What does the noise of rain on the window and the sound of the radio have in common? They were voted into the top three sounds the UK find most comforting in a recent survey conducted to discover what the nation most loves to hear.
NEWS_291111_Could your lifestyle contribute to future hearing loss?
Could your lifestyle contribute to future hearing loss?
It is known that attending loud concerts and festivals and listening to music at high volume through headphones can all result in deterioration of our hearing and now scientists have discovered that how we travel may also have some impact.
An article published earlier this year in theJournal of the Acoustical Society of Americaexplores how motorcycle helmets worn by bikers may contribute to hearing loss because of the way they channel air and noise.
The article "Aeroacoustic sources of motorcycle helmet noise" discusses how the sound of air whooshing over bikers helmets can exceed safe levels, even when they travel at legal speeds, potentially causing damage.
Researchers from the University of Bath and Bath Spa University worked together to replicate the pressures experienced by riders by way of an experiment that involved placing microphones at different points on a helmet mounted on a mannequin, which was then placed in a functioning wind tunnel. The effect of helmet angle and wind speed on the loudness of noise experienced by riders was also investigated.
The study discovered that the area underneath the helmet and close to the chin bar is "a significant source of the noise that reaches riders' sensitive eardrums." It is hoped that future research can be conducted on real-life riders in road situations, with the information being used to design quieter helmets to protect bikers' hearing.