risks.

Monitor and review by tracking control measures and evaluating their effectiveness to revise the PGR periodically or when there are changes at work.

Noise, being a physical agent, is one of the risks that must be included in the PGR. NR1 does not set noise limits but refers to other standards such as NR15 (Insalubrious Activities and Operations) and NR17 (Ergonomics), which establish exposure limits and necessary control measures. Even so, NR1 clearly requires an active and organized approach to manage all risks, including noise.

The Impact of Noise on Health and NR1 Compliance

Excessive workplace noise is a serious health and safety issue. Its effects go far beyond hearing loss—which is already a serious and irreversible problem. Constant exposure to high levels of noise can cause numerous health issues, as demonstrated by studies and reports from the European Environment Agency (EEA) [1]:

Sleep Difficulties: Trouble falling asleep, disrupted or unrefreshing sleep, leading to fatigue, irritability, and impaired thinking.

Stress and Mental Health: Increased stress, anxiety, depression, and irritability, directly impacting employee well-being and work capacity.

Difficulty Concentrating: Impaired attention, memory, and learning ability, especially in children exposed to transport noise.

Heart Problems: Constant noise can raise blood pressure, increasing the risk of heart disease and stroke.

Other Effects: It can contribute to the development of type 2 diabetes, obesity, and even memory problems in cases of prolonged and intense exposure.

The Impact of Noise on Business Operations

In addition to the direct impact on workers’ health, poor noise management leads to serious consequences for NR1 compliance and for the company itself. These consequences go beyond health issues and can represent a significant financial burden:

If noise is not properly identified, assessed, and controlled in the PGR, the company may face hefty fines from agencies such as the Ministério do Trabalho e Emprego. Non-compliance can bring severe sanctions and harm to the company’s reputation.

Employees who develop health problems due to noise (such as noise-induced hearing loss—PAIR) can file lawsuits. These actions may result in considerable indemnities and pensions secured under Tema 555, which can amount to up to 75% of the company’s payroll value [2].

Distraction caused by noise can lead to mistakes and accidents at work, putting everyone’s safety at risk. Noisy environments affect attention and communication—crucial factors to prevent incidents. While it’s difficult to quantify the cost of accidents specifically caused by noise-related distraction, the overall increase in accidents and productivity loss is a direct consequence of noisy environments, generating significant costs for businesses.

Noisy workplaces hinder concentration, communication, and overall employee well-being, lowering productivity and work quality. Globally, noise pollution costs the economy about US$ 5 trillion a year in lost productivity [3]. In the US alone, productivity losses due to environmental noise already exceed US$ 81 billion [4].

Companies that neglect their workers’ health and safety may suffer reputational damage, making it harder to recruit and retain top talent. This affects both the employer brand and public perception of the company.

OTOH’s Continuous Sound Monitoring: The Solution for Managing Noise and Complying with NR1

Given the challenges posed by workplace noise and NR1 requirements, OTOH offers a modern and comprehensive solution: continuous sound monitoring. Our services are designed to transform the way companies manage noise, ensuring compliance, protecting employees’ health, and enhancing operations.

AI-Powered Smart Sensors: Our sensors are easy to install and use artificial intelligence to identify noise sources, enabling active and remote management. This means you don’t just measure noise, you know where it comes from and what causes it.

Real-Time Data, 24/7: With a user-friendly platform available on any browser, you access real-time data. This clear vision enables quick, effective decisions, identifying problems before they get serious.

Personalized Assessment: OTOH does not offer one-size-fits-all solutions. Our team of acoustics specialists assesses your specific needs, suggesting the optimal number of sensors and the best installation points, so you get a complete understanding of sound in your environment.

Reduced Risks and Costs: By identifying and managing noise efficiently, your company significantly reduces the risks of fines, lawsuits, and accidents. Moreover, optimized management can lead to long-term cost savings.

Greater Well-Being and Productivity: A workplace with controlled noise directly contributes to employee well-being, resulting in greater focus, clear communication, and naturally, increased productivity.

NR1 is clear: managing workplace risks is an ongoing and comprehensive responsibility. Noise, with its subtle yet harmful effects, demands special attention. Failing to manage it is not just a health risk for workers but also a legal and financial issue for companies.

With OTOH’s continuous sound monitoring, your company not only meets NR1 requirements but goes beyond, creating a safer, healthier, and more productive work environment. Invest in smart noise management and turn a challenge into a competitive edge for your business.

NR1 is the Regulatory Standard that sets out general guidelines for managing occupational risks in Brazil and serves as the foundation for all other NRs.

Why is noise an important risk under NR1?

