Active Noise Cancellation technology is not a 21st century invention. Paul Lugen patented it in the 1930s to suppress noise in space through interference. By 1986, Bose Corporation developed the first two prototypes of active noise-reducing headphones. ANC headsets today have become a staple with a global market forecast expected to grow at 14% CAGR during 2018-2024.
How do new-age ANC headphones work?
All modern ANC headsets create a shield of silence or anti-noise through microphones and speakers that detect as well as block the external hum. But, such a pair does not come with randomly positioned microphones to generate an anti-noise signal for harsh frequency removal. In fact, any headphone pair with an ANC circuit will come with its own set of advantages and disadvantages depending on how the microphones are utilised to identify and block the noise frequencies.
ANC technology: The fundamentals
On ANC headsets, the implementation of blocking ambient noise actively is based on three fundamental concepts.
With this type of setup, a microphone is placed on the exterior cup of both channels of an ANC pair. This microphone detects the ambient noise, while the ANC circuit creates an anti-noise signal before the signal of audio playback reaches the ears.
Pros of feed-forward ANC headphones
Cons of feed-forward ANC headphones
A pair with feedback ANC technology will have microphones on both channels inside the ear cups. The microphone on either side picks up the audio signal as well as the noise signal. Then the ANC circuit corrects the noise signal.
Pros of feedback ANC headphones
Cons of feedback ANC headphones
Using the best of both feed-forward and feedback ANC technologies, a hybrid ANC headphone pair features two microphones on either sides – one on the exterior and the other, inside.
Pros of hybrid ANC headphones
Cons of hybrid ANC headphones
Why use a high-quality Hybrid ANC headset?
A good hybrid ANC headset with optimal noise cancellation is also determined by the design, materials used and supplementary tech integration. PLAY’s BH70 Hybrid ANC headphones feature Bluetooth 5.0 for seamless connectivity, excellent microphone sensitivity for call clarity, AI integration for clear sound output and signature driver – Enhanced Bass Extra Loud measuring as large as 40mm. All of these features exist in this pair without being too relatively high on the price.