Absorbing low frequency sound is a big job, or at least, a job for big things. Acoustic absorption systems require big resonant cavities with large amounts of heavy damping material and significant ...

Heavy curtains made from thick material such as velvet are often needed to keep noise out of indoor environments, but Swiss researchers have come up with another option. The Empa researchers, in ...

Bad audio can seriously harm an otherwise strong video. But recording good audio can be a daunting task. It’s not just about having the right microphone, as the environment itself has a big effect on ...

This latest accomplishment joins the company’s previously secured ASTM certifications, enhancing the features and expanding the end-uses for its microalgae-based bio-cement and bio-concrete. BOULDER, ...

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 ...

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 ...

Sound absorption Incoming acoustic waves induce relative movements among the fibres, initiating the triboelectric effect within overlapping regions. The generated charges are dissipated through ...

Jack has a degree in Medical Genetics from the University of Leicester.View full profile Jack has a degree in Medical Genetics from the University of Leicester. Being an insect is a hard-fought ...

Nov. 6 (UPI) --The fur on the thorax of some moths absorbs the sound waves emitted by bats and their sonar systems, making them harder to detect, according to new research by scientists at Bristol ...