Few years ago, we could see the first sound cancelling headphones arriving on the market. Lots of individuals use them on airlines to cover the noise of the aircraft. The first high quality sound cancelling headphones were developed by Amar Bose, CEO of Bose Technology. He quickly realised that the head phones currently on the marketplace presented some problems. His company was the first to make available this technology to the public in the 1980s. Two questions remain, how do they work and what makes high quality sound cancelling headphones?
Noise cancellation technology works with a microphone 'listening' to the sound around you. It then takes those sounds and turns them inside out so they are the inverse of the sounds recorded. By applying the inverted sounds against the actual sounds the sound is eliminated. Because this works in real-time the technology is less effective when dealing with noises that change rapidly. Instead constant sounds such as airplane engine noise is a perfect candidate for elimination with this technology.
To allow this technology to work, a battery power source is needed. When components need to be added to the cables it can be bulky and inconvenient. More useful models have the battery in the headphone casing itself meaning no excess bulk or inconvenience is created. Good headphone will continue to work even if the battery runs out, the sound cancellation technology simply won't be operating in these cases.
The two major forms of sound cancelling headphones are the ear surround model and the over ear model. The ear surround model works somewhat like a pair of air muffs. As well as passively reducing the sound getting into the ear canal, the cancellation technology reduces noise even further. They are well cushioned but several people find them heavy and when worn for long periods of time to be hot and sweaty.
The on ear version of sound cancelling headphones is a lot lighter but they do not cover the complete ear area. With more airflow the trade off is less noise being eliminated. They are also less capable of filtering out loud noises.
Several features to look for in sound cancelling headphones include detachable cords. This is useful if you just want to sit and eliminate airplane noise or the like, and don't necessarily want to listen to music. Being able to separate means you won't be tied to a set of headphone cables.
If you use sound cancelling headphones on a regular basis such as for your job or travel, you may need to transport them safely. The final accessory you should look at is the carry case that is provided. Soft cases are easier to fit into odd spots in your luggage or hand bag, but they do not provide the level of protection a hard case will.
Noise cancellation technology works with a microphone 'listening' to the sound around you. It then takes those sounds and turns them inside out so they are the inverse of the sounds recorded. By applying the inverted sounds against the actual sounds the sound is eliminated. Because this works in real-time the technology is less effective when dealing with noises that change rapidly. Instead constant sounds such as airplane engine noise is a perfect candidate for elimination with this technology.
To allow this technology to work, a battery power source is needed. When components need to be added to the cables it can be bulky and inconvenient. More useful models have the battery in the headphone casing itself meaning no excess bulk or inconvenience is created. Good headphone will continue to work even if the battery runs out, the sound cancellation technology simply won't be operating in these cases.
The two major forms of sound cancelling headphones are the ear surround model and the over ear model. The ear surround model works somewhat like a pair of air muffs. As well as passively reducing the sound getting into the ear canal, the cancellation technology reduces noise even further. They are well cushioned but several people find them heavy and when worn for long periods of time to be hot and sweaty.
The on ear version of sound cancelling headphones is a lot lighter but they do not cover the complete ear area. With more airflow the trade off is less noise being eliminated. They are also less capable of filtering out loud noises.
Several features to look for in sound cancelling headphones include detachable cords. This is useful if you just want to sit and eliminate airplane noise or the like, and don't necessarily want to listen to music. Being able to separate means you won't be tied to a set of headphone cables.
If you use sound cancelling headphones on a regular basis such as for your job or travel, you may need to transport them safely. The final accessory you should look at is the carry case that is provided. Soft cases are easier to fit into odd spots in your luggage or hand bag, but they do not provide the level of protection a hard case will.
About the Author:
Want to learn more? Go to http://topheadphones.info to see advice and videos on how to pick the perfect Sound Cancelling Headphones as well as a collection of the top headphones at the best price.
No comments:
Post a Comment