Wall Street Journal (June 10, 2023) – Noise canceling is a hallmark feature of top headphones across brands, from Apple and Beats to Sony and Bose. Behind the simplicity of the technology from a user perspective, though, is cutting-edge hardware running sophisticated algorithms.

Video timeline: 0:00 A sound wave and its inverse 0:32 Destructive interference 1:30 Noise-canceling headphones’ origins 3:17 What background noise to remove 4:46 Transparency modes or aware modes

What kind of audio processing is necessary to eliminate background noise when listening to music or watching a movie? WSJ dives into how noise canceling works, how the technology has changed and where things are headed.

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