#Sound

Engineering Questions – If all the vehicles in the world were to convert to electric, would it be quieter?

Long Read

If everyone everywhere received a free electric vehicle at the same time – and owners were required to travel at really slow speeds across well-maintained roads – the world would sound different. But that doesn’t mean it would be quieter. People can have different feelings about the same...

How the sound of the Olympics is created – 3,600 microphones and counting

Quick Read

The modern-era Olympics are among the largest sporting events in the world – but relatively few people actually get to watch the action live and in person. So the four-yearly Games have proved to be an important driver for audiovisual progress. The Tokyo 1964 Games were the first...

The Punishing Signal – Did Mumbai just solve the its honking problem?

Quick Read

Tired of "honkers" in traffic jams? India has come up with a solution. These traffic lights will stay red as long as the drivers keep honking. The constant barrage of car honking in traffic is a real problem for the business and homes around congestion hot spots in...

NASA’s recordings of ‘marsquakes’ let us listen to the martian heartbeat

Deep Dive

Red planet rumbles Thanks to the audio recordings of distant rumblings on Mars released this week by NASA, we finally know what the red planet sounds like. NASA’s InSight lander captured a range of sounds, most tantalisingly the low rumbles of “marsquakes” – seismic ripples rumbling through Mars’...

Engineer Asier Marzo has created a sonic tractor beam … which you can build at home

Long Read

Have you ever wanted to create an acoustic tractor beam to allow you to move objects with sound? Engineer Asier Marzo has not only proved it is possible but produced a video walking you through how to create a tractor beam of your own. In December last year,...