I have a relatively new Samsung 4K HDTV. If it matters, the model is the UN55RU8000FXZA.
It’s connected to a Marantz NR1403 receiver, which pushes sound through two Polk Monitor 65T floor speakers as well as a Polk center channel speaker. The TV is connected to the receiver using the ARC HDMI connector.
For the most part, this works just great, but every time I turn the TV on and fire up either Netflix or Amazon Prime Video, I get a horrible chattering sound, caused by the fact that the TV’s audio settings have, mysteriously, changed themselves to Dolby Digital Plus.
When I go in and change the audio settings to PCM or regular Dolby Digital, the sound returns to normal, but this happens every time I turn the TV on, or every time I open up a new Netflix or Amazon show.
It doesn’t happen when I watch regular TV, or the crappy Samsung TV channels that come with the TV, or when I watch an app like PBS. it’s only with Netflix and Amazon Prime. In fact, if I’m in any of the other sources, and go to Audio settings, Dolby Digital Plus doesn’t even appear as an option (only PCM and Dolby), and it is also greyed out in the Expert sound settings on the Samsung TV.
And it only happens when I’m sending sound through the receiver. If I turn the receiver off and just use the TV’s own sound, there’s no problem.
This isn’t the end of the world, because the problem can be fixed every time by starting the show, pausing, and then adjusting the audio settings to regular Dolby Digital. But it’s a real pain in the ass anyway, and I have no idea how to fix it. It seems like maybe a setting needs to be adjusted in the receiver itself, but I can’t find anything that helps.
Any advice would be most welcome.