How to identify a good headphones

A headset the advantages and disadvantages of the external factors can not decide, some materials and some structure of use does not represent what, good headphone design is modern electroacoustics, materials science, ergonomics, and the perfect combination of stereo aesthetic. - evaluation of headphones

For the evaluation of a headset we need through the objective test and subjective listening rear can come to the conclusion. Headphones objective tests including frequency response curve and impedance curve, square wave test, intermodulation distortion, etc.

Today, we will only discuss headphones subjective listening evaluation, this is our the steps necessary to choose the headphones.

To correctly appraise the headphones sound must first understand the characteristics of the headphones sound. Headset speakers can not match advantage, phase distortion is small, wide frequency response, transient response is good, rich details, can restore the exquisite realistic sound. But headset has two shortcomings, two features of accurate said this was the headphones, they are determined by the physical location relative to the human body the headset.

The first characteristic is: "in effect" headphones.

Headphones build acoustic environment is not by nature, the nature of sound waves is interact with the person's head and ears in the ear canal, headphones sound directly into the ear canal; While most record is made for sound playback, audio and video on the two speakers even wiring due to these two reasons we use headphones will feel audio-visual form in the header, listening is not natural, easy to cause fatigue. Headphones "in effect" can be improved through the use of special physical structure, sound field simulation software and hardware in the market, there are many.

The second characteristic is: low frequency of headphones.

Under the low frequency section (40 hz - 20 hz) and ultra-low frequency (20 hz) is through the body of perception, the human ear is not sensitive to the spectrum. Headphones can perfect the replay this low frequency, but because the body cannot feel low frequency, can let a person feel the headset of low frequency. Since the earphone is different way of listening to speakers, headphones to sound equalization has its unique way. Headphones high frequency is generally improved, so that gives a person the sense with detailed sound balance; A low-frequency completely flat earphone often can let a person feel lack of low frequency, thin voice, improve low frequency are also means of headphones frequently used appropriately, so that we can make the headphones sound appears plump, low frequency dive deep. This means is the most commonly used light headphones and earbuds, their small diaphragm area cannot let out a deep low frequency, low frequency through ascension in the middle (40 hz - 80 hz) can get satisfactory effect of low frequency. Real voice is a good thing, not necessarily in the two methods are effective in the design of headphones, but too much of a good thing, if excessive ascension will destroy the sound sense of balance, high frequency and low frequency stimulation sound likely to lead to fatigue. Intermediate frequency for the headset is a sensitive area, the music of the most abundant information, is also the most sensitive to the human ear. The design of the headset to treat intermediate frequency is cautious, some low-grade headphones its frequency response range is limited, but on the mention of intermediate frequency and low get bright and sharp tone and turbidity, powerful voice, caused the appearance of high frequency is good, long time listening to the headphones, will feel dull.

Good headphones sound should have the following features:

A sound, pure, without any unpleasant "slish", "om", "to" sound.

Second, good sense of balance, tone from bright or too dark, however, low frequency energy distribution uniformity, high school band fusion between natural and smooth, no abrupt and burr.

Three, good high frequency extension, is exquisite and smooth.

Fourth, the low frequency dive deep, clean, full of elasticity and strength, no fat and slow.

5, intermediate frequency distortion tiny, transparent and warm, human kind nature, thickness, magnetic, literally dental and twang.

Six, resolving power is good, rich details, small signal can also clear replay.

Seven, have good ability of acoustic field depicting, acoustic field is open, instrument is accurate, and stable and sound field in enough amount of information, and you won't feel empty.

Eight, there was no obvious compression, dynamic has a good sense of speed, no distortion or distortion under the volume is small.

Such a headset can perfect replay any type of music, and music have good like real degree, long-term use does not cause fatigue, can make the listener immersed in music.