Connect to share and comment Naming the 'harshest sound in the
world' seems like it would be a subjective matter, but
scientists say they have pinpointed the sound that qualifies for
the moniker. Perhaps for you it is nails on a chalkboard, or
maybe the snap of bubblegum, or even the sound of a particular
person's voice. Naming the "harshest sound in the world" seems
like it would be a subjective matter, but scientists say they
have pinpointed the sound that qualifies for the moniker.
According to a research study by a team at the University of
Newcastle, the harshest sound in the world is a knife against
glass. The team examined brain activity in a group of
volunteers, who listened to 74 recorded sounds under an MRI
machine and ranked each experience, according to ABC News. The
13 subjects found the sound of a fork against glass to be the
second worst sound. The group found that sounds with frequencies
of 2000-5000 Hz were the most disagreeable. The MRI scans showed
that these sounds increased blood flow in