Noise Cancellation – Pros and Cons

Hey Guys! Today I will be explaining about Noise Cancellation – Pros and Cons

In this article, I’ll cover almost each and every topic dealing with Noise cancellation such as Types of noise cancellation, CVC, Uses of Noise cancellation technique in headphones, CVC 6.0 Noise Cancelling Technology, Features of  CVC, and finally Pros and Cons of using Noise Cancellation Earphones.
I hope that this article would be really helpful for you to gain knowledge about Noise Cancellation. For any kind of problems and queries feel free to drop a comment below. 
Basically, Noise Cancellation refers to cancelling out the unwanted external noises by noise management mechanisms. Basically, noise cancellation can be subdivided into two categories which have been discussed below:


Active Noise Cancellation: 

It is the advanced technology used particularly by noise cancellation

Under, active noise cancellation there is an inbuilt circuit present inside the headphones which analyze the wavelength of the noise coming in. 

Post Analyzing a mirror signal to the noise is induced into the output sound with negative wavelength thus, cancelling the noise and as a result, you get to hear remarkably clear music.

Passive Noise Cancellation: 

It is not a noise cancellation technique but it’s a soundproofing technique. 

Under this technique, the passive noise cancellation headset is designed so that it can envelop(cover) your ears completely. 

As a result, the surrounding noise is reduced to a substantial level; but, this is often not at par with active noise cancelling technique.

What is CVC 6.0? 

CVC stands for clear Voice capture.

Yes, Sound Cancelling Headphones is one of the highest selling items in the world! and each & every time when you look at the headphone specifications you might have come across a popular term i.e. 

Noise Cancelling Headphones featuring CVC 6.0 Noise suppression.

I think it is necessary to know the meaning of CVC and its utility and is it MUST for any headphones. 

So here is my analysis where I’ll be explaining you CVC 6.0 noise reduction terms in detail.

Why do you need Noise Cancelling for Headphones?

1. Either you are using the headset at Home or Outdoors, different environment noises disturb you. especially during calls, the conversation becomes difficult at times. 

Mostly person at the other end of the call will hear the roar, disturbing noise which will be filtered by this intelligent system.

2. When you are at home, you may hear background noises of Air conditioners, washing machine, Refrigerators, Children’s, Televisions, Radios, Utensils and so much more.

3. If you are at Outdoors, you get other background noises like Wind noise, People chatting, Passing vehicles, etc. which makes your phone calls through
headphones extremely difficult.

So What’s the solution? CVC by Qualcomm?

It is one among the most effective & most reasonable system making telecommunication conversations over your headphones super silent! Simply, the person at the other end of the call will feel like you are talking to him from a quiet indoor place. 

It’s Wonderful technology which enhances the call quality and It is relatively cheaper and available in entry-level earbuds & headphones too. 

Thanks to the Qualcomm engineering research centre for that.

What is CVC 6.0 Noise Cancelling Technology?

1.CVC noise cancellation technology by Qualcomm works in the background providing you Enhancements in  Audio and Suppression in Noise to the near and far end.

2.CVC provides packet loss and bit error concealment.

3. In turn, CVC noise reduction provides the best calling conversation quality.

How CVC Noise Cancellation Works?

During a voice call, the microphone picks up all background noises as well as your voice too, in this condition, CVC’s intelligent algorithm comes in to play, 

they will Enhance the Voice Quality throughout transmission from your telephone receiver, as well as do the same during the reception at the other end headsets.
Further to the current CVC noise reduction consists of a standard suite of algorithms that works on:

Enhancing voice communication: Crystal Clear Sound output

Examples such as echo cancellation and noise suppression, which can be applied as per the customized requirements of the gadget.

CVC separates out the voice signals of interest:

Other algorithms are available in the market which is used to suppress background noises, CVC uses signal extraction techniques, it understands the way human speech is heard and processed! and employs an active and self-adaptive system.

Features of  CVC 

  • Automatic gain controls
  • Send/Receive equalizers
  • Comfort noise
  • Howling control
  • Nonlinear processing
  • Adaptive equalizers
  • Power savings techniques
  • Auxiliary stream mixing
  • Frequency enhanced speech intelligibility

Is it Safe to Use Noise Cancellation Headphones?

This is the most common question of music lovers. 

Let me answer this for you. It doesn’t matter whether or not you employ noise cancellation telephone receiver for sleeping or music or once outdoors; these headphones don’t emit low-level radiation like cell phones, hence they are very much safe to use.

Actually exploitation noise cancellation telephone receiver for out of doors for eliminating external noise may be quite helpful as continuous exposure to high levels of noise are often quite damaging to health. 

Also, your children won’t raise the amount abundant if they’re ready to hear their songs clearly whereas exploitation noise cancellation telephone receiver for music.

What are the Pros and Cons of using Noise Cancellation Earphones?

Below I have outlined some major pros as well as cons for using noise cancellation headsets:


1.Effective sleeping device for those people who have trouble while sleeping in noisy environments or are suffering from insomnia. 

Since they cut out the external noise, whether it’s sound of aeroplane or passengers chatting, you can use your noise cancellation headset while sleeping.

2. Since you don’t require to keep the volume high you can preserve your ear health.

3. If you are a travel junkie these headsets are must-have accessories in your backpack to cut out the noise of the train, plane or bus.


1. Noise cancellation headsets are very expensive and cost a good amount of bucks to buy a pair for your ears.

2. The power usage is quite high in case of active noise cancelling. 

As a result battery levels might drop quickly. Plus they won’t perform as a standard receiver just in case the battery dies.

3. These headphones tend to be bulky as circuits for active noise cancelling is present.

4. The audio quality may be decreased by the noise-cancelling circuits and you may hear a high-frequency distorted sound.

Thank you.

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