Want to restore hearing by injecting stem cells into the inner ear? Well, that can be a double-edged sword. Inner ear stem cells can be converted to auditory neurons that could reverse deafness, but the process can also make those cells divide too quickly, posing a cancer risk, according to a study led by Rutgers University-New Brunswick scientists.
Researchers at the University of Michigan have brought a new method into the sound-dampening fold, demonstrating an origami lattice prototype that can potentially reduce acoustic noise on roadways. The technique allows researchers to selectively dampen noise at various frequencies by adjusting the distance between noise-diffusing elements. They report their work this week in the Journal of Applied Physics.
The first study to look for a causal relationship between recreational noise exposure and auditory function in humans finds that while hearing is temporarily affected in young adults after attending a loud recreational event, there is no evidence of auditory nerve injury or permanent hearing difficulties.
Mice produce a remarkable repertoire of vocalizations across five octaves, which they emit during mating and other contexts. Analyses of mice song can provide important information about their social behavior and for research into neuropsychiatric disorders. But their songs are in the ultrasonic range and inaudible for humans. Researchers at Vetmeduni Vienna and the Acoustics Research Institute now developed a freely available method to automatically detect mouse vocalizations instead of manually.
Computer vision and sound experts at the University of Surrey have demonstrated 'Media Device Orchestration' -- an innovative home audio concept which enables users to enjoy immersive audio experiences by using all available devices in a typical living room.
Researchers at the University of Huddersfield look at the important role former-paramilitaries can play in de-mythologizing the Troubles in Northern Ireland and deterring young people from embracing violence.
Noise pollution is inescapable in segregated cities, where noise pollution is worse for everyone, not just racial and ethnic minorities, according to the first breakdown of noise exposure along racial, ethnic and socioeconomic lines in the United States.
Slower boat speeds reduce risks to manatees. Or do they? Not exactly, according to research conducted at Florida Atlantic University. In fact, the very laws enacted to slow down boats in manatee habitats may actually be doing more harm than good. However, an innovative alerting device is proving to deliver a better solution.
Many attempts to explain how past people experienced their wider world have focused on sight at the expense of sound, but researchers from the University at Albany and the University at Buffalo have developed a tool that puts sound back into the ancient landscape.
Long-term exposure to a noisy environment, particularly at night, is linked to infertility in men, according to a study in Environmental Pollution. The researchers found that exposure above the WHO night noise level (55 dB -- equivalent to the noise of a suburban street) is linked to a significant increase in infertility.