A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

New research shows that the harbor porpoise, a small whale native to Danish waters, appears to be equipped with an inbuilt "ea muffs" that helps it shield itself from intense noise, such as that from ...

Soft whirring sound of low-frequency vibrations cannot be easily detected because it is not loud. But once detected, it can be hard to ignore. Often, residents complain of the annoyance caused by ...

Those living in or around Bristol say a low-frequency sound coming from the Reworld facility continues to be a nuisance. Our NBC CT Responds team was first to listen and share stories of community ...

Scientists have demonstrated that noise caused by humans can carry all the way down to the seafloor, affecting the marine wildlife that lives there. An increasing number of sounds caused by human ...

Researchers describe an acoustic meta-surface that uses pingpong balls, with small holes punctured in each, as Helmholtz resonators to create inexpensive but effective low-frequency sound insulation.

Horses use their larynx to make two sounds simultaneously, so they are effectively singing and whistling at the same time ...