Having the exact same problems on my S7. With me though, the problem occurs with the speakers at the bottom of the phone and continue even if I plug in the headphones that the came with the phone. I already had the ACR app deleted before I knew that could be a cause so I know that's not it, but I noticed I still had SKYPE and heard that was also another cause. Just deleted it and hope it's the permanent fix we are all looking for. I'll keep you guys UPDATED. THANKS AGAIN.
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