|In this application the acoustical
features of a door slamming sound is evaluated by using HEAD
VISOR. The video shows a slow motion of a source map of a vehicle
door being slammed two times in a row. Thus, several phenomena
are shown: Directly after the first door slam a high frequency
rattling can be noticed. In the slow motion (1/2 playback speed)
the door handle can be definitely detected as the initiator.
During the second door slam an annoying peak in the spectrum
is shown at about 5 kHz. The slow motion (¼ playback speed)
points out that the sound source is the post-pulse oscillation
of the metal sheet below the handle.