Some Terrifying Audio Files To Keep You Up At Night

The Original Night Stalker The Original Night Stalker is the name given to an unidentified serial killer that murdered at least ten people between the years 1979 and 1986 in Southern California. This is the audio recording of a message left on one of the victim's answering machines, which police have been given to believe is the true voice of the mysterious Night Stalker.
David Parker Ray's Toybox Tape -part 1 -part 2 Serial killer David Parker Ray would force his victims to listen to a tape once they awoke in his terrifying sex dungeon. Ray would hold women in his expensive "Toy Box" for months at a time, and was suspected of having killed many victims. This isn't the original recording, but rather a transcription read out by the uploader - be warned, much of the transcript contains extremely disturbing content. It is difficult to imagine how terrifying it would be to here this while tied up and not knowing where you are...
Only Known Recording Of A Genuine Castrato This recording of a performance by Alessandro Moreschi is widely considered to be part of the only genuine recording of a castrato. A castrato is someone who was castrated as a boy in order to prevent the larynx from transforming normally, leaving the individual with a distinctive, high-pitched singing voice.
Chimpanzee Attack 911 Call This harrowing 911 call was made after a woman's pet chimpanzee attacked and began eating the face of her friend. This is one of a number of incidents that have led to calls for more widespread measures to prevent the domestication of apes.
9/11 Kevin Cosgrove 911 Call This chilling audio recorded from a 911 call gives a horrifying insight into the final moments of the World Trade Center office workers on September 11th, 2001. The call, made by business executive Kevin Cosgrove, took place just minutes before the first tower collapsed. The recording was used during the trial of Zacarias Moussaoui, as part of the only criminal trials that resulted from the attack.
Audio recording of Jonestown Mass suicide This massacre was the most deadly non-natural disaster for the US until the 911 attacks. The background is pretty long but I will try to summarise it for you. Jim Jones was a preacher, he founded a racially integrated church in Redwood Valley, California. He wanted to make a communist community, so he leased some land in Guyana, and moved his followers there. There he founded Jonestown. Living conditions were hellish, and people were not allowed to leave, becuase of the use of armed guards. Congressman Ryan visits the town and though he seems impressed by it, he offers that if anyone wants to go back to the mainland, they can go with him. Few accept out of fear of Jones' reaction. On the way back the congressman is attacked by Jonestown guards, and dies. Jones out of fear from US retaliation, scares his followers into thinking that suicide is the best option. Those who refused were encouraged by the armed guards. More than 900 people died that day. The recording is of thier final moments
The Last Transmission Of Vladimir Komarov Vladimir Komarov was sure that he was not going to survive his journey into orbit. The space vehicle was shoddily constructed and untested, and Komarov knew it wasn't ready yet. However, he chose to go anyway, as his best friend Yuri Gagarin was the backup pilot, and would have had to go in his place. This audio recording is of Komarov cursing the Soviet Union officials, shortly before his death.
"Bigfoot" 911 Call This audio recording is taken from a genuine 911 call made in 1990 by a Washington man. In the call, he claims that there is a human-like figure outside of his house, initially crawling but eventually standing at an incredible 6 foot 9 inches. Creepiest of all, the being then apparently stands at stares at the man as he makes the call.
Area 51 Radio Phone Call When it comes to call-ins from people claiming to be ex-government employees with insider information on extra-terrestrial beings, it's easy to dismiss them as hoaxes. This infamous call is somehow different to the others though, as the sincerity and terror in the voice of the caller is either some incredibly good acting, genuine delusion, or something far more terrifying..
The Weepy-Voiced Killer This terrifying audio is taken directly from 911 calls made by Paul Michael Stephani. Also known as the "Weepy-Voiced Killer," Stephani would send crazy, high-pitched calls to the police shortly after murdering his victims during a killing spree in the early 80s.