HomeDefinitionsActive noise cancelling technology: How does it work?

Active noise cancelling technology: How does it work?

How Does An Acoustic Amplifier Work
How Does An Acoustic Amplifier Work

Active Noise Cancellation (ANC) is a feature of mid-to-high-end wireless headphones that block outside noise by performing what’s called “signal processing” to block outside noise. To simply put, the ANC function allows most of the distracting noise to be filtered out.

How does active noise cancelling work?

Active noise cancelling is an array of microphones placed around an earpiece or in-ear headphones and works through a concept known as phase cancellation. The first step is to use these microphones to determine what the listener is hearing.

How does active noise cancelling work-min

When the microphones capture this sound, the digital signal processing hardware and software inside the headset starts working. This is where things get complicated. You’ve probably heard the term “sound wave” before.

Sound is a series of vibrations in the air. The peak of one waveform occurs simultaneously with a peak in the opposite direction of the other waveform, so they effectively cancel each other out. This is the principle of operation in headphones.

First visual resource: Unsplash

Mehmet S. Kaya
Mehmet S. Kayahttps://teknonel.com
Mehmet is one of the administrator of Teknonel. As a software developer, he loves to share his knowledge in related topics. He is highly familiar with the editorial process from the inception of an article idea, through the iterative process, publishing, and performance analysis as well as product reviews.

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