The sounds of nature or the noises of people around you may enlighten you at times, but sometimes you simply want to escape from the world for peace and comfort. For example, most of us will shuttle between public transport for commuting every day, and the noise around us only annoys us in a crowded place, especially when we get tired from a whole day's work. For seeking peace and keeping sanity, we know how important it is to isolate ourselves from the noisy environment. And while you are trying to focus on your work or rest while traveling, you may find there is nothing more necessary than noise-canceling headphones. 

Thanks to the rapid development of technology, two groundbreaking noise cancellation technologies have been invented. They are ANC and ENC, both of which are widely used in many situations, especially in making wireless earphones. Wearing noise-canceling earphones, you can enjoy peace in a crowded place, focus on your work without disturbance from the bustle or murmur of the people talking right next to you, and you can even have a clear conversation by picking up a call when running. However, how do they work to cancel the noise around you? I think we must know clearly about it to get the perfect noise-canceling earphones.

How ENC Works

ENC means Environment Noise Cancellation. It works during the calls. Similarly to ANC, it can reduce the noise from the environment by generating reverse sounds. Concretely speaking, the way that an ENC earphone works to cancel the background noise is by using its integrated microphone to record the signals it needs to output and process them before creating the canceling output. As the experimental data points out, it can isolate 90% of reverse environmental noise, decreasing ambient noise by more than 35 decibels. ENC reduces the impact of environmental noise on the call, allowing the other side to hear a clear voice. As such, the other side of the call will benefit more from it.

How ANC Works

ANC stands for Active Noise Cancellation. Working similarly to the ENC, it can lower environmental noise by up to 40 decibels. Unlike ENC, it works to reduce interference from external noise by trying to isolate and protect the audio that users are hearing. Thus, the beneficiaries of ANC are the users, and it can allow the users to have an amazingly immersive sound experience when listening to music or watching a movie. 

ANC earphones outperform average earphones that physically isolate background noise, in terms of noise cancellation. Furthermore, ANC earphones are usually built with a noise cancellation system that generates reverse sound waves that are equal to the external noise to achieve noise reduction. It is composed of a pickup ( used to collect environmental noise), a processor (used to analyze noise), and a speaker (used to generate echo sound waves). Active noise reduction can only be aimed at low frequencies, because low frequencies have a long cycle and, under the same delay, the phase change is small, and the middle and high frequencies mainly rely on passive noise reduction.

In principle, active noise reduction headphones work in a much more complicated way than ordinary headphones. To achieve noise cancellation, ANC noise reduction earphones are built with a noise reduction module containing a microphone that will accept external noise, and then through the calculation of the internal circuit, sound waves opposite to the external noise will be added while the earphones are playing music, thereby canceling the external noise.

Feedforward ANC and Feedback ANC

Active noise reduction can also be classified into feedforward ANC (feedforward noise reduction), feedback ANC (feedback noise reduction), and hybrid ANC (which is feedforward plus feedback). As for feed-forward noise reduction, the microphone needs to be installed outside the earphone and kept away from the speaker. On the contrary, in terms of feedback noise reduction, the microphone needs to be installed near the speaker. 

Currently, it is more challenging to implement the latter compared to feedforward noise reduction, for the reason that although feedback noise reduction can collect a noise signal that is closer to what the human ear hears, the current algorithm is not mature enough to isolate it from interference by the sound of the speaker. 

At present, the best noise-canceling headphones are designed with a combination of passive noise reduction, feed-forward, and feedback noise reduction, which have a very good effect on noise shielding and elimination.

Which is Better, ENC or ANC? 

Currently, both active noise-canceling headphones and environmental noise-canceling headphones are available on the market. However, which is the better option, ENC or ANC? There is no certain answer to it. Both ANC and ENC have their advantages, and they have different beneficiaries. You can buy any of them according to your requirements. My suggestion is to get earphones that boast ENC and ANC.

BWOO BW73 ENC + ANC Wireless Earbuds 

BWOO is one of the companies that wisely combines ENC and ANC technologies with earphones to develop a variety of innovative headsets. For example, the BW73 wireless earbuds are one of the best noise-canceling headsets you can get now. Not only is it equipped with both ENC and ANC, but it also performs great in many aspects. Let me make it clear to you. 

Double Noise Canceling 

BWOO BW73 wireless earbuds are built with ANC and ENC chips that efficiently reduce the noise from the environment, benefiting you in different ways. On the one hand, the BW73 wireless earbuds have a great ENC chip that can block out 90% of reverse environmental noise and reduce background noise by more than 35 decibels. With its integrated dual microphones, the BW73 can protect your voice from being interfered with by background noise, making your voice clearer to the person you are talking to on the phone. On the other hand, the ANC technology in these earbuds helps to reduce background noise and protect the audio you are hearing from being damaged by the background noise. This gives the user a more immersive audio experience when watching a movie or listening to music.

Latest BT 5.3 Chipset 

BWOO BW73 wireless earbuds have an advanced BT 5.3 chip that can ensure a fast and stable connection with low power consumption. Furthermore, it can maintain a stable connection and a transmission distance of approximately 15 meters.

To sum up, BWOO BW73 ENC + ANC wireless earbuds run excellently in many ways, which makes them ideal for everyday activities. They are not only wireless earbuds that bring the best sounding experience to us but also an essential tool to avoid disturbance in a noisy environment. Therefore, if you are looking for earbuds like this, try to shop for them from the BWOO brand store at Alibaba.com. BWOO provides various phone accessories for people from around the world at wholesale prices. For more innovative products, please stay tuned to our blog.

BWOO ANC and ENC Wireless Headphones