ANC in headphones stands for Active Noise Cancellation , a technology designed to reduce unwanted ambient sounds to provide a clearer and more immersive listening experience
How ANC Works
- ANC headphones have built-in microphones that detect external noises.
- The system then generates sound waves that are the exact opposite (anti-phase) of the detected noise.
- When these opposite sound waves meet, they cancel each other out through a process called destructive interference, significantly reducing the perceived noise
Types of ANC
There are three main types of ANC technology used in headphones:
- Feedforward ANC: Uses microphones placed outside the ear cups to detect external noise before it reaches your ears. It is effective at cancelling higher-frequency sounds like chatter or engine noise
- Feedback ANC: Uses microphones inside the ear cups, closer to the ear, to monitor the sound actually heard and adjust the cancellation accordingly. It works well for low-frequency sounds such as airplane engine rumble
- Hybrid ANC: Combines both feedforward and feedback microphones for a more comprehensive noise cancellation across a wider range of frequencies
Benefits of ANC Headphones
- Improved focus and productivity by reducing background noise.
- Enhanced audio clarity and immersive listening.
- Reduced stress and fatigue from constant noise exposure.
- Ability to listen at lower volumes, protecting hearing.
- Added privacy by preventing sound leakage
In summary, ANC headphones actively cancel out ambient noise using anti-noise sound waves, improving your listening experience especially in noisy environments like airplanes, offices, or public transport
