Sound mp3 players and mobile phones may be too hard ‘




Sound mp3 players and mobile phones may be too hard ‘

Mp3 players and cell phones that can play music, can be much too hard, concludes the Food and Drug Administration. Therefore they do not meet the statutory noise requirements since this years ago. Especially cheap phones and players to break the law.

Since January 23, a European standard, which stipulates that mp3 players and cell phones sound up to 85 decibels can produce applies. The output voltage to the headphones may not exceed 27 millivolts. However, these standards are exceeded by many music players and mobile phones, as did the Dutch Food and Consumer Product Safety Authority concluded. Some MP3 players and phones could even produce more than 90 decibels.

If a device is able to produce more than 85 decibels measures must be taken: as the volume must be limited to 85 decibels software. There must also be warned of adverse effects. At high volume Of the 31 units surveyed, 26 did not meet the rules, according to the study. Which devices are in violation, it is not known: they are not mentioned by name. It is clear that mainly cheaper phones and mp3 players too hard.

Noise levels above 80 decibels can eventually provide deafness. With sounds above 100 decibels may also occur. Acute deafness When a maximum of eight hours per day to 80 decibels of noise is heard, enter no danger, according to the NVWA. If the noise level is higher, that period is shorter.

According to the National Hearing Foundation has 37 percent of youths between 12 and 25 years of poor hearing. In 2010 it was 30 percent. The foundation said to be shocked by the results compared with the NIS and wants determines which devices are in violation of the public.
noise measurement nVWA


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