Noise is a physical agent that can cause serious health problems for workers (such as hearing loss, stress, and cardiovascular issues) and create legal and financial consequences for companies that fail to manage it properly.

How can OTOH help my company comply with NR1 regarding noise?

OTHO offers continuous sound monitoring using smart sensors and artificial intelligence that allow you to identify noise sources, access real-time data, and implement effective control measures—ensuring compliance and a safer work environment.

What are the benefits of OTOH’s continuous sound monitoring?

Benefits include risk and cost reduction (fines, lawsuits), improved employee well-being and productivity, personalized assessment of company needs, and real-time data access for quick decision making.

[1] European Environment Agency. Environmental noise in Europe 2025. Available at: https://www.eea.europa.eu/en/analysis/publications/environmental-noise-in-europe-2025. Accessed: Jul. 7, 2025.

[2] Tema 555/stf. Available at: https://jurisprudencia.stf.jus.br/pages/search?base=acordaos&sinonimo=true&plural=true&page=1&pageSize=10&sort=_score&sortBy=desc&isAdvanced=true&origem=AP&classeNumeroIncidente=ARE%20664335. Accessed: Jul. 7, 2025.

[3] Silencio Network. The Real Cost of Noise: How it Affects Us All. Available at: https://silencionetwork.medium.com/the-real-cost-of-noise-how-it-affects-us-all-c8b5046c9a80. Accessed: Jul. 7, 2025.

[4] PMC. Valuing Quiet: An economic assessment of US environmental noise .... Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC4819987/. Accessed: Jul. 7, 2025.

[5] Governo Federal. Norma Regulamentadora No. 1 (NR-1). Available at: https://www.gov.br/trabalho-e-emprego/pt-br/acesso-a-informacao/participacao-social/conselhos-e-orgaos-colegiados/comissao-tripartite-partitaria-permanente/normas-regulamentadora/normas-regulamentadoras-vigentes/nr-1. Accessed: Jul. 7, 2025.

Discover how noise management is essential for compliance with NR1, occupational health, risk reduction, and operational costs. And how continuous monitoring can be the best tool for effective noise management.

NR1 and Workplace Noise: Why Taking Care of Sound is Essential for Your Business and Everyone’s Health

How real-time noise monitoring transforms construction management and strengthens companies’ social and environmental responsibility.

For companies operating in urban areas and sectors such as construction, noise control has shifted from a secondary concern to a top priority. Effective noise monitoring not only contributes to the well-being of surrounding communities but also protects company operations from legal risks, complaints, and potential shutdowns. In this context, continuous monitoring emerges as a modern and indispensable solution, enabling active and preventive management of noise levels. By combining innovation and accessibility, OTOH offers a platform that simplifies sound monitoring and delivers tangible results in efficiency and environmental compliance.

The Challenge of Noise Control in Operational Environments

Constant exposure to noise is a well-documented problem that affects millions of people across Europe and has impacts that go beyond discomfort. Chronic noise, especially that originating from urban roads and industrial activities, is linked to a number of health issues like cardiovascular diseases, sleep disorders, and increased stress, according to data from the World Health Organization (WHO). In the construction sector, these issues are even more prevalent due to the use of heavy machinery and the proximity of projects to residential and commercial areas​​.

Beyond community impacts, intense noise poses a direct risk to the health of construction workers. Prolonged exposure can cause hearing loss, increased blood pressure, and chronic stress, compromising workers’ well-being and safety. For Health, Safety, and Environment professionals (HSE), the challenge of monitoring and managing these noise levels is fundamental, as inadequate control can lead to unhealthy work conditions, higher rates of leave, and physical strain.

For professionals overseeing large-scale projects and infrastructure works—such as engineers, quality managers, and HSE specialists—the absence of accurate noise control can result in costly corrective actions, community conflicts, and harm to corporate reputation. In fact, studies show that without proper monitoring, regulatory compliance and adherence to noise limits are compromised, increasing operational and legal risks​.

Continuous Monitoring: How Does It Work in Practice?

Given these challenges, continuous monitoring stands out as a key tool for companies seeking to remain aligned with environmental and health regulations. Instead of isolated assessments, continuous monitoring uses strategically placed sensors that capture real-time noise data, generating ongoing insights for proactive management.

The OTOH platform incorporates an advanced Artificial Intelligence tool that automatically identifies noise sources exceeding set limits. With these valuable insights, managers can visualize critical noise areas and times, allowing for quick, precise operational adjustments. The data is presented in user-friendly visual reports and simplified graphs, making it easy for the entire team to understand regardless of technical background.

This technology reduces the need for frequent manual inspections, optimizing teams’ time and enabling proactive, targeted noise management in an efficient and regulation-compliant manner.

