Why is my phone making a random rapid click/popping noise

[AC Question]

So I have a Galaxy alpha and it's been working great other than when it randomly opens up a warning page telling me to get a app that makes my phone "faster", opening up Google play to a game or something to down load, but the one I'm wondering is why is it making this loud rapid clicking noise out of the speakers. It happens randomly if I'm playing a game or after I'm done watching a video. It doesn't do it when it is resting. I would really like some help on this and if you know how to stop that other stuff too, I welcome advice. Thank you

 

[Golfdriver97]

Welcome to the forums. It may be a glitch in the ROM. Does it clear up a little after a reboot?