It's a fucking video game, and there aren't sounds that alter thinking patterns in the human mind. Your brain won't pick up on a sound and go "Must... Kill... Self...".
Especially hearing a sound, and waiting a while, once you don't pick up on the vibrations anymore, it can't effect you, you simply stop hearing it.
This is just all stupid bullshit that got alot of attention because dumb little kids believed it, and created a bunch of websites, videos, and stories to be part of the crowd and act like they know somebody who died.