| Gone are those days when you were forced to savor | | | | The plugs are designed so that it eliminates all the |
| your favorite piece of music along with the external | | | | background noises by sealing the inner ear canal tightly. |
| noises. The headphones and earplugs incorporate a | | | | If you are on a shoestring budget, but if you would like |
| piece of technology commonly noted as noise | | | | to empower yourself with a mediocre noise |
| cancellation. The next time when you venture out to | | | | cancellation strategy, I urge you to look into some |
| buy your favorite headphones, please make a mental | | | | models that include this technique. |
| note to verify the presence of the same. I realize that | | | | Allow me to cite one disadvantage of the active noise |
| most of you might be curious in learning about the | | | | control circuitry. For operating this circuitry, you will |
| science that is applied on these gadgets. Do not worry, | | | | have to invest on extra battery packs. The more time |
| because I will illustrate the same in the remaining | | | | you spend with the headphones, the more batteries |
| passages. | | | | you will have to invest. Keeping in mind this simple |
| There are two types of noise cancellation techniques | | | | factor, manufacturers now include an on-off switch to |
| that are made available on the present generation of | | | | activate and deactivate this circuitry. This is truly a |
| headphones. The expensive products come with | | | | blessing in disguise because you will now have a |
| active noise control circuitry. This circuitry will measure | | | | control over the circuitry and can enable it only when |
| the levels of ambient noise. Upon accurately judging it, | | | | the need arises. |
| the circuitry will generate an "anti-noise" audio | | | | What are the advantages of using a headphone that |
| frequency. This frequency is combined with the original | | | | includes noise cancellation? |
| audio (which is being reproduced by the headphones). | | | | Firstly, you will be able to enjoy clear music without |
| The listener will not be able to hear any kind of noises | | | | setting the music player to play out the music at high |
| that occur in the background. Thus, he or she will be | | | | levels of volume. When the ambient noise levels |
| able to enjoy a distortion free audio experience. There | | | | increase, it is quite customary for people to increase |
| are certain pitfalls to this technology, and I will be | | | | the volume. Listening to digital audio for extended |
| illustrating them later. | | | | durations with the volume at set high will induce nausea |
| The manufacturers also achieve noise cancellation by | | | | and giddiness. Besides, you will also damage the inner |
| molding the headphone's ear cups suitably. This is one | | | | ear canal and most importantly the eardrum. Damage |
| of the primitive types of noise cancellation technique | | | | to the eardrum will result in loss of hearing ability. You |
| that is in use on these days. In fact, earplugs (a slight | | | | will have to ensure that your eardrum is not perforated |
| variation of the contemporary headphones) are | | | | at any costs! Do keep us posted with your headphone |
| designed bearing in mind the above-mentioned factor. | | | | buying experiences. |