A few years ago my sister and I just finished watching the movie, White Noise. After watching it, my sister had the idea of trying to initiate contact through a recording device, specifically our answering machine which was all we had. We tried it together, but we couldn't hear anything so we gave up and she went to go talk to a guy she liked outside. I decided to try alone and went into the bathroom. I turned off the light and asked random questions. I was hoping I wouldn't hear anything because I knew there was something in our apartment.
When I played it back, I heard a voice. I couldn't tell if it was a man or an old woman's voice at first; each time I would play it, it kept getting even clearer. It said, "Help me," and asked me why am I angry. I showed it to my sister and she freaked out. We ended up sleeping at our sister's house that night. I kept trying it and got even more messages.
Things began happening at our place, like pictures would fall off the wall at night, this old fashioned stereo my mom got from a second hand store, with the huge hard-to-press button, all of a sudden came on full blast at night when we were about to go to bed. My niece would cry looking at the couch as if someone was there. She always seemed scared of something. And every time I recorded, there were more voices.
I heard a man yawn and cough when I was reading the bible. When I asked how many there were, one of them said seven. There were only two of them to begin with, Gillian and another woman. I found out that they died in our apartment a while back. It was starting to get out of control because odd things kept happening.
Then the thing that freaked me out the most was I kept getting phone calls and messages on the answering machine. They sounded like EVP's. My mom told me to stop. She believed me, she said, but she didn't want to say it out loud when I asked her. She said they know I've been paying attention to them, that's why they're not stopping. I've been told by five psychics that I'm a sensitive and an old soul. They said that I'm a channel and that I should be careful as to not just contact anybody, because I could let the wrong thing in.
I never recorded again. I'm still paranoid when I hear the phone ring and haven't owned an answering machine ever since.
Alternatively, you may burn dried sage in the house to get rid of negative energy. Many people do this when moving into a new home.