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Ambient noise is a key parameter for assessing comfort and well-being in indoor environments. Far beyond being a minor nuisance, prolonged exposure to excessive sound can seriously impact health, productivity, and overall quality of life.
With the integration of our smart noise sensor in MICA, buildings can now benefit from real-time, continuous noise detection—enabling preventive action and a data-driven approach to acoustic comfort.
Noise is a physical phenomenon caused by mechanical waves travelling through the air. Their frequency determines the pitch (high or low), while amplitude defines the sound pressure level, perceived as volume and measured in decibels (dB).
Because noise levels constantly fluctuate, we rely on the equivalent continuous sound level (Leq,T) to assess the average noise exposure over a given time period (T). This method allows for more accurate monitoring of cumulative noise impact.
International bodies have established recommended thresholds to reduce the risks associated with indoor noise pollution:
According to Directive 2003/10/EC, daily noise exposure (Leq,8h) must not exceed 80 dB during an 8-hour workday.
The WHO recommends keeping background noise levels below 35 dB in classrooms during lessons to enhance learning and concentration.
While no global standard exists, organisations like WELL, ASHRAE, and ISO 3382-3 suggest maintaining sound levels under 40–45 dB(A) to improve focus, reduce fatigue, and limit distractions.
Based on health and safety regulations as well as studies on workplace well-being, My inBiot uses the following thresholds for interpreting noise data:
These ranges allow for clear, intuitive assessment of monitored indoor spaces.
Our noise detection sensor built into MICA provides a reliable estimate of the Leq using a frequency aligned with the device’s data acquisition capabilities. The sound pressure level is calculated in dB and visualised through our platform for easy interpretation and reporting.
This continuous acoustic monitoring complements other environmental metrics—like CO₂, humidity or VOCs—providing a holistic overview of indoor air and comfort conditions.
Indoor noise may originate from both internal and external sources:
Traffic, construction, industrial operations, or street activity.
HVAC systems, human conversations, office equipment (computers, phones, printers), and domestic appliances.
Soundproofing and acoustic insulation are key to blocking external noise, while reducing internal sources enhances the overall comfort of occupants.
Keeping noise under control has measurable benefits:
Chronic exposure to elevated noise levels can lead to:
These effects can be long-lasting or even irreversible if not addressed.
If the thresholds are exceeded, consider implementing the following strategies:
Prevent sound transmission between rooms with dedicated materials and structural adjustments.
Reduce echo and reverberation with soft materials (e.g. foam, wood) or acoustic panels.
Identify the source and ensure proper maintenance or replacement of noisy equipment.
Use a smart noise sensor like MICA to track sound levels, detect spikes, and implement corrective actions—ensuring compliance with acoustic standards and certification requirements.
Noise is a key performance indicator in sustainability and health-focused certifications such as WELL, LEED, and BREEAM. Integrating noise detectors into your building monitoring system helps:
A smart noise detection system is especially beneficial in:
