How Do ANC Earphones Make the World Quieter?

Our lives are full of all kinds of noise: the sound of subway trains hitting the tracks, the sound of car and bus engines turning, the noise of crowds in waiting halls...

On the one hand, these noises distract our attention and reduce the efficiency of work and study. On the other hand, they directly endanger human health and have adverse effects on the human cardiovascular system, nervous system, and endocrine system. Therefore, some people call noise "deadly chronic poison".

To eliminate these annoying voices, people have thought of many ways. In recent years, ANC noise-canceling earphones, which have been popular in the field of electronics and digital, are a great tool to fight against noise.

Major digital brands such as Apple, Sony, and Huawei have launched ANC noise-canceling earphones products. Do these ANC noise-canceling earphones solve the problem of ambient noise? Let's first understand the working principle of noise-canceling headphones.

The Working Principle of ANC Noise-Canceling Earphones

Marx believed that there are complex reasons for the development of things, and internal and external factors are important manifestations of this complexity. There are also different internal and external reasons for the noise reduction process. From this philosophical perspective, it can make people more deeply understand the principle of ANC noise-canceling earphones.

• Internal cause

The nature of noise, like ordinary sound, is a wave that travels through the air. Just like all other waves, the sound waves corresponding to noise have the same properties as waves.

Intuitively, the higher the amplitude of the sound wave, the louder the volume heard by people, and the higher the frequency of the sound wave, the higher the pitch heard by the human ear.

Because of the nature of noise waves, people can use various methods to reduce the amplitude of the sound waves carrying the noise, thereby reducing the decibel of the intuitively perceived noise.

• External cause

In principle, the propagation of waves is affected by various factors in the environment, such as the distance of propagation, obstacles on the propagation path, and other sound waves in the environment. ANC noise-canceling earphones cleverly and fully exploit these conditions to drastically reduce the noise heard by the human ear.

According to the different frequencies of noise, noise can be divided into low-frequency noise and high-frequency noise. For different characteristics of noise, people choose passive noise reduction and active noise reduction to deal with noise.

In addition to the harsh high-frequency noise, the hum of the air conditioner and the roar of the car engine are all low-frequency noises. These noises have low frequency, long transmission distance, and strong penetrating ability.

However, passive noise reduction has limited ability to deal with these low-frequency noises, so people have proposed the concept of active noise reduction.

Unlike the former, active noise reduction artificially sends sound waves opposite to the original noise to achieve noise reduction. Taking ANC noise-canceling earphones as an example, a microphone is installed on the outside of the earphone, which can receive the noise signal that is about to enter the ear from the outside world.

In Conclusion

Compared with passive noise-canceling headphones, ANC noise-canceling earphones can bring users a better experience. This is why most consumers choose this product. We have ANC noise-canceling earphones for sale. Any needs, welcome to contact us.