Against noise and for better hearing protection: measure volume yourself with iOS


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The neighbor is annoying with his roaring motorcycle and the flat next door has its own ideas about room volume? In such cases, measurements help to objectively substantiate subjectively perceived noise as such. All you need is an iOS device and a suitable app, which is even available free of charge.

Of course, such measurement apps are not only used to resolve neighborhood disputes. They are also suitable, for example, to check at concerts whether the volume has already assumed harmful dimensions and it is better to put on ear plugs. In the workplace, too, the apps help to identify harmful noise pollution at an early stage. We’ll show you how to work with such applications.

We will explain a little later why such audio measurements already deliver amazingly precise results with the microphones integrated in iOS devices. To get started quickly, please download the free version of Decibel X from the App Store and launch it. In the lower half you can see a large, “analog” VU meter, as you may know it from old tape recorders or cassette recorders. In the middle there is a green “Play” button. When you tap on it, the app starts measuring the volume, the “Play” symbol changes into a “Pause” icon, which you can use to end the measurement.

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