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This synthesized helicopter sound effect has been created using the Kangas Sound Editor, an open-source/freeware computer program widely available on the Internet (home page: http://www.kangasound.com). It is based on the SonarDualPing.WAV sound, but with a sine wave for the volume envelope.
Type
Wave (.wav)
Duration
0:04.125
File size
710.6 KB
Sample rate
44100.0 Hz
Bit depth
16 bit
Channels
Stereo