Ultrasound refers to sound waves with frequencies above the human hearing range, or above 20 kHz. These waves travel through the air like normal sound waves but are inaudible to people. Because ...

A team of researchers have developed "audible enclave" technology that creates pockets of sound that can be heard at a ...

We can’t hear all levels of sounds. Sound waves with very high frequencies are called ultrasound and our ears can’t detect them. Ultrasound waves have multiple uses including: detecting ...

When two tones of slightly different frequencies are played in separate ears simultaneously (usually through headphones), the human brain perceives ... corresponding brain wave: Beta waves ...

When these waves encounter the human body ... medical applications of ultrasound, frequencies above human hearing, constitute one of the most scientifically validated forms of sound therapy.

A new paper explains how signals oscillating at complex-valued frequencies could transform sensing, imaging, and ...

Ultrasound refers to sound waves with frequencies above the range of human hearing, or 20 kHz. These waves travel through the air like normal sound waves but are inaudible to people. Because ...

This class focuses on the role of waves in human body systems through student-directed inquiry ... Key concepts covered include sound waves, hearing, wavelength, frequency, amplitude and heart rate.