PS4 Sound Problems

I have been playing since ps3 and no problems even since ps4 release ive had no problems but i was farming brayflox hardmode for a very long time and all of a sudden i started noticing that i had no sound effects/battle effects no battle music no ballad music when i sing my songs not even the whistle sound when i summon my mount but then it will come back for a min or 2 then dissapear again so i reset ps4 but now its constantly happening after a half hour or so of gameplay it starts doing it and its driving me nuts...
Anyone else with this issue???