Switching to PCM isn't a fix, it's a workaround that lowers the potential quality of the sound output by the box.
When you could be enjoying proper discrete 5.1 surround sound, you'll just be getting a PCM stereo signal. You could apply Pro-logic processing to it but it's not nearly as good.
BUT - If you don't have the equipment for surround sound - more than two speakers, amp, etc - stick with PCM stereo, will sound no worse.
I notice these tiny drop-outs quite regularly (video stutters occasionally too) but will live with them for now until the box's firmware matures and things like this get fixed. I personally get more enjoyment out of sticking with proper surround sound with the odd glitch than dropping back to 1990's era stereo!
I am in an over subscribed area - Fault ref F003066490
I have a new Yamaha Amp costing over £500 with both an ATMOS speaker set up and Dolby DTSx I do not intend to switch my setup to an inferior sound setting such as PCM just because Virgin can not get there act together and get this issue sorted its been like this for over 8 months now and most likely longer.
I have had a look at SkyQ boxes and it does not happen on that system so will be looking into a change if this is still present in the next few weeks
Its bad enough having to live with the absolute awfully slow menu system for the last 6 years or more (Tivo) and now the sound is up the creek and still no sign of it getting fixed.
Very poor service for something that costs me over £100 a month
I experience this issue with my 2017 LG 4K TV where I use the TV’s optical output to a Dolby digital decoder and 7.1 speaker system. I don’t believe it’s anything to do with the V6 box as the issue occurs with Dolby digital (DD) content on both the built-in apps and an Amazon Fire TV pendant.
Totally agree with the smart folk that recognised that choosing PCM is not a fix and in fact takes DD away from you.
I think it’s an issue with the TV firmware that allows the audio signal to flow from the HDMI input to its optical out. Although it may affect those using HDMI/ARC to output the dolby to an external receiver/decoder.
The issue does not appear to occur when using Freeview channels with a DD audio track when you have the DTV sound setting set to DD and not DD+.
The issue reminds me of an issue I had earlier this year with an Amazon Fire TV set to output Dolby Digital Plus (DD+). My decoder doesn’t support DD+. As soon as I set it to DD (non-plus), the issue went away. This makes me think the issue is caused by the fact that LG users can’t choose between DD and DD+ for non-DTV sources. I think it’s defaulting to DD+. This could be supported by those suffering this issue who also do not have DD+ support.
I don’t think this post has been answered. The OP has just avoided the issue rather than had it answered. As I said however, I don’t think Virgin can help. You need to go to your TV vendor.
I have recently purchased LG 4K OLED Tv + SJ8 soundbar and V6 box I've tried everything hdmi 2.0 cable via ARC tried optical and nothing has resolved issue. Switching to PCM resolves completely and have no issues with audio delay on netflix or amazon just audio from V6 box. I did speak to VM tech support guy who happened to have same setup and advised ticking 1080p and 720p video settings to help with issue as he advised the box struggles to upscale audio/video from 1080p sources, however I did find by disabling 2160p setting altogether has definitely helped although not completely gone. He also stated VM were aware of issue and hopefully be resolved within first 6 months of 2018!! Not sure my patience will last that long mind.