Eli5 how noise cancelling in cars works

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Given that the general noise in cars (background hum of an engine on a freeway) is fairly predictable could a tech exist that just plays a generic opposing sound in a regular car, such as an mp3 track. This would enable your average user to experience this through a car stereo

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Anonymous 0 Comments

Why would you play a pre-recorded audio when ANC technology is so cheap both from hardware and computing power requirements standpoint while also being infinitely more versatile?

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