Tag: sound

Can a pill prevent hearing loss?

Some very interesting work by Dr. Kathleen Campbell is revealing that there may be potential to produce an orally induced drug that could act as a preventative to hearing loss. 

Acousto-Optic Scanning: Seeing Sound

Being able to visually interpret sound would be an extremely useful function, one that could aid people in the understanding of wave propagation and how those waves interact with each other. As well as this, visualising sound could aid loudspeaker design as manufacturers are able to more accurately study the interference patterns that determine the directivity and frequency response of their products.

Researchers at the National Physical Laboratory seem to have done just that, using a scanning laser Doppler vibrometer that can measure the minute changes in optical phase as the laser passes through an acoustic field.