Over-the-ear headphones and noise isolation explained: What really blocks sound

Noise isolation in over-the-ear headphones depends on fit materials, cup design, and sealing rather than technology alone ...
New Atlas

Acoustic metamaterial silences sound without blocking airflow

In our increasingly noisy world, it can be hard to find some quiet time. Now, a team of mechanical engineers at Boston University has developed a new device that is specially designed to block up to ...
SiliconRepublic

Researchers develop acoustic metamaterial that blocks sound

Researchers have built a prototype metamaterial that can successfully block out 94pc of sound while still allowing air to pass through it. When it comes to blocking out sound, traditional methods have ...
Futurism

Scientists Create Material That Blocks Sound, but Not Air or Light

“The idea is that we can now mathematically design an object that can block the sounds of anything,” researcher Xin Zhang said in a press release — meaning the future could be far quieter than the ...
Engadget

The key updates that make AirPods 4 block sound better — and just sound better

The headline feature of the AirPods 4 may be active noise cancellation (ANC), but Apple has done well to improve the overall audio quality in addition to blocking environmental sounds. For the first ...