Now that you use the headset for a longer period of time, you should belong to the office worker. Every day on the way to work, the earliest earphone is used. Will long-term use of the headset damage our hearing?
Long-term exposure of the ear to a noise environment of more than 80 dB(A) will rapidly increase the risk of high-frequency hearing damage to the ear. Noise-induced deafness may occur (Literature: Otorhinolaryngology, published by the Concord Medical University of China). Through various documents, we can see that with the increase in the use of portable music players and headsets in recent decades, the hearing loss of young people and the probability of ear diseases are actually increasing. If you use earphones to listen to music, you have caused youth The decline in human hearing is indeed indisputable. Does that mean that we should forbid the use of headphones to listen to music?
What kind of international joke, how could it not be used?
Among the various literatures about listening to music that cause hearing impairment, there are two frequently-presented sentences that are “excessive sound intensity†and “listening to music for a long timeâ€. Therefore, this is “person†and “objectâ€. In the author's opinion, the vast majority of items themselves will not cause any harm to people. The source of all injuries is how the person uses this “materialâ€.
Therefore, after reading a large amount of data, the author's conclusion is also very clear: the main reason for hearing loss caused by headphones listening to music is "users lack ear health knowledge and bad habits."
Headphone volume, headphone type and hearing impairment
Experts A said: "The people who need to wear headphones for a long time are advised to choose a headset because the in-ear earplugs are plugged directly into the external auditory canal. The sounds are not presented. They are all sent to the tympanic membrane. The sounds are all received by the tympanic membrane. Smaller area, the pressure on the tympanic membrane will be larger, so it will be more likely to cause damage to the hearing; and headsets are covered on the ears, the contact area is large, the sound can be transmitted through the air, but also through the skull Transmission, so when you hear the same volume, the pressure on the tympanic membrane will be relatively small, the stimulation of the cochlear cilia cells will be relatively small, and of course it is safer to use.â€
The author's comment: Well, in fact, the above point of view was summarized by the author, because many experts said that the words are not accurate enough... True, from the perspective of listening structure, in-ear earplugs will form a closed seal because they are inserted into the ear canal. In the space of the cavity, most of the sound waves will be absorbed by the tympanic membrane after being reflected. Subjectively, it may bring more damage. In contrast, the headset will vibrate the tympanic membrane and will also vibrate tissue around the ear canal. The sound (which is why you can still hear the sound even if you plug the ear), so you can achieve the same listening effect as the in-ear earbuds at low volume.
If you think about it, you can actually find out that this kind of view is actually based on a "quiet use environment." When we listen to music, if we want to hear the details of the music, then it requires the headset to make a sound that's better than the surrounding. The ambient noise is about 20 decibels high, and the noise in the indoor environment in our daily life is generally about 40-60 decibels. This requires that the sound from the headphones be 60-80 dB, if the internationally recognized 85 decibels is safe and secure. From the demarcation point of damage, in this noise environment, basically any headset will not cause damage to the hearing, and the headset can adjust the volume to be lower because it transmits more sounds, so it sounds It's more comfortable.
Select headset recommendations: If you use headphones indoors, you can try to choose a large head-mounted headset, if there is no other people in the environment (that is, no interference problems), you can choose to open or semi-open, because these headphones The sound is not only sent to the ear, it is also sent to the outside environment. The benefits are not only to make the sound smaller, but also to protect the hearing. Because the sound is sent to the environment, so you The left ear can also hear the sound of the right side unit of the earphone, and the right ear can also hear the sound of the left side unit of the earphone. This sound effect is closer to the placement of the 2.0 sound box, so the sound image will be more powerful. Clear, more accurate positioning, more natural sound field.
And if you are using it in a colleague’s office around you, it is recommended to use a headset with a closed large headset that is safer than in-ear security and will not quarrel with colleagues.
Of course, the disadvantage of headsets is that they are heavy, and they can hold down the hair. In the long-term wear, there will be sweltering. Therefore, the use of flat-type earbuds or in-ear earbuds is completely fine, as long as you adjust the volume to 85dB. Within it, there is nothing wrong with it.
Expert B said: "In-ear earphones are less harmful to hearing than flat-headed earphones or headphones. Under the same external environmental conditions, general flat-headed earbuds are 5-8 dB decibels, head-mounted. The sound insulation of closed large headphones is about 15 decibels, and that of in-ear earphones is about 20 decibels, and the sound effects of tailor-made ear plugs can reach about 30 decibels. Therefore, to achieve the same listening volume, the in-ear earphones are because of sound insulation. It works better, so the volume needed is small."
The author's comment: B. This point of view of course is also the author's summary... I'm doing my own rhythm with myself... because I’ve also seen some tangible data showing that earplugs can cause hearing impairment. The proportion is greater than that of the headset. However, all the reports did not mention ear-type or flat-type earbuds, and there is no indication of the environment in which they may be used. What may be done by others is a pure hearing impairment survey.
As Expert B said, flat-headed earbuds are generally soundproofed, so the emitted sound is more likely to be disturbed by environmental noises, such as in noisy public places, bus and subway rides, etc., in order to be able to cover the surrounding sounds. To be more clear, people will unconsciously adjust the volume to amplify the volume. The noise in the subway is 80-100 decibels. If you want to use a flat-headed earplug to hear the music, the volume should be at least 90 decibels or more. In daily life, whether it is on the bus, in the subway, or on the road, I believe we all have seen many people wearing earplugs and listening to music. Many of them often adjust their voices so much that they People can hear particularly clearly, so that long-term loud sound stimulation will give irreversible hearing damage, and even lead to inflammation.
Therefore, the in-ear earplugs are more suitable for "noisy use environment", it not only can block the impact of environmental noise on hearing, but also can listen to the music at the lowest volume, to achieve the protection of hearing. Of course, some people wearing in-ear earbuds will have a foreign body sensation, then you can choose a closed headset, and the current major brands have noise-reducing headphone models, can better achieve the protection of hearing. (Active noise reduction itself is also a kind of noise, some people can not adapt)
Well, the relationship between earphone volume, earphone type and hearing impairment is basically the same, so let's talk about listening time again!
Expert A said: “People who often wear headphones to listen to music should master a '60-60 principle', which is also an internationally recognized method of protecting hearing, that is, when listening to music, the volume should not exceed 60% of the maximum volume, continuous listening The time should not exceed 60 minutes."
Expert B said: “Continuous listening time should not exceed 1 hour. Do not wear headphones for more than 3-4 hours per day. Minors do not exceed 1-2 hours per day. After 30-40 minutes of wearing headphones, you should let Ears are fully rested."
The author's comments: Well, the above point of view the author fully agrees, and my life is doing so, "long listening to music" is definitely one of the culprits of hearing impairment, but many people do not pay attention to this point, often wearing a headset It was for hours, and even when you were sleeping, your name was good for sleep (this was also the case when the author was young), but nobody knew that after listening to sleep, the hearing system was not idle. It had been In working condition, a long period of high-decibel noise will inevitably cause damage to the hearing. Therefore, we do not really need to look for a horse to sleep and plug afterwards. It will not only hurt hearing, but it will cause hearing in the ear for a long time. Profile congestion, affect blood circulation.
Summary: Today's conclusion is very simple, the headset is the use of recommendations: according to their own use of the environment to choose the right headphone products, put the earphone volume as much as possible whisper, and reduce the time for a single listening to music, let the ear fully rest.
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