The Technology Behind Noise Cancelling Headphones

As technology grows, headphones are also being improved to give users clear and precise sound outputs. New innovations of noise cancellation have been introduced to enable headphones produce specific desired sounds for listeners that are completely noise free.

These headphones are the perfect solutions to help you deal with situations like when you are struggling to hear the audio of a movie, but there happens to be a processing factory just around the corner or a heavy machinery in the premises. Technology has been working on advancements for comfort, and this is one successful result from all that hard work.

Noise cancelling headphones are typically of two types. Both attempt to deliver on the noise cancelling promise, and you should learn how they work if you want them. This article will be about the available types and how they work.

  1. Passive Noise Cancelling Headphones

The noise cancelling ability of these headphones are possible because of their hardware materials. They have a dense foam padding around the speakers to reduce noise from external sounds. The hardware may add some weight to the product, and this may become a concern if you want to enjoy clear sounds on this type of headphones.

Any good headphone is supposed to passively cancel noise at low decibels (dB); but increased noise may still get through their hardware and design whether they are placed inside your ear, or on it. These noise cancelling headphones help zone out loud noise.

  1. Active Noise Cancelling Headphones

These types of headphones create sound waves using a circuit to counter the noise detected from the surrounding. Doing this requires the technology that will explained next. It includes microphone, circuits, batteries and speakers.

  • Microphone: The design positions this component on the interior of the headphones to collect noise sounds as it listens to the surrounding.
  • Noise-cancelling circuit: This electronic circuit receives the external sounds from the microphone component, and generates equivalent sounds but opposes the noise with same frequency and amplitude but phase difference of 180 degrees.
  • Speaker: This component collects the noise erasing sounds from the circuit and produces it together with the required audio. The effect removes the external noise interference with the required sounds.
  • Battery: This component is meant to keep the technology running and functioning effectively. The name of these types of headphones was given as a result of the energy source that gives it power, and it needs to be recharged when it runs out.

The active noise cancelling headphones does everything which the passive types does with hardware abilities; but the added technology reduces noise of about 20 dB, which should amount for up to 70percent of reduced noise.

You may need active noise cancelling headphones to reduce disturbing external noise when listening to music or other audio files in an aeroplane, a train station or places characterized by noise. They guarantee the extra convenience that you should enjoy when you need some soothing quietness and cool music.

The many product brands available have different varieties according to what the headphones would be used for, and the budget of the customer. Do well to check out as many reviews as possible and confirm the manufacturer support when you’re ready to get your. Always remember that quality speaks for itself.