I've been noticing more and more that there is a pretty heavy audio lip-sync issue on my 940c with my Marantz SR7010 hooked up over ARC.
On my Marantz I have the audio delay set to 0ms, and I have tried both "hdmi lip sync" both on and off (seems to make no difference). The audio is behind the video, so adjusting the setting on the Marantz would only increase the delay, and it's clear that the delay is coming from the TV.
In attempting to diagnose it, I used the Netflix test patterns a and my iPhone set to 240fps "Slow-Motion" to record, and found that my AppleTV4 has the audio 100% dead-on in sync (required 11ms of delay on the Marantz), but when using the Netflix player on the TV, even with all delays turned off, the audio is about 150ms behind the video.
I didn't really run into the problem before, because I used my AppleTV primarily for 1080p content, but lately I've been watching more 4K content on the TV, and the delay is driving me nuts.
It appears that audio the delay is actually happening inside the TV. Does anyone have an idea what can be done to fix this?
The only Audio setting I can see is ClearAudio, which I have tried set to both on and off, which has no obvious difference.
Last edited by randompersonx; 03-10-2018 at 07:51 AM.