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A sound level meter recorded unusually high noise levels at a construction site

At first glance, it seemed obvious that the construction activities were the source. 🚧 But when we listened to the audio recording from the same period, we got a surprise.

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It wasn’t an excavator. It wasn’t a jackhammer.

🚑 It was an ambulance driving past.

This experience highlights why noise monitoring is about much more than simply measuring decibels. We conduct noise measurements across a wide range of projects, and audio recordings are a crucial part of the process. 🎧 Not all noise necessarily originates from the activity being monitored. Ambulances, police sirens, traffic, or even people shouting can all influence the results.

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That is why we review the audio recordings as part of our analysis. 🔍

They enable us to verify that the recorded sound actually originates from the correct source and help us avoid drawing incorrect conclusions. At the same time, audio recordings help us identify the most significant noise sources. When we know exactly what is generating the noise, we can better assess whether measures can be implemented to reduce it. 📊

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Because when it comes to noise monitoring, it’s not enough to know how loud something is.

👉 It is just as important to know what is causing the noise.

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