Paragraph 1
How we listen to music has changed over the
. Today, we have high-tech noise-cancelling ear
that provide the highest
experience. In the near
, we will be able to listen to music in public without headphones. New technology will aim
of sound at us, without other people hearing. This means we will have
in public without others listening in. Researchers in the USA developed an
called "audio enclaves". The ultrasound
used for this cannot be heard on their
to the receiver. The waves can also be bent to get around
.
