Hierarchy
Description Sounds of a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally.
URI http://en.wikipedia.org/wiki/Helicopter
Siblings
Examples
# audio samples
400
# ground truth
74     (propagated from children: 0)

Audio samples with candidate annotations for
Helicopter