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400Hz (400-cycle) aircraft APU mains hum. Heard in the cabin and cockpit of large passenger airplanes. The 400Hz AC electric supply is used to power all onboard lighting, climate control, and other systems.
Type
Wave (.wav)
Duration
0:05.454
File size
1022.8 KB
Sample rate
48000.0 Hz
Bit depth
16 bit
Channels
Stereo