New audio tech uses ultrasound to create isolated pockets of sound, enabling private listening without headphones.

Imagine a world where sound becomes visible. In a room full of conversation, we would see soundwaves flowing from person to ...

To be clear, these data were not sound waves to start with, like the Perseus audio, but light in different frequencies. The radio data, at the lowest frequencies, have the lowest pitch in the ...

The film explains the concept of sound, distinguishing between audible and inaudible frequencies. It describes how sound waves are created through vibrations, how they can be visualized using ...

Any sound above 20 000 Hz is called ultrasound. It is too high pitched for humans to hear, but other animals (such as dogs, cats, dolphins and bats) can hear ultrasound. Ultrasound waves are ...

So sound waves move slower through it, which amplifies the lower frequencies in your voice. But here's the fascinating thing. The pitch of your voice hasn't changed when you inhale either gas ...

This experiment demonstrates how water affects sound waves and pitch. You'll discover how different water levels create different musical notes and learn about the relationship between mass, vibration ...

The scientists then used a microphone to analyse how the sound waves propagated along the grating. The characteristic Rayleigh–Bloch behaviour was observed below a certain pitch: Directly around ...

A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...