A study is the first to examine the relationship between parental mental illness like anxiety and depression in childhood and the risk of suicide and self-harm in adults who suffer from tinnitus, noise or ringing in the ears, and hyperacusis, extreme sensitivity to noise. Results show that among patients seeking help for these debilitating hearing disorders, poor mental health in their parents was associated with suicide and self-harm risks across the life span in addition to their own current depression level.
Imaging shows differences in the brains of US government personnel who were potentially exposed to unusual audible and sensory phenomena (sound, pressure or vibration) while serving in Cuba when compared with brain images from a group of healthy individuals without such exposure, although the clinical importance of these brain differences is uncertain. A preliminary report published by JAMA in 2018 described neurological signs and symptoms experienced by some of these government workers.
Composers string notes of different pitch and duration together to create music. Similarly, cells join amino acids with different characteristics together to make proteins. Now, researchers have bridged these two seemingly disparate processes by translating protein sequences into musical compositions and then using artificial intelligence to convert the sounds into brand-new proteins. They report their results in ACS Nano.
Physics Professor Jesse Berezovsky contends that until now, much of the thinking about math and music has been a top-down approach, applying mathematical ideas to existing musical compositions as a way of understanding already existing music. He contends he's uncovering the 'emergent structures of musical harmony' inherent in the art, just as order comes from disorder in the physical world. He believes that could mean a whole new way of looking at music of the past, present and future.
Acoustics consultant Klaus Genuit says that new ISO guidelines for defining, measuring and evaluating soundscapes are a big step forward in guiding the creation of audibly fine restaurants. 'A soup might be delicious or not, but you can't answer this by knowing the temperature of the soup. It is the same with restaurant soundscapes -- you need a lot more information than just noise level,' he said.
Referees and others using whistles on the job need a simple way to determine whether it's harmful to their hearing, so researchers set out to put it to the test and to provide some clarity and damage risk criteria for impulse noise exposures. To do this, the group carefully measured and analyzed the acoustic signature of 13 brands of whistles identified as the 'most commonly used' by 300 sports officials -- both indoors and outdoors.
Screaming is well-studied in animals, but much less is known about how human screams function in communication, or how similar or different human screams are from those of other species. To help unlock the secrets of human screaming, researchers at Emory University have studied human vocal sounds, representing a broad acoustical range and array of emotional contexts, and studied what makes a sound a scream or not.
Wind turbines are a critical component in the strategy for energy independence, but these massive structures are also killing bats. Now, researchers from Texas A&M University are exploring a unique passive acoustic whistle mounted on turbine blades to warn bats of the deadly turbines using a sound they can easily hear and recognize. They will present the team's research findings at the 177th ASA Meeting.
Excessive noise is widely known to have negative effects on health, and children in neonatal intensive care units are among the most vulnerable. Researchers have conducted one of the first studies linking the quiet time soundscape inside NICUs with infant health. The study examined the effects of quiet time implementation in multiple NICUs on infants up to 18 months after implementation. They will present their findings at the 177th ASA Meeting, May 13-17.
During WWI, William Lawrence Bragg led the development of an acoustic method to locate enemy artillery, work that was so successful that it was soon used widely throughout the British army. The method, known as sound ranging, was also adopted by the US Army when they joined the war, and earned Bragg a military decoration from the British armed forces. Bragg's story will be presented at the 177th ASA Meeting, May 13-17, 2019.