In everyday life, designing spaces that both let air flow and absorb sound can be a tricky balancing act. Usually, materials that allow air to pass through—like vents—also let sound escape, making it ...

Modern man is exposed to high levels of noise from various devices on a daily basis: from air conditioners to aircraft engines. To reduce the noise propagating in the ducts of air ducts or power ...

A new step toward the perfect acoustic absorber. Researchers have designed and experimentally evaluated in the laboratory a new structure made of conventional porous materials –- used in the ...

The breakthrough material reduces a noise level by 100% more efficient comparing to standard analogs, cutting the level of noise transmission by 20-22 dB. The new foam reacts to sound waves not only ...

Experts at the University of Bristol have discovered that the scales on moth wings act as excellent sound absorbers even when placed on an artificial surface. The researchers, which recently ...

If you live in a city, near a highway, or an airport, you may be bothered by a variety of low-frequency noises emitted by cars and airplanes. Research results have been announced that ``ping pong ...