How Can Continuous Monitoring Benefit You?

OTOH’s continuous monitoring technology was designed to deliver tailored benefits for each project area, from engineers and quality managers to legal professionals.

For site engineers, 24/7 monitoring provides a detailed view of noise impact throughout different construction phases, enabling operational adjustments that minimize noise and maximize efficiency. For example, by detecting spikes at critical moments, the team can adjust schedules or implement acoustic barriers, keeping the project within noise limits and avoiding unexpected stoppages.

For quality and HSE managers, the platform helps maintain a level of control that not only meets regulatory standards but also ensures a safe workplace in line with Health, Safety, and Environmental best practices. OTOH’s precise data supports ongoing monitoring of noise limit compliance, minimizing occupational health risks, preserving the company’s image, and showcasing a commitment to sustainability and community well-being.

For legal professionals, continuous monitoring represents an essential database for litigation or audit scenarios. In disputes, OTOH’s reports serve as evidence of the company’s compliance with noise regulations, reducing the risk of penalties and strengthening the defense’s case. These robust, organized data sets are critical for legal teams in cases related to environmental and community impact​​.

Real Impact Example: When Continuous Monitoring Makes the Difference

A practical example of the impact of continuous monitoring occurred at an urban construction site, where a building company faced a lawsuit from the Public Prosecutor’s Office due to neighbor complaints about noise. The project was halted, threatening its continuation. By implementing OTOH’s Real-Time Sound Monitoring tools, the construction company began collecting detailed data on noise levels, enabling precise analysis of critical sources and times.

Armed with these insights, corrective actions were taken, such as adjusting the operation schedule and strategically relocating pumps and equipment within the site, significantly reducing the noise impact. The reports generated by OTOH demonstrated the company’s commitment to noise mitigation, which helped resume activities and lift the shutdown. Long-term monitoring was maintained until the end of the project, preventing new conflicts and strengthening relationships with both the community and authorities. This real-life case shows how OTOH technology turns challenges into practical solutions, protecting company reputation and ensuring project continuity.

Continuous Monitoring and Social-Environmental Responsibility

OTHOH does more than provide a technical solution—it is dedicated to socially and environmentally responsible practices that foster healthier environments for all. Continuous monitoring technology directly supports sustainability by enabling strict noise control, respecting local wildlife, vegetation, and the well-being of nearby communities. By complying with health and environmental regulations, companies using OTOH show a clear commitment to sustainability and to the Sustainable Development Goals (SDGs), contributing to community health and quality of life​​​.

How Can Your Company Transform Noise Management and Avoid Project Shutdowns?

Lead the way in efficient noise management and avoid legal and operational risks. With OTOH’s continuous monitoring, you bring innovation to the core of your operations, turning data into strategic decisions while preventing conflicts with communities and regulators.

Interested in seeing how our platform can transform your team’s noise management? Get in touch and request a demo to discover OTOH’s benefits and features firsthand.

Phone: (11) 2780-0323
Email: contato@otoh.com.br

This article demonstrates how real-time noise monitoring transforms construction management and strengthens companies’ social and environmental responsibility. We discuss the challenge of noise control in operational environments and how continuous monitoring can benefit your business in practice. With examples of how continuous monitoring makes a difference and has real impacts on companies, and how it demonstrates social-environmental responsibility, plus an explanation of how your company can transform noise management and avoid project shutdowns.

Continuous Monitoring: Reducing Risks and Enhancing Operational Efficiency

If you work in the construction industry in the city of São Paulo, you’ve certainly heard about Decree No. 60.581, which regulates construction noise emissions in the city. You might even be familiar with the document and have memorized the established noise limits. Even so, you probably still have many questions about what needs to be done to comply with the noise decree.

In this article, we aim to explain the rules of Decree No. 60.581 in a straightforward way and introduce a noise monitoring system that can help you take action in real time, ensuring that the noise produced at your site stays within the decree’s established limits.

Decree No. 60.581 – regulates construction noise control

Decree No. 60.581, published on September 27, 2021, “regulates noise control during the execution of construction works in the Municipality of São Paulo.” This means that every construction project subject to an Execution Permit in the city of São Paulo must comply with the noise limits set by this decree, except for certain situations we’ll present next.

If the provisions of the decree are not followed, violators are subject to penalties based on Article 146 of the Law No. 16.402 – Land Subdivision, Use and Occupancy Law, as outlined in item 12, Table 5, annexed to the LPUOS.

Noise emission limits set by Decree No. 60.581

It’s impossible to carry out a construction project without increasing the typical noise levels in the area. That’s why the decree states that “the worsening” of noise pollution will be considered normal due to the increase in noise-emitting agents (various types of machines and noisy construction activities).

