ReflexReact
Prominent Member
I'm having significant audio delay issues with my set up - and my internet research has led me to the (hopefully wrong) conclusion that LG's latest and greatest TV is a bit crap!
Basically, my set up is Xbox One X > C9 > Denon Amp via ARC.
What I want to achieve is:
In all cases, I have a 300-600ms audio lag. I've done some Googling and found others reporting similar issues, suggesting it's the LG TV's which are struggling to decode and send the signal to the amp without introducing the delay. My questions:
Basically, my set up is Xbox One X > C9 > Denon Amp via ARC.
What I want to achieve is:
- 5.1 audio passback via ARC (compressed or uncompressed, I cannot tell the difference)
- take advantage of the TV's features such as VRR which I get from connecting the console directly to the TV
- I have set the TV Audio advanced settings to "Bitstream" on HDMI port 3 (the one the Xbox is plugged into).
- I have set the Xbox's HDMI audio output to "Bitstream" and then setting the Bitstream format to "DTS Digital Surround". I have also tried "Dolby Digital" here.
In all cases, I have a 300-600ms audio lag. I've done some Googling and found others reporting similar issues, suggesting it's the LG TV's which are struggling to decode and send the signal to the amp without introducing the delay. My questions:
- Why would the TV be doing ANYTHING with the audio at all? Can't it just pass it through?
- Do you have an LG B9/C9 and an Xbox one X, passing the audio back to your amp via ARC without audio lag? If so, how is everything set up?
- If ultimately this is the fault of the TV and there is no solution, could I technically run an optical cable from the Xbox to the amp just for audio? (This is not my preference as it'll be a pain having to switch the amp manually every time, but I guess if it's my only option...)
- I've been told buying an amp with eARC will solve this problem as it'll let me pass back PCM (lossless, uncompressed) audio from the TV to the Amp. Is anyone certain of this as a fix? Would it make more sense to wait for amps to support VRR HDMI2.1 passthrough etc? I plan to buy next gen on release date!