1. Bose QuiteComfort 35 ii – old but still gold
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  4. How does Noise-cancelling work? Find out…
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Tuesday, 11 May, 2021
  1. Bose QuiteComfort 35 ii – old but still gold
  2. Fix iPad if you forgot its password!
  3. 9 apps YOU should have on YOUR phone!
  4. How does Noise-cancelling work? Find out…
  5. The problem with reopening the country – Unlock 1.0 and its effects
  6. 6 must-try tips to make your phone battery last longer!
  7. OnePlus 8 – not a flagship killer anymore but still excellent value for money
  8. Samsung Galaxy Note 9 | Review
  9. SoundMagic E10C | Review
  10. Why Indian Smartphone Manufacturers failed? | Opinion
  11. Android vs iOS | 5 reasons why each is better | Opinion
  12. Why the Headphone Jack should stay! | Opinion
  13. Ever wondered how OLED displays work? | Find out.
  14. PlayStation VR Mega Pack Bundle | India Price and Release Date Revealed | News
  15. Samsung to release Galaxy S10 lineup | News
  16. WhatsApp releases payments feature! | News
  17. Assembled Computers | How to build basics | Tips and Tricks
  18. Top 7 gadgets you should take on trips with you | Tips and Tricks
  19. Build your own high-end PC under 1.3 Lakh | Tips and Tricks
  20. Samsung OneUI | Review
  21. Xiaomi Mi A2 | Review
  22. Samsung Galaxy S10E | Review
  23. Samsung Galaxy M30 | Review
  24. Xiaomi Redmi Note 7 Pro | Review
  25. Samsung Galaxy A50 | Review
  26. OnePlus 6T | Review
  27. Galaxy Tab S4 | Killer iPad rival from Samsung | Review
  28. Google Home mini | Smart speaker with a small footprint | Review
  29. Mi Sports Bluetooth basic earphones | Perfect for working out on a budget | Review
  30. Amazon Echo Dot (Gen3) | A smart speaker | Great value for your money | Review
  31. OnePlus 7: Great power comes with great value | Review
  32. Samsung Galaxy M40 | Worthy opponent to the Redmi Note 7 Pro
  33. Samsung Galaxy A70: Perfect for media comsumption | Review
  34. Apple AirPods 2: True wireless earbuds for Apple users | Review
  35. Galaxy Note 8 | Still a worthy phone? | Opinion
  36. Spotify | An Opinion

Noise-cancelling is the new in thing in sound. I recently was in the market for a new pair of headphones. Everywhere I searched, I found around 90% of the headphones being claimed to offer noise-cancelling. This has become sort of a norm in the audio industry, where every company is claiming that its products have the best noise-cancelling. But you may ask what is noise cancelling and why should you care?

Let me explain:

Noise-cancelling the industry term for the processes that are used in isolating the listener from outside noise. What is noise, you may ask. Noise is that part of the sound which is mot part of the music, and is part of the ambient environment. For example, if you’re listening to your music in a room full of people who are talking, then the sound that is the combination of the conversations is the noise. Noise is the part that distracts you from your music, and decreases the experience.

This is where noise-cancelling headphones work their magic. They weed out the noise from the music, and greatly increase the experience.

Noise-cancelling is mainly of two types: Active and Passive Noise-cancelling. Let’s discuss about both of them in detail.

Passive Noise-cancelling

Also called as Noise Isolation, it is the noise cancelling process which works by physically reducing the sound waves by using sound insulating materials like foam, tiles, wood, etc. It is cheaper to implement, so it is generally found on low-end headphones. It is more suited towards low pitch sounds, but is not capable of isolating sounds of high frequencies or very high pitch.

It would be a good choice for you if you listen to music in mostly quite places, or if you don’t want to spend a bomb on a pair with Active noise-cancelling.

Active Noise-cancelling

This is the real deal, and is far more complex than Passive Noise-cancelling. As you may know, sound is a pressure wave, thus it is composed of a sequence of high- and low-pressure zones. This sequence has a particular phase. All Active noise-cancelling headphones have a microphone on the side opposite to your ears, which is used to listen to the ambient noise.

After listening to the noise, the headphone then emits a sound of the same amplitude but opposite phase as the original ambient noise. This causes a phenomenon called destructive superposition, which involves the two sounds of opposite phase cancelling each other out. This leads to a decrease in the ambient noise reaching the ears of the listener.

So, that’s how noise-cancelling works. If you have any doubts, do reach out to me. If you have anything to add to this discussion, do so in the comments section below. Cheers!

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I am an Engineering graduate working in the non-profit industry. I am passionate about technology and how it could change the lives of people. Though this blog, I intend to post my opinion on the latest news and happenings in the tech industry to you.

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