The presentation looks like marketing overkill, their solution looks pretty simple. It‘s just two trills „Trillerwerk“ bells combined. It was the standard in Germany until the late 1990s https://youtu.be/-mW7dWHDivo

when the alternative is "everyone doing the right thing" this solution starts to look like the pragmatic approach

Over-engineering? It's a fully mechanical bike bell that's made slightly differently. It's a very established and straightforward technology.

What's your easy technical solution to improve common sense, then? Or is it the all time classic of "just improving society"? I'm all ears for your ideas.

Agreed, however, what do you think about my 'dream bicycle bell'?

I replaced my bell recently because mine had developed a form of 'tourettes' after a bit of plastic fell off. So I did survey the marketplace for something 'more me'.

This made me think about what the ideal bell should be. I reckon that you should be able to buy tuned bells, as in A - G with 440hz 'C' being in there somewhere. Maybe there could be different colours of the rainbow for each frequency.

This would be quite tuneful if I was riding with family or friends, with them also having a tuned bell on their bicycles.

Obviously no use for penetrating noise cancelling headphones, however, I don't think these are an issue. If someone is zoned out on headphones then it is on them if they have no spacial awareness. If they don't hear the bell, then that is on them.

I also think big auto is patronising, to think they have anything to offer the cyclist apart from death and pollution. What would the car dependent ones know about shared path etiquette?

Nowadays the biggest danger to me on shared paths are the Uber Eats delivery guys with their electric motorbikes. Early evenings can be quite risky with those zombies, particularly within half a mile of a McDonalds. They pose a true 'kinetic' risk that the jogger wearing headphones does not.

The real problem is that cyclists and pedestrians apparently in some countries share space commonly enough that this is necessary?

In the Netherlands, bicycle utopia, I cannot remember the last time I used my bell to alert a pedestrian of my existence. Granted, I never cycle in Amsterdam, but that is a special location where high-powered ship horns are probably required.

Regarding ANC, I naturally turn it off while cycling on my Bose Quiet Comfort II, as the ANC will try (and fail) to cancel the noise from the wind. I don't think this is a solved problem? So for bicycle-to-bicycle alerting, this also seems overkill.

I have to agree here. The amount of cyclists I see with full over the ear headphones on-- if these guys are blarning tunes, there is no way they'll every hear the traffic around them. Extremely dangerous.

The problem is the cyclist trying to overtake pedestrian on sidewalk faster. The cyclist paying for it is correct person paying for it.

I say it as cyclist. Pedestrians have right to be absent minded in parks and on public sidewalks.

I completely disagree, this is just another level of safety.

If everything went perfectly everytime we wouldn't need any safety equipment, but things aren't always perfect.

What is the right problem that should be solved here?

which part would you consider overengineered?

Eh, it's pragmatic.

It's replacing a problem you can't solve (human stupidity), with one you can (a better bell).