What is ANC

 ANC 

 In today's time which is full of voices in our sorrunding everyone is troubled by the inappropriate or unnecessary voice coming to their ears.

Keeping this in mind the IT sector decided to launch a technology which will separate the unnecessary noise and give a clear voice to persons ear.

Reading the word noise again and again one thing comes to your mind that what is noise this doubt is cleared in below heading.

Noise

Noise is unwanted sound considered unpleasant, loud or disruptive to hearing. From a physics standpoint, noise is indistinguishable from desired sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.

About ANC

 ANC is a technology based on sound which was invented in order to cancel the unwanted voice coming in ear.

Working of ANC

There are two types of noise cancelation.

Passive noise cancellation.

Active noise cancellation

The main role in clear the voice in a device which is Rich in ANC is passive voice cancellation but all electronic company give priority to active noise cancellation.

At first the noise coming to the device most of the noise is cancelled by oassipa noise cancellation and the reamining noise which comes in device is cleared by anc. When noise enters the gadget the and inverts the noise to 180 degree and then clear voice and noise strike each other and the noise is cancelled as in this way clear voice comes to our ear.

It is dependent on DBANC the higher the value the greater noise cancellation you explain.

Specifications

It embeds 95% of noise. 

Uses battery.

Based on principle of wave

Advantages

• Reduces stress and increases productivity in noisy work environments
• Can help alleviate jet lag and/or travel fatigue by allowing users to sleep more comfortably while flying, reduce ear fatigue associated with long periods of noise on airplanes trains etc.
• May help in reducing stress caused by sensory overstimulation.
• Neodymium magnet systems installed in each headphone provides superior sound quality and increased fidelity
• Noise cancellation can be turned off so that the user can hear others speaking
• Frequency ranges of between five and 24,000 Hertz
• Active noise cancellation rates of up to 94 percent
• Thick, soft ear cushions promoting the ability to inhibit external noise interference
• Headband that is padded and adjustable to fit any size or shape head
• Circuiting responsible for the noise cancellation process usually requires one AAA or AA battery that generally provides about 45 hours of playing time
• Ability to fold up for easy storage in protective carrying case
• Most include detachable cord around four or five feet in length and 1/4-inch adapters

Disadvantages

1. They are expensive

As the adage goes: you get what you pay for, this particularly holds true for noise-cancelling headphones because they definitely do not come cheap, some of them like the new Bose 700 would set you back by as much as $400.

2. They make you unaware of your surroundings

For safety reasons, it’s not advisable to wear noise-cancelling headphones when you’re on the road, because it blocks out noises such as car horns, train horns, and sirens and makes you unaware of your surroundings. 

                                                                     

Conclusion

By reading this article we concluded that people say that technology is gift to world.But this sentence get false when we came to know about disadvantages of technology.So technology is good for a persons health to a limited extent.Overuses harms the environment and our body also.