I got a 360 box last week and I have had several issues with the audio sync - some of which I’ve read similar issues on here but some that I haven’t.
Firstly, I’ve experienced the same issue as many seem to have using a Sonos Beam soundbar. The stock answer seems to be to disable Dolby Digital. This is absolutely ridiculous. I assume Virgin Media are actively looking to sort this? Wish I’d gone with Sky now because of this issue.
That aside, even disabling Dolby Digital (and even unplugging the soundbar) I’m experiencing audio lag on certain channels - mainly BBC channels (but there’s the odd other channel). The audio delay function is useless here as (1) it would be ridiculous to have to change this setting every time you change channel) and (2) it is the opposite - I need an audio forward - audio delay makes it worse.
I'm also having audio sync problems with my new 360 box and my Sonos Beam soundbar. I had no issues with my previous TiVo box before upgrading to 360. I've tried disabling the automatic Dolby Digital 5.1 conversion option, which seems to help a bit, but I still have audio sync issues on some channels and with most recordings. Based on what I've read, this is a known issue with the 360 box, so I'm waiting for a software update to resolve the problem. If anyone has any info on when to expect a fix, that would be really useful!