00:00London, a city of 1.5 million bike commutes every day.
00:04Where 54% of headphones sold have noise cancellation technology.
00:10Leading to a 24% rise in cyclist pedestrian collisions.
00:15Actually not many people know that ŠKODA was born on a bike.
00:19The first product of the company was a bicycle, then motorcycle and then a car.
00:24We support Tour de France since 20 years
00:27and we have a program we love cycling and we do a lot around it.
00:31Introducing the first bike bell, designed to penetrate noise cancelling headphones.
00:36Active noise cancellation is really good at blocking broad sounds.
00:40It detects sound and plays an inverted signal back to cancel it out.
00:44There are points where it's less effective, so we set out to find them.
00:48Testing hundreds of signals across six leading headphones.
00:52We found one at 750 Hz. We call it the safety gap.
00:56The frequency the DSP couldn't cancel.
00:59That's what this bell is built around.
01:01So the problem with creating a frequency that low is the bell has to be huge.
01:06Not ideal for a bike.
01:07We reduced the thickness of the metal and added precision cuts.
01:11We tuned it to our 750 Hz frequency.
01:14But to be reliably effective we had to go further.
01:17To make the system more robust against ANC we have added a second frequency.
01:23The result is duo bell.
01:26We tested the bell in a virtual reality scenario.
01:29A cyclist approaching a distracted pedestrian in noise cancelling headphones.
01:34It was heard 22 meters earlier than the standard bell and five seconds sooner.
01:39The difference between stepping aside and a serious collision.
01:43I think this is a really, a very good expression of our simply clever idea
01:48because it combines this functionality with the safety issue.
01:52Our bell is 100% mechanical.
01:55It's a simple analog solution to a digital problem.
02:01To prove its effectiveness we worked with the UK's leading delivery service
02:05and took it to the streets of London.
02:10Thank you.
02:13Real world tests proved our bell's effectiveness.
02:16I can be felt and heard.
02:19It's give me a voice on this sheet.
02:21It's fantastic.
02:23Yeah, can I keep it?
02:24The bell has proven to be effective both in the lab and the real world.
02:28And we're working with partners to get the solution across more bikes in the UK's biggest city.
02:34London's just the beginning.
02:35We're committed to sharing this with everybody.
02:38The research that's available to freely download on the ŠKODA site.
02:42We're now sharing this with the world.
02:51ŠKODA
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