"'Bike bells have barely changed in 100 years, but the world around them has,' said Ben Edwards and Guy Hobbs from creative agency AMV BBDO. 'Škoda DuoBell is the first-ever bell designed to cut through noise-cancelling headphones.'"
"'Active noise cancellation is really good at blocking broad sounds. It detects sound and plays an inverted signal back to cancel it out. There are points where it's less effective. So we set out to find them,' explained Dr Will Bailey, Head of Acousticians at the University of Salford."
"'Testing hundreds of signals across six leading headphones, we found one at 750Hz. We call it the safety gap,' Dr Bailey explained."
The DuoBell, created by Škoda, is a next-generation bike bell that produces a unique sound capable of bypassing noise-cancelling headphones. Trials showed that pedestrians wearing such headphones had significantly more time and distance to react to the bell. The design addresses the increase in bike-pedestrian collisions, particularly in London, where many injuries have been linked to the use of noise-cancelling technology. Collaborating with acousticians, Škoda identified a specific frequency range that penetrates ANC filters, leading to the development of this innovative safety device.
Read at Mail Online
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