About 13.8 billion years ago, there was a Big Bang that gave birth to this universe, or so many of the astronomers believe. But was this explosion a sound or…noise?
This question won’t even arise until the year 1933, when the doctor of philosophy and medicine, Paul Lueg, first submitted a patent application describing the principles of active noise cancellation.
But, it wasn’t until 1978 when Doctor Amar Bose, being at his wit's end due to the loud plane engine, decided to do something about it. It is rightly said,
“...every adversity — contains within it the seeds of opportunity and growth.”
Here is where the journey of Active Noise Cancellation audiowear began.
(Also read: The Beginning of Active Noise Cancellation)
The Need for Active Noise Cancellation
Before going forward, let’s understand the need for Active Noise Cancellation in today’s age.
Imagine you’re at home, watching your favourite movie. Suddenly, the pressure cooker goes off. The whistling pierces through your ears and makes you miss that one moment you had been waiting for. Yes, we can feel the second-hand frustration. (Read: 5 Scenarios Where Active Noise Cancellation Shines Through)
Your brain instantly triggers this one thought: “Man! Is there no way I can cancel this noise?”
During travel, at home and even at the workplace— wherever you want to focus, Active Noise Cancellation works like a charm. And the reason why Active Noise Cancellation has become such a rage is simple. We now want to choose what we listen to & not settle with unwanted background noise.
Now, buckle up boAtheads! We are about to dive into the mechanics of noise cancellation!
How Does Active Noise Cancellation Work?
So, in the land of Audiophilia, the school of warriors prepared themselves for the ultimate fight. They were trained to defeat the greatest enemy: Noise. Now Noise had agents too, known as Decibels. Noise & Decibels enjoyed being a menace. But this cycle was soon to be broken. A new warrior, named ANC, took it on himself to teach Noise & Decibels a lesson. ANC had a superpower. It was to create an army of reverse decibels. Now, these reverse decibels went on a hunt & as reverse decibels collided with decibels, they both were instantly destroyed!
(Wanna continue reading this cool story? Here: Listen to the #SoundThatMatters – Let’s Talk About Active Noise Cancellation)
Now, every sound travels in the form of a wave. And like waves themselves, every soundwave has its own peaks & valleys. If you merge the waves of two different words, they will grow louder. This phenomenon is called Constructive Interference and that’s what causes noise.
Then what helps with Active Noise Cancellation? Destructive Interference. Noise cancelling earbuds & headphones work on the same principle of destructive interference. This means that the noise cancelling earbuds have their own microphone which is constantly at work even when you’re listening to music.
But, what does this microphone do? When these microphones hear and catch sound in your background they instantly create an opposite wave and send it back. This results in the peaks and valleys of both the waves fitting each other & cancelling out. And this is how, ladies and gentlemen, Active Noise Cancellation works.
But this noise cancellation phenomenon is of different types.
(Wanna know the boons of Active Noise Cancellation? Here you go: Boons of Active Noise Cancellation)
Let’s take you on a ride on boAt’s Active Noise Cancellation!
Hybrid Active Noise Cancellation by boAt
Hybrid Active Noise Cancellation by boAt gives you the best of both worlds. Enjoy both feedback & feedforward mics together which increases the frequency range of noise cancellation. Hybrid ANC also comes with an ambient mode. This allows you to listen to your surrounding while still successfully cancelling your background noise. You can enjoy this technology with our best noise cancelling headphones Nirvanaa 751 ANC.
Passive Noise Cancellation by boAt
Passive Noise Cancellation is all about physical noise cancellation. This means that the shape of the headphone and how it fits determines how much noise shall be cancelled out. Bassheads 950v2 will make you experience passive noise cancelling at its best.
Active Noise Cancellation by boAt
Active Noise Cancellation is technology at its finest. The ANC mode sets you right for your zone. Press just one button and cancel every background noise out in an instant. Our noise cancelling earbuds are equipped with the same to give you an enthralling experience. Airdopes 601 ANC will get you grooving!
That is it for today, tribe!
Get any of the audio wear from our active noise cancellation collection for you to vibe!
See, we rhymed. ;)
We hope you learnt something today and had fun, for we surely did!
Until next time.