For example, how to identify the sound quality of headphones, and how to distinguish the sound quali

Find a pure ** with a sharp voice, and it's good if there is no noise.

We often use headphones, but do you know how to tell if the sound quality of headphones is good or bad? I believe that there are many friends who can't accurately distinguish it, and can only judge the quality from the **, so today I will explain to you how to identify the sound quality of the headphones, as well as the precautions for the use of headphones, come and learn!

1.Frequency response: This parameter is one of the most important indicators to evaluate the quality of headphones.

2.Maximum sound pressure level, or sensitivity: both parameters mean the same thing. The higher the sensitivity, the easier it is for the earphones to sound and the easier it is to drive.

3.Whether it is durable to hear: good headphones, because the sound is very real and natural, just like the sounds of nature we hear in our daily life, people are not easy to get tired.

4.Whether the resolution is good: With good headphones, you can hear many details, such as a small vocal chorus, the friction of hands against the strings, the sound of ventilation while singing, etc.

5.Whether the sense of presence is good: Good headphones will make you forget the earbuds'Exists, you will feel the feeling of being there in person.

Musical instruments and vocals come from different directions, and the sense of scene is very strong. If you think the sound is coming from the headphones, then the headphones are so-so.

6.Headset material: The material is not the same as the headset is good, but the material is not good, the headset is definitely not good, these include workmanship, headphone materials, etc.

1. A scientific study in the United Kingdom has shown that wearing headphones to listen to songs for a long time can lead to deafness 30 years earlier. Try to listen in a quiet environment** and try to avoid some noisy places. Experts believe that once the external environment becomes noisy, the output effect of the headphones will be disturbed to varying degrees; In quiet environments, the output sound of several headphones is almost the same.

2. It is best to choose headphones with headphones, which have less damage to hearing than earbuds. There is also a point in the purchase of headphones. Pick headphones that block out external noise to reduce the chance of increasing the volume of your Walkman due to ambient noise.

Headphones are best chosen headphones, which are less damaging to hearing than earbuds. Because the earbuds are directly plugged into the external ear canal, the sound has no source, and it is sent to the eardrum, and all the sound is received by the eardrum, which is more damaging to hearing.

3. When wearing headphones to listen, the volume should not exceed 60% of the maximum volume, and the continuous listening time should not exceed 60 minutes. “People who often wear headphones to listen to ** should master a '60-60 principle', which is also a relatively internationally recognized method of hearing protection. That is, when listening**, the volume should not exceed 60% of the maximum volume, and the continuous listening time should not exceed 60 minutes.

In such cases, it is healthier to use the ear.

The sound quality parameters of the headphones are very important, provided that the parameters of the headphones have the value of comparison. The parameters of headphones that are counterfeit and high imitation brands cannot be trusted. We try to choose as follows when choosing** for more quality assurance.

1.Signal-to-noise ratio

Generally speaking, the higher the signal-to-noise ratio, the smaller the noise mixed in the signal and the higher the sound quality of the sound playback, otherwise the opposite is true. The signal-to-noise ratio should generally not be lower than 70dB.

2.Headphone sensitivity

The higher the sensitivity, the less power is required to reach a certain sound pressure level, and the sensitivity of dynamic monitor headphones is generally above 90dB MW, and if you are choosing headphones for your Walkman, the sensitivity is best around 100dB MW or higher.

3.Frequency response

Refers to the frequency range that the headphones can perform, the general value is 20-20000hz (bass-treble), for example, 12-39000hz means that the headphones can show more audio details, the sound is "more real", 30-17000hz means that the details of the audio segment below 30hz can not be distinguished by the headphones, but the bass effect is very "heavy" and weighty, and the treble situation is similar.

4.Total harmonic distortion

It shows the sound quality of the headphones is stable, clear and fidelity, for example, the index of a certain headset marked as "less than or equal to is quite good, and the general headphones are left and right, the smaller the value, the better."

5 wires

Medium and high-end walkman headphones attach great importance to the wire, and different cables have a great impact on the sound quality; Another important issue is the length of the thread, when buying to fully estimate the length that suits you, if you plan to always hang *** around the neck or in the pocket of the jacket, then make up your mind to choose, and if you want to put the machine in the bag or pants pocket, you have to choose the long line.

So only a few of them can be highlighted. x0d x0a as for what to call the effect good. A good listen to yourself is a good effect.

Find your favorite style of headphones, and that will be enough. The X0D X0A plug is also more important, because it affects the final performance of the sound, as the general connector is. Be tightly connected.

It is better to have a smaller impedance, and many headphones use gold-plated connectors here, which is the reason.

The easiest way is to play a game of chicken or listen to a song, if you hear a gunshot while playing chicken, but you can't hear it in which direction, or you feel a little noise when you listen to the song, then such headphones are generally not very good!

ps: How much money did you spend on the headphones you bought, don't you have a b number in your heart?

Auditory marker: bass drum beat.

Generally speaking, bass refers to the sound with a frequency below 250Hz, and the bass mainly ensures the fullness and thickness of the sound. Although there are many instruments that cover the lower frequencies, we often use the drum beat, especially the bass beat, as a marker when listening to the sound. This is not only because the drum sound is mainly concentrated in the low register, but also because the drum beat often controls the rhythm of **, and at the same time, its special sound is also easy to distinguish, especially for beginners, it is easy to hear the "dong dong" drum beat from **.

