Try moving that red arrow (target) around. It might be under your character, so move your character (that yellow circle), then move your target and then return your character to the previous position.. Hope this helps!
I totally agree with orgo and I think it's horrible. Now you have to sit there for so long time to complete 50x 15 sec. jobs. And it will ruin the product market btw. All in all, I don't like it. I was hoping for something better, to be honest.
These sounds are just NASA or other secret group testing their audio amplifiers that they installed in many kind of "satellites" inside our atmosphere around all the world. And it's part of the project Blue Beam that consists in install hologram machines to create the image of God in the sky...