How does ANC help for quality call?

Source: Blaupunkt website

From your mouth to ears, really a good gap for voice to reach your earbud's mics and traverse to the listener. It becomes really hard if your surrounded by noise like your dog barking in the background, your family members chit chatting, your buddy honking horn continuously so on, these situation spoil your valuable conversation with the opposite person on call. We are in digital world, more than in-person people prefer conversations on digital medium, so definitely we need better gadgets that fulfill all our call requirements and also help us such unfriendly environments.

The as of now solution to all those noise that spoil our conversation is NC, Noise Cancellation. You might have come across the NC term mentioned in the specification of the earphones you had bought or planning to buy. NC technics helps to improve the quality by reducing the noise in desired sound, and question is, how is this done? The answer is through multiple approaches. To understand these approaches you have to understand the types of noise cancellation features delivering to the end users in the current market.

Two major noise cancellation technics are:

1. Passive Noise Cancellation(PNC)

2. Active Noise Cancellation(ANC)

In Passive Noise Cancellation, technically no electronic or software feature added to earbuds, instead the physical properties of earbuds are designed in such a way that it try to reduce the noise around you mix with the audio your listening. The problem with PNC enabled earphones is that it wont assure how best the noise reduction is achieved, it depends on how best the earphones fit into the users ears. But with the PNC the good thing is that it no need additional power for noise reduction and the cost of earphones with PNC are less.

In Active Noise Cancellation both electronics and software approaches are used. Electronic technique includes dropping noise signals from useful signals and this is achieved through digital signal processing, by introducing anti-noise signal, cancel out the actual noise and retain the desired signal, this technic is most commonly available in many mid and high range earphones. There are some earphones in market comes with Artificial Intelligence(AI) and app based noise cancellation, they use deep learning AI techniques to identify the noise in desired sound and reduce it.

Technology market grows every day, the tech that you have heard today might not be available or got upgraded tomorrow. It is the end users who have to decide what they want in their earphones, if you stay and work in the environment where the surrounding is less noisy, then PNC definitely works and if you stay in more noisy place, you need ANC enabled earphones.