Sorry for yet another lip sync thread but get frustrated with my current set up. My problem seems to be the other way round to most people’s in that I can’t delay the audio enough via the Sonus app to get good lip sync. It is nearly there but not quite.
System is Sky Q > Sony AF9>Sonus Beam with SL surrounds.
Watch Sky Q on TV internal speakers and lip sync is fine. Watch TV tuner/apps on TV internal speakers and lip sync is fine. Watch either with sound via eARC to Sonus Beam and ai have TV dialog sync all the way to 5 to nearly get the lip sync OK.
Would swapping to optical make any difference, if so what would I lose? I think swapping from Dolby Digital Plus to Dolby Digital through the complete chain might have made a small improvement. But if it has it is marginal.