- Ever since the invention of the phonautograph
on April 9th, 1860,
audio recordings have become a major part of our lives,
fascinating people through spoken word and music.
But, not all recordings are for entertainment.
Some capture the unexpected.
The following video showcases
the strangest audio recordings ever captured,
the origins of which have never been fully explained.
Due to the nature of these recordings,
this video is best enjoyed with headphones
and will feature no jump scares,
so free to turn up the volume and get ready,
because here are 10 unexplained audio recordings.
Number one is the Wow! Signal.
On August 15th, 1977, Doctor Jerry R. Ehman
detected a radio signal from deep space
during a Search for Extraterrestrial Intelligence project
while at Ohio State University.
This signal, dubbed the Wow! Signal,
lasted for only 72 seconds, and was only ever detected once,
despite several subsequent attempts
by Ehman and his team to find it again.
Its source remains a mystery to this day,
and is widely considered
to be the best alien radio transmission ever received.
(creepy high-pitched tone)
Number two is the Slow Down.
Recorded by the US National Oceanic
and Atmospheric Administration in 1997,
in the middle of the Pacific Ocean,
the Slow Down is an unexplained sound that descends slowly
across a full seven minutes.
Oddly, although the sound has been heard numerous times
since the first recording,
its origin has never been fully explained.
Some suggest that the sound comes
from moving ice in Antarctica.
However, many have debunked this explanation
due to the location of the recording.
The following is the original
and clearest recording to date,
and because of its length, has been set up to 16 times,
so that you can fully hear it.
(deep ominous tone)
Number three is the Yellowstone whispers.
The Yellowstone whispers were recorded in 1872,
when Wyoming's Yellowstone Park first opened.
This eerie sound is described as a mix
of a whistle and a horse whine,
and began in the north
and swept over the area towards the south, growing louder,
but becoming softer the further away it went.
Only thoeries exist at this time
as to what the original sound was.
Some believe it to be seismic activity,
while others believe it to be erupting volcanic gases.
However, there are others that believe it to be more.
There are ghost stories that exist
that are connected to victims who have drowned in the area,
along with the spirits of Native Americans
that called those lands their home.
Natural or Supernatural?
You decide.
(eerie tone)
Number four are sounds from Saturn.
All planets are known to emit radio waves,
but the following, recorded from the planet Saturn,
are creepier than most.
In 2002, the Cassini spacecraft recorded unnerving sounds
radiating from the planet Saturn.
Some scientists believe that the sounds may have come
from the auras found near the poles of the planet
that are similar to those audio waves
that come from Earth's own auras.
However, that explanation does not account
for the rising and falling of audio waves heard here.
(ominous tone)
Number five is the Singing Comet.
Rosetta was a space probe built by the European Space Agency
that launched on the 2nd of March in 2004.
Over the next 10 years,
it traveled 6.4 billion kilometers,
until it finally reached its destination,
touching down on the comet 67P.
This marks the very first time
that a probe landed on a comet.
However, almost immediately, the probe began recording
a strange song coming from the comet's surface.
Described as a drilling or clicking noise,
it confused experts,
who to this day, still do not have an explanation for it.
Some scientists believe
that the magnetic field surrounding the comet
caused the sounds, but others believe it to be more.
(eerie clicking)
Number six is the desperate plea from outer space.
In May of 1961, two former amateur radio operators,
Achille and Gian Judica-Cordiglia,
received a recording from what they believed
to be a phantom female cosmonaut calling out for help.
The recording appears to be
a cry for help of some kind from deep space.
The words, "I am hot, I am hot.
Yes, yes, breathing oxygen,"
are believed to be some of the dialogue spoken,
but the entire message or its meaning
have never been understood.
Despite many attempts from experts,
no one has ever been able to determine the source
of the following audio.
(unintelligible mumbling)
Number seven is electronic voice phenomenon.
Unlike the rest of these recordings,
EVP is not a single event,
but instead a phenomenon that is ongoing
with highly contentious and debated results.
Electronic voice phenomena
are sounds found on electronic recordings
that are interpreted as spirit voices,
usually unintentionally recorded.
The noises sound similar to speech,
and are often regarded by those who believe
as voices belonging to spirits in the area.
Several examples exist online of EVP
that you can look up, including the following recording,
which is one of the earliest examples, taken in 1958.
(eerie electronic mumbling)
Number eight is the Old Tape.
Around 2013, an anonymous 4chan user uploaded audio
that he claimed he recorded in 1995,
while listening to a radio station called WKCR
89.9 in New York City.
The recording begins with music,
but is abruptly interrupted with a high-pitch noise,
almost like a shrieking, followed by heavy breathing.
Shortly after, a distorted female voice speaks,
repeating what sounds like names and dates,
almost in a chant.
An explanation for the following mysterious signal hijacking
was never explained by the radio station.
(old time music)
(loud shriek)
(heavy breathing)
(creepy mumbling)
Number nine are Sky Trumpets.
First recorded in Texas in late 2010,
this mysterious sound was heard
in quite a few places around the globe,
and on several different occasions.
Sometimes described as a loud hum,
it's often most closely described
as a trumpeting sound coming from the sky.
There are a number of theories as to what this could be.
Some scientific, some religious, others paranormal.
Either way, the sound is unnerving,
and to this day, has left many people confused,
and a little frightened.
The following is one such recording
from British Columbia, Canada,
taken on amateur video on August 29th, 2013.
(ominous trumpets blaring)
And number 10 is the Bloop.
Recorded in 1997 off of South American coast,
the Bloop is considered by many
to be the most mysterious audio to ever have come
from the deep ocean.
The eerie low frequency sound was picked up by hydrophones,
and sounded similar to an oxygen bubble
rising up from the water towards the surface.
What's most disturbing about this sound
is that submarines, volcanoes, and earthquakes
have all been ruled out.
Many researchers continue to this day
to look into the cause of the sound,
as it alarms many of them,
as the sound resembles that
of one of a marine mammal would have made,
though, this was much louder of a sound
than any known creature could possibly make.
Some people believe it to be an undiscovered sea monster.
To this day, there is still no definitive source
for the explanation of the Bloop.
(air bubble bloop)
So, those were 10 unexplained audio recordings,
but I want to know from you in the comments.
What do you make of these recordings?
Do they have a normal explanation,
or are they in fact something
that we simply do not understand, yet.
And, as always, if you are subscribed to my channel,
be sure to click the little notification bell
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so that you can be alerted when I upload my next video.
Thank you very much for watching,
and I will see you on Saturday.