Hi,
Do you have the same problem?
My system consists of the Arc SL soundbar, a gen 3 sub and two rear era 300s as a stereo pair.
All recent films on Netflix 2015 and above, the voices are not clear, like muffled. I notice that older films, 90s early 2000s no problem, the voices are clear. However, I activated background noise reduction in the Sonos apps on the TV control, I tried several settings, but I still have the same problem. The voices are really not clear. I have to point out that my Sony 4k TV does not have an eArc HDMI, but only Arc, but I don't think that's the problem.
Help needed please, thanks!