The baby's toys should also be carefully selected. Some toys may cause harm to the body, such as the sound made by some toys. Then, will acousto-optic toys have a bad effect on the baby's hearing? How much volume can't the toy exceed? Here is a brief introduction.
Will acousto-optic toys have a bad effect on baby's hearing
Generally not.
Overexposure to loud sounds may indeed cause sensorineural hearing loss in high-frequency hearing areas, but the risk depends on the intensity of the sound and the duration of exposure.
Different ages and individuals may have different responses to the same noise exposure, which is difficult to generalize. Therefore, when children grow up, they should try to avoid being exposed to loud and harsh noise for a long time.
Take listening to music for example:
When listening to music with headphones, the volume should not exceed 60% of the maximum volume, and should be limited to 1 hour per day. When using earphones, the volume should not exceed 70% of the maximum volume, and should be limited to 4-6 hours a day; Turn it to 80% of the maximum volume, and limit it to 1~2 hours a day. In this way, the neural hearing loss caused by noise exposure in daily life can be avoided to the greatest extent.
However, in general, the volume of acousto-optic toys is amplified and the sound intensity is not very high, so the overall risk should be small.
The toy volume cannot exceed
Many parents tend to ignore the noise factor when choosing toys.
Now many toys are integrated with modern science and technology such as sound, light and electricity. Although they are particularly attractive to children, they also hide the problems of noise pollution and harm to children's hearing.
Some of the following sounding toys have been tested in decibels, and the results show that the sound is beyond the proper range.
There are also some educational toys that can play music and songs in addition to playing. However, if the volume is high and the playing time is long, it will hurt children's ears.
Data shows that more than 30000 patients with acute severe deafness are newly added every year in China. The incidence of noise induced deafness in children and adolescents is increasing year by year.
Therefore, we should try to buy as few toys as possible, and the toy volume should be controlled below 70 decibels.
The ear is a rather delicate and fragile organ, and its ability to withstand auditory stimuli is limited. If children are exposed to noise for a long time, their hearing will be damaged temporarily or permanently. Parents should pay attention to the destructive power of noise to the inner ear, which depends on both the decibel value of the noise and the time of exposure to the noise. Sound exceeding 60 decibels is harmful noise. When we talk noisily, it is about 60 decibels, while the sound of cars passing by is 60-80 decibels.