Even though it’s understood that discomfort from noise is inevitable during construction, it’s essential to have regulations to ensure noise levels don’t exceed acceptable limits, especially during rest periods.

This is precisely the purpose of Decree No. 60.581, which sets noise emission limits based on days of the week and times. These limits are shown in the following table.

Cases not subject to the noise decree limits

Not all construction projects are required to comply with the noise emission limits set by Decree 60.581: specifically, public works and emergency works.

Other private civil constructions are also exempt from the limits in the following situations: loading and unloading, earthmoving phase, foundation, demolition, and structure, as long as the days and hours specified in the decree are respected.

If there is any violation concerning these times and days, which condition these two exceptions, the penalties described in Article 5 must be applied.

By the end of this article, you’ll be ready to take the necessary actions to avoid any trouble regarding your construction’s noise emissions and with noncompliance with the decree.

In any case, it’s important to clarify the penalties violators might face if the site’s noise exceeds the established limits.

To start, the decree considers violators to be “the property owner or holder, and, when applicable, the technical manager of the project.”

The penalties, as set out in Article 5 of the decree, become more severe with each recurrence:

1st notice: in addition to a fine (the amount set in the Table 5, annex of LPUOS), an official notice will be issued to stop the irregularity.

2nd notice: if the violation recurs, the fine will be double the previous amount and another notice will demand the issue be resolved.

3rd notice: the third notice results in a fine three times greater than the first and a shutdown of the project.

Recurrence means every infraction after the first for the same work, within a one-year interval.

Measurements to confirm compliance, as well as the issuance of citations, are carried out by PSIU – Technical Division for Urban Silence Inspection.

In cases where the violation persists, according to Article 7 of the decree, PSIU can take more drastic measures, referring the case to the Police Department, CREA or CAU, and the Department of Defense of the Environment and Heritage of the General Attorney’s Office of the Municipality (DEMAP).

How to avoid being penalized under the Decree 

The best way to comply with any noise emission law is through careful planning. For example, scheduling the noisiest phases for times when higher noise limits are permitted is a great start.

However, with construction projects, this planning can be tricky due to the range of phases, machines, and equipment involved.

Another complicating factor is that the duration of a project can range from months to two or three years (or more), depending on the size and complexity. This long period raises the chances of noise issues with neighbors, for example.

So how do you plan efficiently to ensure you won’t have noise problems? The answer is simple: monitor the noise emitted from your site!

To plan construction activities during less restrictive times, you need to know the noise levels emitted in each phase. There’s no way to do this except by measuring with proper equipment.

However, as mentioned before, a project goes through many phases, with various noisy machines, over long periods. So, a simple, short-term, or single-phase measurement isn’t enough. In construction, continuous, long-term monitoring is necessary.

At this point, you’re probably thinking long-term monitoring won’t be economically feasible for your project with its tight budget. This is where we introduce OTOH, a low-cost system developed specifically for this purpose: long-term noise monitoring.

Next, learn more about this system and how we can help you and your company avoid noise decree penalties and maintain good relationships with neighbors.

OTOH and construction site noise monitoring

OTOH is a smart, low-cost sound monitoring system that lets you check noise levels in real time. With strategically placed sensors on your site, you can analyze noise data through a user-friendly platform, using a computer or mobile device.

Monitoring noise levels in real time allows you to identify the noisiest sources on-site, leading to efficient activity planning and quick, precise action.

Finally, with the insights provided by OTOH, you’ll be able to clarify information for the local community, plan your construction activities, and have a secure tool to prove compliance with the limits set by Decree 60.581.

To learn more about this innovative noise monitoring system and get all your questions answered, get in touch with the OTOH team!

Decree No. 60.581, published on September 27, 2021, “regulates noise control during the execution of construction works in the Municipality of São Paulo.” This means that every construction project subject to an Execution Permit in the city of São Paulo must comply with the noise limits set by this decree, except for certain situations we’ll present next.
OTOH is a smart, low-cost sound monitoring system that lets you check noise levels in real time. With strategically placed sensors on your site, you can analyze noise data through a user-friendly platform, using a computer or mobile device.

São Paulo Construction Noise Decree: What You Need to Know!

OTOH offers a complete solution for sound monitoring, integrating state-of-the-art sensors with an intuitive digital platform. This combination of advanced hardware and intelligent software allows managers to ensure compliance with legislation, preventing legal issues such as fines and stoppages, and protecting the health of workers and the community, whether in construction sites, events, industries, or other environments that require noise control.

