SafeNoise
Bedrijf: Cauberg-Huygen Grootte: 1.38 MB Versie: 1.1 App Type: iPhone / iPod Touch |
Beschrijving
Sometimes you wonder if the sound level you are in, is bad for your ears. SafeNoise shows you when you are at risk of hearing damage. The app measures the sound level and shows how much time you can safely stay in this sound level. The limit used is 80 dB(A) over a period of 8 hours (European legislation). If the Residence Time in the app is down to 0 and the face of the worker icon turns red, it is recommended to start wearing hearing protection or to take distance from the noise source.
This app is developed by Cauberg-Huygen in cooperation with the Dutch “Nationale Hoorstichting” (National Association for Hearing) and Bruel & Kjaer.
To measure correctly:
* remove the protective bumper of the iPhone
* point the mic of the iPhone or iPad in the direction of the noise
Disclaimer:
The developers aren’t responsible for any hearing damage suffered while using this app. SafeNoise is calibrated with a class 1 sound level meter ( B&K 2250). The accuracy of the measured sound level depends on the position and quality of the microphone. In laboratory circumstances, the difference is smaller than 1 dB(A) if the sound level is between 75 and 90 dB(A). The differences are bigger in normal life. SafeNoise isn’t a replacement of a professional sound meter. The IPhone 4 is limited to 95 dB(A).