Cicada Chorus 1 Nature Sounds. Cicada Chorus 1: A chorus of high-pitched cicadas rising and falling in the foreground. The sounds can be shrill so keep the playback volume low and adjust carefully. This same shrillness or emphasis on high frequencies also makes this recording excellent masking effects for locations with fans, machinery, or ringing in the ears.
Jet Cabin - Mid Range: The aircraft engine sounds and the sweep of air over the wings is a constant sound, a type of mid-range noise that has a definite calming effect. A great sleep aid, the masking of ringing in the ears is very good, A warm, comforting ambience. The steady white noise also gives a sense of rushing water as from a waterfall.