Click each test's button
to see the test. As you watch each test, notice how loud the sound is. After
you have seen all three tests, click the "Check Results" button and
report which test was the quietest.
Browsers that run Flash
show the sound tests on this page. In test 1, we look out the window and see
the rotorcraft and airplane make a steep approach descent. The noise during
test 1 is very loud. In test 2, we see the rotorcraft and airplane make an
approach that is not as steep, and the sound is not as loud. In test 3, the
approach is even less steep, and the sound is the quietest of all three tests.