Originally Posted by euckersw
One thing I failed to mention in my review above was my experience with lip sync issues, or rather, to my delight, the lack of lip sync issues! I’m very sensitive to it, but since I have everything (TiVo and Apple TV) plugged directly into the soundbar, the audio has been in complete sync with the video. Even using the LG TV apps via ARC looked good (although I hardly ever use those). I mentioned this a few weeks ago, but for anybody having lip sync issues, you really should try directly connecting your devices to the soundbar, not your TV.
Originally Posted by jb442386
Interesting observation euckersw. Have my Apple TV & Oppo 203 direct to HDMI 1&2 & all is perfect re: lip sync. However cable tv(Fios) connected via ARC is presenting issues. As an experiment I connected the cable box to HDMI 1 & it was perfect! So I contacted Sony support & it’s possible this could be fixed after a future firmware update. Overall however I’m very pleased w/the Z9F. Take Care.
After using the soundbar for a little over 2 weeks now, I wanted to follow up and see if anyone has had any issues with lip sync in regards to Dolby Vision output from external devices connected to HDMI 1 or 2. I have noticed that from my LG UBK90 4k BD player, I have a very slight, fraction of a second delay of the image from the sound (sound is just ahead, and it is very slight/fraction of a second, but noticeable to me). This only happens when playing Dolby Vision discs, and not when playing HDR10. I am using HDMI output (ARC) to my TV, obviously. This seems to be soundbar related, as if I connect the BD player directly to the TV, there is no lip sync issue. I also have no issues with internal apps playing Dolby Vision on the TV. I was hoping to see if there was a delay setting in the soundbar, but didn't find anything -- maybe I am not looking in the right place in Settings? The TV has a setting, but that has no affect, as it seems to be only for sound coming through the TV. The BD player also does not seem to have a delay setting.
I also tried connecting the secondary Audio-only HDMI port from the BD player to the soundbar with the primary HDMI going to the TV, but couldn't get the audio working on the soundbar unless I unplugged the HDMI out (ARC) cable, which I obviously don't want to do (I was able to get sound from the Audio-only HDMI port on one of the TV HDMI inputs just to test, so I know the player was outputting just the audio).
I may just resort to watching a lot of the movies I purchased on disc from Vudu on the TV, since so many of the movies I own are available to stream in Dolby Vision and Dolby Atmos, but I would lose the lossless Dolby Atmos to the soundbar, and would instead have to settle for DD+ Dolby Atmos over ARC (which may be fine, I don't think I can tell a difference). I would just be at the mercy of available internet bandwidth and compression, but I think movies through Vudu have looked great.
Anyone have any thoughts or solutions? Maybe a different type of external device to adjust delay?