A noise cancelling headphone comes in two types: it is either active or passive type. Technically speaking, any type of headphone provides some passive noise reduction. That is because the material used in making headphones itself absorb or block out some sound waves, especially those at higher frequencies.
The best passive noise cancelling headphones, means they are packed with layers of high-density sound-engrossing material, which makes them heavier than normal headphones.
The trade-off of all that extra weight is a reduction in noise of about 15 to 20 decibels (dB). But considering jet engines create 75 to 80 dB of noise inside the aircraft cabin, the passive models do not work as it has some serious limitations. That’s where active noise-cancelling headphones come in by replacing passive earphones.
Active noise cancellation headphones have all the features that passive noise cancellation headphones have like its structure blocks that extra and high-frequency sound. They also add an extra level of noise reduction by actively erasing lower-frequency sound waves.
The Active Noise cancelling headphones accomplish this by creating their own sound waves that mimic the incoming noise in every respect except one: the headphone’s sound waves are 180 degrees out of phase with the intruding waves.
Pros of Noise Cancelling Headsets :
The good news is that for many of the noisy situations people find themselves in noise cancelling headphones can offer a measure of peace and quiet. The following are five positive features of noise-cancelling headphones.
- Block Most Sounds : These headphones do block out the majority of external sounds. There are some restrictions to what they block out and some other issues of comfort to consider, but, generally speaking, noise-cancelling headphones do what they say they will do.
- Music Volume Does Not Need to Be High : The nice thing about noise-cancelling headphones is that much of the external sound is blocked without having to replace it with even louder sounds. This means that the volume level on the music can be turned down to a more enjoyable and comfortable level and still be heard over loud noises produced by the surrounding environment.
- Richer Listening Experience : Noise-cancelling headphones allow users to turn the volume down and hear the intended richness and the variations in the music that disappear when the volume is pushed to the limits.
- Great for Traveling : For people who often travel on commuter trains or airplanes, there is a great need to block out the outside noise during these times in order to sleep, read, study, or work. Noise-cancelling headphones allow these commuters to use their time well, even if that just means sleeping on an airplane.
- Ideal for Studying : Students who have been in the habit of turning up the volume in order to focus find that they can study even better when their music at lower volumes and when outside distractions are gone. While it is possible to turn the music off and only use the noise-cancelling effects of the headphones, many students find the buzzing effect that can result from music headphones to be even more distracting.
Cons of Using Noise Cancelling Headsets:
Here are a few negative aspects of buying and using noise-cancelling headphones that many consumers may want to consider before purchasing a pair.
- The cost of Noise-Cancelling Headphones: For many people, the biggest disadvantage of noise-cancelling headphones is the relative cost difference between noise-cancelling headphones and their alternatives. A set of noise-cancelling headphones, on the other hand, costs around 5 times as much as alternative sets.
- High Power Usage of Noise-Cancelling Headphones: The internal components of a set of noise-cancelling headphones use a considerable amount of power. Some of the sets get this power from internal batteries, and some of those are rechargeable. These sets are generally a bit heavier than headphones that do not carry their own power supply.
- Not All Sounds Are Blocked by Noise-Cancelling Headphones: Most sounds are blocked or cancelled by the design and technology of these headphones, but some sounds do still get through.
These noise cancellation headphones work by not only cancelling the external sounds but also by blocking them as much as possible. This is achieved by a close fit that many users find uncomfortable. If the consumer is sensitive to tight-fitting headgear or prone to pressure-induced headaches, it is desirable to research what brand and type may offer the most comfort before purchasing.
Below are Our picks for Noise Cancelling Headphones with Reviews