Noise spectrum analyzer experiment proves that playing with sounding toys for a long time damages hearing

Recently, a mother in Changsha found out that her baby's hearing loss, and the culprit was the cradle that the children liked to sit in. As soon as the news came out, parents paid much attention, but when people turned their attention to the rocking car, did you overlook something? Those are the little vocal toys that children will come into contact with in their daily lives. Regardless of the small size of these little toys, but the sound they make is not small, then how loud is the noise generated by these little toys? Will it cause harm to children's hearing? The Hong Kong Economic Journal will find answers for you through experiments. Experimental equipment: Noise spectrum analyzer 　　 Experimental method: Detect the toys provided by the public that make noises that children play at home at ordinary times, and look at the average noise generated by these toys in 10 seconds. (Note: In order to make the experimental results more accurate, no one was talking at the time of the reporter's test) 　　 Noise standard: A volume of 30-40 decibels is a normal environment; more than 50 decibels will affect sleep and rest; more than 70 decibels will cause upset , Lack of concentration; long-term work or living above 90 decibels will seriously affect hearing and cause other diseases. Expert interpretation: Xu Hong, chief physician of the Otorhinolaryngology Head and Neck Surgery Department of the Second Affiliated Hospital of Nanchang University (special statement: the results of this experiment are only responsible for this experiment) 　　 investigate children's preference for sound-producing toys. Recently, the reporter visited several toy stores in Nanchang City. It was found that when parents were buying toys for their children, they had not paid attention to whether the decibels of noise produced by toys that made noises were too high, and they would buy them as long as the children liked it. In a toy store, the reporter saw a 2-year-old girl clamoring to buy a toy pistol that would make a noise. Every time the child opened the pistol, there would be a sound. The reporter felt that the sound was a bit loud, but the parents, children, and merchants did not care about it. Instead, the parents bought the goods after the price was negotiated. Another parent who took his child to buy toys said, “I have a lot of toys at home, most of which are bought by the elderly at home for the children. I usually buy books or educational toys for the children. For small sound-producing toys, I think it’s very noisy to play, so I don’t like children playing with these kinds of toys, but I really didn’t pay attention to whether it will affect hearing.” 　　 And a seller of toys told reporters that children prefer these games when buying toys. Toys that light up and make sounds. Regarding the question of whether the decibel noise from small toys will affect hearing, the business replied that these small toys should not have much effect. The children in the past also played with this. I have not heard of any other child playing these. The hearing of small toys has been affected.　　Experiment　　The noise level of vocal toys exceeds 60 decibels　　Does the noise decibels produced by vocal toys affect children's hearing? To this end, the reporter walked into the homes of citizens and conducted a 'physical examination' on the sound-producing toys that children usually play with.　　 The first toy to undergo a 'physical examination' was a toy gun that many children liked. When the reporter opened the toy gun, the toy gun made a lot of noise. Through professional instrument testing, the average noise generated by the toy in 10 seconds was 80.7 decibels. Seeing that the noise produced by the toy gun is so high, the The citizens also took out the toy chainsaw that the baby likes to play with, and finally measured the average noise of this toy to be 83.3 decibels. As for the fairy magic wand that girls like to play, the average noise is 65.1 decibels; the average noise generated by the singing duck is 71.4 decibels; the kitchen toy with music measures 71.6 decibels; the toy chicken measures 74.9 Decibels; the average noise generated by the elephant cart that children like to ride when playing music is 69 decibels.　　 And many mothers always like to use the early education machine to play music or stories before coaxing their children to sleep, so how much noise will this make? When the reporter turned the voice to the minimum, the measured average noise was 61.7 decibels; when the voice was turned to the maximum, the measured noise average was 68.1 decibels. Experts play with vocal toys for a long time to damage hearing. 'When a child is born, the cochlea structure is basically similar to that of an adult, but the development of the nerve center cortex does not become the same as that of an adult until about 10 years old. Therefore, it is still a developmental process before the age of 10. During this period, the nervous system is more delicate, and if it is stimulated by a louder sound, it will damage your hearing.' said Dr. Xu Hong, the chief physician of the Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University. In terms of data, the average noise produced by the above several sound-producing toys is above 60 decibels. If they are exposed to this environment for a long time, it will definitely affect the children's hearing.' Dr. Xu said that adults exposed to 85 decibels for a long time Sound volume can cause noise-induced deafness. As for the standards for children, there is no specific medical standard. In addition, Dr. Xu also suggested that parents should pay attention to choosing a sound-producing toy for their children with a volume below 60 decibels, and it is best not to exceed 10 minutes when children play with sound-producing toys.