Whether you've experienced disembodied voices or only heard the creepy stories, scientific explanations for this phenomenon exist. Sleep deprivation, drug use, carbon monoxide poisoning, and even high levels of caffeine can trigger the relatively common occurrence of auditory hallucinations. Mental disorders, such as schizophrenia, can also cause people to hear voices.
For others, however, only supernatural encounters can explain mysterious voices. From hearing a family member calling out your name - while in the house alone - to warnings from ghostly voices of impending doom, many people hear something unexplainable and become confused about why it happened.
From Redditor /u/Cakebatter:
Didn't experience this first hand but I overhead some of it on the phone. My sister was visiting my parents (home from college) for the weekend. I live in my own place the next town over. I called her about something and she was clearly very upset. She told me she was home alone and "something was happening" and I asked her if there was someone in the house/an intruder. She told me there were animalistic growling noises coming from the corner and my mom's dog was going nuts on the noise (I could hear him in the background). She said the hallway lights were flashing on and off. I told her to get her jacket and calmly walk out of the house, taking the dog with her if she could, that I would be by soon to pick her up.
She went outside and brought the dog with her. Her friend was even closer than I was so she picked my sister up and they hung out at her friend's house for a while. About twenty minutes after that my brother (who also lived nearby) stopped by the house to return some tools he'd borrowed for my dad. He went inside because he saw the lights going on and off (and he's an electrician). Once he was inside they stopped. He kept hearing someone walking around in the other room, but when he'd go in there, no one was there and when he called out no one responded. He checked the whole house and then also heard animal growling noises from the same corner as my sister. This is an outside wall corner, with windows, not enough space for a raccoon or something to be trapped inside the wall. My brother felt really unnerved and left.
From Redditor /u/TattooedLady801:
I had an experience at an abandoned jail. I was with my brother who was a teenager, and my boyfriend at the time. I was crouching to take a photo of my brother a couple of feet away, and my brother is facing the door to an open room when he says "Oh! This is a nice handle..." and begins to reach for the door handle when one of the harshest voices I've ever heard whispers "MINE!" and the door slammed in his face.
I stood up, we all stared at each other for a split second and all of us ran. I still do not believe in paranormal things, but they both confirmed what I heard before the door slammed. It was bizarre and terrifying.
From Redditor /u/Throw-away1962:
I heard what I thought was my brother singing. We had a piano in our basement as teenagers, and in the early morning or late at night, he spent quite a bit of time on it playing music. I should note, we lived in an old house, and sound traveled relatively well, so even when he was being 'quiet,' you could hear him all the way up on the top floor.
One morning, around 8 AM, I woke up and went about getting ready for the day. My brother was singing in the basement, being loud and obnoxious. His voice is very distinct. And I remember walking out the bathroom, leaning over the top of the stairwell, and shouting down for him to shut up. He kept going, so I shouted louder.
But then I remembered my brother wasn't home that day. He'd left earlier that morning with my parents. The singing stopped. I went downstairs to find the basement dark. I was alone in the house.
From Redditor /u/Somedokin:
A disembodied voice may have saved my sister's life.
When I was about 12 my family lived in my great-grandmother's house. She had died in that house before my sister and I were born, but we knew that it was her home we were staying in.
I'm sitting in the front room as my sister walks toward the front door, and she suddenly stops and turns to me. "What did you say?" she asked. I hadn't said anything, I was sitting quietly with headphones on. We're looking at each other confused and suddenly a car spins out in the street in front of our house. The driver regains control and takes off at high speed again. My sister was about to walk to her friend's house and might've crossed paths with that car if she had left the house.
We're both startled and my sister tells me that a stern voice that sounded like Mom told her to "SHUT THAT DOOR." Mom was in her bedroom but when we asked her she hadn't said anything or left her room.