noise-cancellation technology

Noise-cancellation technology uses microphones to pick up ambient sounds, then generates sound waves that are the exact opposite (anti-phase) to those noises. When these opposing waves meet, they cancel each other out through destructive interference, reducing the overall noise level. There are two main types: active noise cancellation (ANC), which involves electronic processing to generate anti-noise signals, and passive noise cancellation, which physically blocks sound with materials like foam or padding. ANC is most effective at reducing consistent, low-frequency sounds like engine noise, making environments quieter and more comfortable.