Galaxy s7 speaker buzz on certain apps

[AC Question]

I got the s7 a few days ago and I noticed that on certain apps (YouTube, facebook, tumblr, Google play) any audio I play is accompanied by an annoying buzz, however on other apps (games, Skype, instagram) the audio is totally fine and there is no buzz. What could be the cause of this and how do I fix it?

 

[TheseusWrex]

I just noticed that I've got the same problem. At first I thought it was the speaker, but after reading your post, I noticed that it is, in fact, only certain apps that do it. It's like a background buzzing sound.