Audible toys are fun for kids, but do you know that audible toys harmful to the child's hearing. For noise that exceeds the threshold of hearing and takes place in a long time and repeatedly can cause permanent hearing loss.According to the results of research conducted by Aalen University in Germany in cooperation with the Hear the World, from 28 popular children's toys are available in five different countries, including music boxes, toy cars, action figures, kids cell phones and microphones, squeaking duck, educational games, tools, toys and musical instruments vibrate. The result: many of the toys tested are not dangerous - but there are still some naughty items among those who produce a volume of about 130 decibels. This is the same noise level generated by a jet taking off, which can cause hearing damage can not be repaired within a very short time.
The tests revealed that five of the six U.S. toys that are on the list of the Top 10 toys tested loudest. However, only two of these toys to more than 95 decibels, the level of potentially dangerous - an air horn with a maximum volume of 132.5 decibels and mailboxes studied at 105.3 decibels. “At these kinds of noise levels, there is definitely a risk of irreparable hearing damage. There are other toys which reach similar volumes, although you would never suspect it. “In the past, for example, we have tested squeaking ducks that reached volumes of up to 130 decibels and toy whistles that produced up to 126 decibels,” says Annette Limberger, Profesor Audiologi di Aalen University di Jerman.
So the volume of what is safe for children? At what level of sound becomes harmful to hearing? According to Prof. Annette Limberger, if the assumption that the average child to play 30 minutes, then the volume above 95 decibels can be classified as potentially dangerous. This equates to a noise level of a passing train. If the volume is more than 100 decibels, the volume can cause hearing loss caused by impulse noise.
There is another phenomenon that Prof. Limberger expressed, that one problem with loud toys are the children become accustomed to high noise levels from an early age. This can lead to changes in their psychosocial behavior. These children can barely tolerate being in a quiet environment, or often suffer from attention deficit disorder.
Therefore, when you buy quiet toys, toy test by pressing a button demo is accessed through the packaging. Perception of your own voice is a good indicator of the level of sound produced by the toy. It's important to create a "quiet room" for children at the earliest possible age at which they can find the solitude that can be fun and noise are not always a fun and positive. Brains and ears need regular breaks to recover from noise exposure.
Impulse noise is much more harmful than continuous noise at a certain level. Therefore deserves to be very careful when choosing toys with sound effects and a high maximum volume, such as a whistle, air horn, trumpet, etc.
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