Miscellaneous Natural

Cosmic noise and particles

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Cosmic background noise recorded in the hydrogen line on 1420.40575 MHz. Recorded in the framework of SETI project Argus.

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Cosmic radio noise (galactic background radiation) recorded by UFRO.

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Sky background radiation at 2.73 K. Source unknown

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Acoustic recording of a narrowband decimetric spikes recorded with Phoenix instrument on December 25, 1990 at 9h37m05s UTC, between 1000-1756 MHz by Peter Messmer and al. Their origin is not known. Their appearance is usually accompanied by strong particle acceleration.

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Geiger (alpha particles only)

Thunderstorm, rain, tornado and electricity discharges

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Thunderstorm rumbling

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Thunderstorm rumbling

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Thunderstorm rumbling

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Thunderstorm rumbling

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Thunderstorm rumbling

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Rain and thunder

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Hurricane

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Wind of tornado

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The power grid radiates VLF radio waves at frequencies of 60 hertz and the harmonic multiples of that number. 12 kV power line recorded in the country. The sound is a background hum that is stronger the closer the receiver is to the lines and also stronger if the line voltage is higher. Document IMAGE/INSPIRE.

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60 Hz humming, same as above but recorded in a city.

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Electric current

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Electric arcing

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Electric sparks

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Electric shocks

Country, wind, stream, birds

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Country, birds

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Country, stream with animals

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Wind with bell, flies and birds

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Windy

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Stream, wind

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Stream, deep

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Jungle, waterfall

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Morning birds

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Summer nights

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Forest fire, violent

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Forest fire

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Crackling fireplace

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Earthquake

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Earthquake

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The sound of seawaves

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Ocean harbor

Whales and dolphins

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Whales, surf

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Whales, water

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Whales vocalizations recorded in Queensland, Australia. Document DKD

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Humpback whales vocalizations recorded in Queensland, Australia. Document DKD. Humpback whales produce moans, grunts, blasts and shrieks in a frequency range of 30 Hz to 8 kHz which make up their complicated "songs".

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Humpback whales vocalizations recorded in western north atlantic by Cornell Lab of Ornithology. In real time, the grunts, gurgles, moans, and screams that comprise the elements of the humpback song are gutteral and "flatulent" sounds.

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Chirps and whistles of humpback whales recorded in western north atlantic by Cornell Lab of Ornithology

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Finback whales vocalizations recorded in western north atlantic by Cornell Lab of Ornithology. Most sounds are frequency-modulated (FM) down-swept infrasonic pulses from 16 to 40 Hz, lasting about 1 to 2 seconds. Various combinations of pulses often occur in deliberate, patterned sequences usually lasting 7-15 minutes, and these sequences are repeated in bouts lasting up to many days.

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Vocalizations of a southern right whale, a female named Archipelago studied near Argentina in 1977 by Cornell Lab of Ornithology. Like their Northern cousins, Southern Right Whales produce moans or "flatulent" calls, under 400 Hz. In addition, however, they make upswept vocalizations, calls that rise in frequency.

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Blue whale moans recorded in western north atlantic by Cornell Lab of Ornithology at a frequency range of 10 to 39 Hz. The sound you hear is speeded up twenty times faster than normal speed, which also raises the pitch of the whale sounds by a factor of twenty to be perceived by human ear

All Blue Whales in the Northern Hemisphere produce sounds with generally similar features. Common sound types include: long, constant frequency (CF) moans; long, frequency-modulated (FM) moans; and long, amplitude-modulated purrs. Various combinations of these basic sound types occur in deliberate, patterned sequences lasting many tens of minutes, and these sequences are repeated in bouts lasting up to many days.

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Blue whale trills and means recorded off the coast of California  by Cornell Lab of Ornithology. Blue whales in the Pacific Ocean produce trills ("A" calls) and moans ("B" calls) in the frequency range of 10 to 39 Hz, with dominant frequencies of 16 to 28 Hz. It shows a pattern of "A, "B", "B", "B" calls. Because of the loudness of the calls in this recording, the calls appear as harmonics at mutiples of the frequencies of the primary call.

The sound has been speeded up ten times, which raises the pitch three and a half octaves, to make it more clearly audible. The sound consists of four parts: first, a trill, or series of click-like sounds, followed by three repetitions of a moan like a foghorn.

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Whales vocalizations recorded in Queensland, Australia. Document DKD

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Humpback whales vocalizations recorded in Queensland, Australia. Document DKD

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Calls and echolocations (while searching food) of a killer whales (Orcinus orca) recorded in November 1997 in Dye's Inlet, Washington by Cetacean Research Technology owner, Joe Olson

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Sonar clicks of a common dolphin (delphinus delphis) recorded in Bahamas