I've had a Sony portable Blu-ray player, model BDP-SX910, for a few years now, and I've found that only my noise-canceling headphones give me decent dialogue audio with it. (And only with the noise-canceling option activated.) Apple earbuds and other types of headphones don't work well. For example, I have a Criterion BD disc in the player, right now and the dialogue is hard to hear with the non-noise-canceling headphones I'm using at the moment -- if I turn it up, it becomes distorted with static. (I'm away from home at the moment and forgot my noise-canceling headphones, so I'm trying a different pair of headphones.) Music and sound effects are fine in all movies. Another oddity is that when I tried Captain America: Civil War in the player, I could barely hear the dialogue, even with my non-noise-canceling headphones with the noise-canceling feature turned on. When experiencing these issues, I've tried switching to different audio tracks, and I've tried looking in the player's audio settings, but I've had no luck. I checked the player firmware against what the Sony support site says it should be running, and it's up to date. Any idea what's going on here? Thanks.