The Walkman cannot be listened to more than once in a row

The ***** machines that make you inseparable can cause your hearing to be impaired, so do you need a reason to stay away from them? Although most of them are keen to enjoy songs with headphones for hours on end, it can also cause damage to the user's hearing while enjoying **. The headphones that can cause the greatest harm to the human body in ***** machines are the headphones.

According to Dr. Brian of Harvard Medical School in an article published in Ear and Hearing last year, he studied a variety of headphones and found that, on average, the smaller the headphones, the more power they output. Plug-in headphones, such as Apple's iPod random headphones, raise the volume by 9 decibels compared to those that are larger enough to cover the entire ear.

This may not sound like a big number, but since the decibel is logarithmic, it means that the difference between the two is about the same as the difference between an alarm clock (about 80 decibels) and a lawn mower (about 90 decibels). The second problem found in another study is that plug-in headphones are not as effective at blocking background noise as larger headphones that cover the entire ear, so the volume of the headphones needs to be increased.

But so far, the level of noise that the average ***** user will be able to withstand is unclear, yet just last month, a study of iPod users in Australia gave us some insight into this. According to the study conducted by the Australian National Institute of Acoustics, one in four people surveyed amplified the volume of their iPod to a level that could lead to long-term harm. However, one thing is certain:

Some say 1 hour, some say 4 hours, or even more, but under the premise of satisfying your desire to appreciate, you should try to wear headphones to listen as little as possible, and long-term continuous listening will definitely hurt your ears!

More than 4 hours will be bad for hearing.

It is not good to use it for a long time, so it is recommended that it should be like a class, with a little recess.

It can cause hearing loss, sometimes short-term, sometimes permanent.

The "Walkman" should not be used for too long, and the continuous listening time should not exceed 1 hour at a time, and the volume should not be too large.

Among the parameters of the earphones, there is a frequency response range parameter, such as 20 20000Hz, which indicates the frequency range of the sound that the earphones can express, which has nothing to do with the damage to the human ear, because the sound with too low or too high frequency is inaudible to the wide human ear. There is also a sensitivity (sound pressure level) parameter, such as 115dB MW (decibel milliwatts), which indicates the sensitivity of the earphone to the audio signal, theoretically the higher the value, the more sensitive the earphone, that is, when used in a small output power device such as Walkman Sanqiaohui, the easier it is to sound (of course, this is not absolute, because the impedance of the earphone also needs to be considered), so this parameter has nothing to do with the damage to the human ear. To protect your ears, don't turn on a lot of volume when the landlord uses headphones Let's introduce the knowledge of decibels, look carefully!

A suitable living environment should not exceed 4 5 decibels and should not be less than 1 5 decibels. According to the average person's sense of hearing, 0 2 0 decibels are very quiet, almost invisible. 2 0 4 0 dB is quiet, like a whisper.

4 0 6 0 dB average. Ordinary indoor conversation 6 0 7 0 dB is noisy and nerve-damaging. 7 0 9 0 decibels are noisy and nerve cells are destroyed.

9 0 1 0 0 dB Loud and hearing impaired. 1 0 0 1 2 0 decibels are unbearable, and a minute of deafness is temporary. Satisfied.

Some people use the Walkman for a long time, like to turn up the volume of the sail, play computer games with headphones on day and night, or often go to the discotheque, all of which can cause hearing damage. If you listen to songs with your Walkman for a month, your hearing may deteriorate, and there is even a risk of "noise-induced deafness". When playing games online, the harm of wearing headphones for a long time is the same.

Therefore, it is recommended that young people who love to listen to songs, when listening to the game with a Walkman** or wearing headphones, it is best to control the volume and hear others when listening to songs, and listen for about 20-30 minutes to rest for a while. To protect your hearing, reduce the number of trips to cabarets and discotheques. At the same time, the person concerned also reminded the public to pay attention to ear hygiene, such as the habit of picking ears frequently.

In addition, when swimming, bathing, and washing your face, you should pay special attention to prevent water from entering your ears, and if you feel that water is entering your ears, you should immediately jump sideways and one foot to let the water flow out, or gently put it in with a cotton ball stick to suck the water out. Some little girls like to prick their ears and eyes, and wear earrings, earrings and other decorations, which are also harmful to the ears. The skin and flesh of the ears are very tender, and there is a metal object hanging on them, which is easy to tear the ears when playing.

1. Check to see if it's out of battery first: change the battery or charge it for a while and try again

2 is not good contact.

3. Need to repair, home appliance repair department or after-sales service.

If it was good before, it must be that the circuit is damp, and the wind blows it apart, or you look at it.

It's not enough *** now to use this thing.

1. Check whether the mobile phone connection points and network parameters are set correctly, and try to replace the access points one by one.

2. Whether the GPRS service is enabled on the mobile phone. Or because the service has been suspended recently due to downtime or arrears, you can try to use your friend's card that can access the Internet on your machine and eliminate them one by one.

There are many players who complain that their ***** device is not long, especially when they go out to play with their Walkman, *** will strike after a while, which is very nerve-wracking. In fact, although the time of the Walkman has a lot to do with the performance of the hardware, different usage habits will also have an impact on the time of the Walkman. For ***** that use rechargeable batteries, at least once a month they are fully drained and fully charged, which will keep the battery active and extend its lifespan.

Also, keep the ** device cool. If the temperature of the body is too high, it will affect the continuous time of the battery, so try to use less leather cases, sponge cases and the like. If the temperature is too low, the molecular activity in the battery will decrease, and the service life will be shortened, and the temperature is best kept at about 25.

If you don't prefer sound, try to use EQ mode sparingly, as this will put a lot of load on the decoder chip. Be good at using the **list function, and spend a few minutes to make a list of your favorite songs, which can save you from repeating the next operation. Pay attention to adjust the backlight time, and set the backlight time to about 10 seconds, which can save power.

If you're out on an outing and the light is good, you can just set it off. Due to the different compression ratios, the current consumption is also different, and it will differ by about 10mA. A higher compression ratio consumes less current, whereas a lower compression ratio consumes more current.

When using ***, lock the *** key to prevent misoperation. Because *** is placed in a backpack or next to a pillow, because accidentally touching the power switch happens from time to time, you should lock the hold key in use to prevent the power supply from being wasted due to misoperation.

First, open the audio file you want. 2 8 Then create a new multitrack session. 3 8 Then drag the audio file into the track.

4 8 Right-click the mouse and select [Remix]. 5 8 Select Enable to remix. 6 8 [Target Duration] appears on the left side.

7 8 Adjust the time. 8 8 The time it takes to see the audio is extended.

The Walkman CD player was invented in 1982.

Although Sony launched a CD player as early as 1982, it was too expensive for few people to afford. In 1983, other companies launched CD players one after another, and the situation was very good, but this was only temporary. Most people are still addicted to the world of vinyl.

It wasn't until 1984 that Sony released a portable CD player and successfully entered the era of CD player popularity. Nowadays, there are fewer and fewer CD players.