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The difference between noise-cancelling headphones

2022-05-19

Noise-cancelling headphones are mainly divided into two types: one is passive noise-cancelling headphones, and the other is active noise-cancelling headphones
Passive noise reduction headphones are to isolate noise as much as possible through sound insulation materials or special structures on the headphones. Mainly in-ear earbuds and full-circle earphones. However, due to the overly strict design, long-term wearing will make the ear swollen and painful, and the excessive sound pressure may even affect hearing.
Active Noise Cancelling Headphones are equipped with a special noise reduction circuit in the headphones. Generally, an audio receiver (such as a miniature microphone) and an anti-noise output chip are used to receive and analyze the frequency of the external noise and generate the opposite frequency to weaken or cancel each other, so as to achieve the purpose of shielding the noise.
Since there is no need to press the ear too much, it is more comfortable to wear, and there will be no discomfort even for a long time.

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