| Have you ever had a problem listening to your | | | | Sound is formed by a succession of pressure |
| favourite music or the soundtrack of the | | | | waves that pass through the air. A sound is |
| in-flight movie on a long plane journey? The | | | | constructed from equivalent numbers of high |
| constant background noise of the engines can | | | | and low pressure waves that travel from where |
| cause difficulty in setting the volume level | | | | the sound is formed into your ear where the |
| on standard headphones to listen comfortably | | | | sound is heard. The simple way to silence a |
| without being too quiet or too loud. Using | | | | sound is to put a device, such as earplugs or |
| noise cancelling headphones gives an amazing | | | | earmuffs that blocks the path of these waves |
| solution, when you put them on, the | | | | to your ear. |
| background roaring and humming noises are | | | | |
| reduced to virtually nothing. In addition, | | | | Noise cancelling headphones have tiny |
| after using these headphones you will feel | | | | microphones inside the cups of both earphones |
| more refreshed and a lot less fatigued at the | | | | that monitor what you are hearing, including |
| end of a lengthy flight. | | | | any outside background noise. Some electronic |
| | | | processing wizardry takes place to create a |
| Standard headphones are designed to carry | | | | correction signal, which is the difference |
| audio. They don't do very much to fade | | | | between the required sound and the background |
| background disruption. The best quality noise | | | | noise. This signal is fed to the speaker in |
| cancelling headphones are manufactured by the | | | | each earphone. The net result, when combined |
| likes of Sennheiser, Bose QuietComfort, Sony | | | | with the passive noise reduction of the |
| and Philips. Future articles will include | | | | headphones themselves, is a massive reduction |
| some details on specific products along with | | | | in background noise and a much-improved |
| some impartial reviews and advice. You won't | | | | listening experience. Some noise cancelling |
| believe how good these headsets are until you | | | | headphones allow you to switch on the noise |
| try them out, so how do noise cancelling | | | | reduction system without actually listening |
| headphones actually work? | | | | to music, reducing background disruption and |
| | | | making you more relaxed! |