Mediant. Auditory marker: human voice.

The midrange generally refers to the sound of 250Hz 5kHz, and the frequency spectrum of the main instruments covers this frequency, which also makes it the most informative frequency band. Vocals are undoubtedly the best markers in the midrange, not only because they are the most central part of the song, but also because it is often easiest to hear how well the details perform and whether there are defects in the most familiar sounds. For beginners, listening to human voices is an introductory course in listening.

Treble. Auditory marker: string overtones.

Treble refers to the sound of 5kHz 20kHz, and this frequency band controls the brightness, macro brightness and clarity of the timbre. The absence of this frequency band can muffle the sound and lose detail. If we look at the musical instrument spectrum, we will find that almost no musical instrument can directly produce high notes, so where does the high notes in ** come from?

In fact, a musical instrument can produce overtones with multiples of basic tones at the same time, such as when playing the lute, not only the strings are vibrating, but the strings are 1 2, 1 3, 1 4 ......It also vibrates, which makes it produce a higher frequency sound, which is called an overtone. Of course, as the frequency increases, the intensity of the overtones decreases. In other words, listening to the treble is actually listening to the overtones of the instrument, the human voice.

Among them, strings are rich in overtones, so when listening to the treble for the first time, strings are preferred.

1. The frequency range of sound that can be heard by human ears is 20Hz (low frequency) - 20000Hz (high frequency). Although a person cannot hear sounds beyond this range, they can perceive them through their bodies. Therefore, many people think that the wider the sound frequency range (frequency response range) provided by the headphones, the better the sound quality of the headphones will be accompanied by the clear.

2. In fact, compared with the frequency response range, when the earphone reproduces the sound, whether the performance of the three frequencies (high frequency, medium frequency, and low frequency) is balanced is the most important criterion for judging the sound quality of the earphone. For example, the classic headphone Yintemei ER4, its frequency response range is 20Hz-16000Hz, which is smaller than the range of many headphones on the market now, but this does not affect its excellent sense of balance of three frequencies, as well as the excellent sound quality experience it brings.

3. In the three frequencies, the low frequencies can be understood as the feeling of a subwoofer. The headphones sound high-quality low frequencies, dive deep, textured and do not feel the discomfort of a buzzing head.

4. If the high-frequency (treble part) of the earphone is well extended, delicate and translucent and not harsh, it indicates that the high-frequency sound quality is very good;

5. On the basis of the first two points, the high-frequency, medium-frequency, and low-frequency of the headphones are clearly distinguished, and the excess and fusion are very natural.

Many people pursue the sound quality of headphones, and headphones at different prices have different sound quality, judging the quality of headphones, mainly from the perspective of frequency response, resolution, etc., so, is there a big difference between good and bad sound quality? I'll introduce you below.

How to judge the quality of headphones.

The quality of a headset mainly comes from these aspects, first of all, whether the frequency response and resolution are good, which is one of the very important indicators to evaluate the quality of the headset. Look at the earphone as a whole, for example, the whole sound of the earphone sounds well-balanced, the timbre is never too bright or too dark, the high, medium and low frequencies of the headphones with good resolution can be distributed in a balanced manner, and the fusion between frequency bands is natural and smooth, without abruptness and glitches. It will make you forget the existence of earbuds, and the instruments and vocals come from different directions, and the sense of presence is strong.

For example, the sound of hands rubbing against the strings, the sound of human breathing, the sound of lips and teeth touching, etc. It's like a singer singing to you in your ear, and you can hear a lot of details restored, as if you were there.

The second is sensitivity and impedance and whether it is durable, in simple terms, the higher the sensitivity, the louder the sound will be, and the smaller the impedance, the easier it is for the headphones to be driven. Good headphones, because the sound is very real and natural, just like we hear the sounds of nature in our daily life, people are not easy to get tired. If you always feel that you are wearing headphones and that the sound is coming out of the headphones, then this headset is average.

There are also things like distortion, high-frequency stuffiness, harshness, dizziness, etc.

In addition to the above factors, the material and shape of the earphones will also have an impact on the sound quality of the headphones. At present, most of the headphones on the market are made of plastic and metal. Generally speaking, headphones with a plastic case are much cheaper than headphones with a metal case, but if the headphone case is made of all-metal cutting, it is quite high.

Is there a big difference between good and bad sound quality?

Big, really big.

Some netizens said that headphones of different prices, I have heard Bluetooth headsets for dozens of dollars before, which are simply explosive and hurt my ears; I've also listened to 99's wired headphones, it's okay, it's a bit boring; I have listened to 599's wired headphones, which are obviously brighter and clearer than 99's, and it's really cool to listen to those with more prominent voices; I've heard 200+ Bluetooth headsets, it's okay, but the sound quality is not as good as wired, mainly to meet the convenience, and it's incredible that there is noise reduction, so I think 200+ is already super cost-effective; I've heard 1400's headset bluetooth headset, it's very banging, because with this, I really like to listen to rock, super hi, except for inconvenience.

Improving sound quality costs money, and it's a lot of money.

Take a look at your wallet before you improve your sound, and then see if you really need these?

Headphones on the market that cost dozens of dollars may not be good in sound quality.

But one or two hundred, it's enough.

No matter how bad it is, five or six hundred is enough.