Our Technology
Innovative Technology for High-Precision Sound Monitoring

OTOH's intelligent sensors are plug-and-play devices designed for easy installation and high durability. They operate over a wide frequency range, ensuring high-quality, precise capture of all types of noise. With protection against weather and electromagnetic interference, our sensors maintain data integrity under all operating conditions. Data is processed on-site through our intelligent sensors, and the only information sent to the cloud is the sound pressure levels and source classification performed by artificial intelligence (AI).

Our solution is powered by advanced AI algorithms that analyze sound data in real-time. The AI can differentiate and categorize various noise sources, such as vehicles, heavy machinery, human voices, and other activities, providing detailed and specific insights into the sound conditions of the monitored environment. All this without recording audio, ensuring total privacy and security.

Our platform allows clients to monitor data in real-time, generate detailed reports, and integrate the results with existing management systems. Its autonomy is reinforced by the client's ability to conduct specific analyses as required by the project, all without continuously relying on technical support. Only registered individuals have access to this data, ensuring privacy and security.

Areas of Operation
Sound Monitoring Solution for Different Sectors

Noise management in construction sites, minimizing the impact on the neighborhood, avoiding fines, stoppages, and legal issues.

Noise monitoring in events, ensuring compliance with regulations and improving relations with the local community.

Noise assessment in indoor environments, which can improve comfort and productivity in corporate and educational spaces.

Industries
Industrial noise monitoring to ensure compliance with safety standards, preventing damage to workers' health and avoiding penalties.

How Our Sound Monitoring Works
Simple and Efficient Process

Contact OTOH to hire our sound monitoring service.

Our technical team installs the smart sensors at the construction site quickly and efficiently.

Monitor
Track noise levels in real-time through OTOH's digital platform and identify noise sources with our AI, ensuring permitted limits are not exceeded.

At the end of the contract, the OTOH team uninstalls the sensors, keeping the process fast and hassle-free.

Hiring Model
Our contracting model is flexible, allowing for short- and long-term agreements, adaptable to the specific needs of each client. We offer customized packages that include installation, maintenance, and continuous technical support.

Pricing
OTOH's sound monitoring services start from R$6,100.00, adjustable according to the scope and duration of the project. Our pricing approach is transparent, with no hidden costs, ensuring an excellent return on investment.


OTOH has a technical team composed of acoustic engineers and specialists with extensive experience in sound monitoring technologies. Our expertise ensures efficient implementation and high-quality technical support throughout the project.

OTHOH Contact

Reduce the risks of poor noise management and promote community well-being with our sound monitoring!

Phone: (11) 2780-0323
Email: contact@otoh.com.br
Website: www.otoh.com.br




OTOH offers intelligent sound monitoring with advanced sensors and artificial intelligence to control noise in construction sites, industries, large events, and facilities. Ensure legal compliance, protect health, and avoid fines with our plug-and-play solution.

Intelligent Sound Monitoring: Noise Management in Construction Sites, Industries, and Large Events

The importance of sound monitoring for improving the quality of life of the population is an increasingly relevant topic today. With urban growth and population concentration in urban areas, excessive noise has become one of the main environmental problems faced by cities.

Excessive noise can have serious consequences for human health, including hearing loss, stress, insomnia, irritation, and cardiovascular problems. In addition, noise can also negatively affect the environment, causing damage to fauna and flora.

In this context, sound monitoring becomes a fundamental tool for urban noise management. OTOH is a monitoring service that uses its own sensors to capture real-time sound data and a digital platform that allows users to track noise levels, observe compliance with current regulations, perform analyses, and generate reports. 

OTOH's artificial intelligence allows for the safe and anonymous identification of the main harmful noise sources. In this way, reliable and easily understandable data can be obtained, resulting in knowledge and bases for short and medium-term noise management plans.

The data collected by OTOH's sensors can be used to improve noise management in various areas, such as noise from bars, large events, construction, industries, among others. With this data, it is possible to identify the main sources and implement measures to reduce noise levels.

In addition, sound monitoring can also be used to ensure compliance with current regulations, which establish maximum noise limits in certain times and places. With OTOH, it is possible to verify if these limits are being respected and to take measures to ensure the accomplishment of the requirements.

Another advantage is the possibility of generating reports that can be used for decision-making. Based on these analyses, it is possible to identify patterns and trends over time and make informed decisions to develop action plans.

By using cutting-edge technology to collect real-time sound data and make it available intuitively, anywhere, OTOH believes that intelligent sound monitoring can provoke a paradigm shift in the noise management landscape focused on health and well-being, and thus improve the quality of life of the population.

NR1 and Workplace Noise: Why Taking Care of Sound is Essential for Your Business and Everyone’s Health

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