I have my cable box connected to my TV via HDMI, and an optical digital cable running from my TV to my sound bar. Audio is great on everything else I use on my TV except for my cable box. It becomes distorted easily when something loud happens on screen. Like if a character raises their voice or screams then it will distort just enough to be annoying. It's really bothersome when I watch a lot of action packed TV shows that can get pretty loud sometimes. Is this just a problem with my cable box? Should I try and contact my provider to get a new one? Any help is greatly appreciated.