Fed up with hearing your neighbour’s CDs on your radio headphones? German
audio company Vivanco has developed a headphone system that automatically tunes
itself for best reception. A small transmitter plugs into a hi-fi system and
radiates stereo sound at 863 megahertz. Battery-powered headphones pick up the
signal anywhere within 100 metres. But if two neighbours are using similar
devices, they can interfere with each other’s reception, so Vivanco’s
transmitter searches three frequencies within the band and automatically
switches to the one with the least interference.
More from New Scientist
Explore the latest news, articles and features
Popular articles
Trending New Scientist articles
1
We've found a mysterious substance on Titan and Pluto
2
Faecal transplant makes the brains of old mice act young again
3
Has the answer to life's origins been hiding in our cells all along?
4
The secrets to keeping your brain sharp in old age
5
A quantum state that lasts forever may finally be within our grasp
6
The Selfish Gene at 50: Why Dawkins’s evolution classic still holds up
7
Most portable air conditioners suck – but there's an easy fix
8
Why you need to future-proof your brain in middle age and how to start
9
Our brains have their first thoughts surprisingly early in life
10
Remarkable fossils rewrite the story of how animals conquered the land
