1- Why the headphones don't automatically connect when both my Bluetooth is turned on, on my phone and my headphones.
Leo is right, hold the switch in it's sprung position for a second or two then release. My phone connects automatically once I've done this so I presume this makes the headphones 'discoverable'.
2- The sound output is distinctly different and muted when ANC is on and there is more white noise.
I don't experience much difference in overall level between ANC off and ANC on, but there is a definite change in tone with the bass output being reduced when ANC is turned on. I can hear a low level of white noise with ANC turned on but it is very quiet so I've never considered it an issue (it's much less obvious that any low frequency background noise, and if there was no background noise I would listen with ANC turned off anyway).
3- Why audio and video playback has a significant lip sync delay.
I can watch video on my phone whilst using the H8's in bluetooth mode without any noticeable delay / lip sync issues.
I have experienced some lip sync issues whist using my laptop but that has an older (integrated) bluetooth module which only supports bluetooth v2.0. so that is really to be expected (and I just adjust the audio video sync in the video player software to correct it accordingly).
What device are you using with your H8s for video playback?
4- Would B&O be kind enough to give me an in line volume and playback cable - because the lip sync is so disastrous. Has anybody been able to get one?
I guess the H6 cable would work and is available to purchase on the beoplay website. Only the iOS version has volume control buttons though so if you're connecting to something other than an apple device then you'll probably need to look for a third party cable.
Kind regards,
Martin.
Location: Exeter, UK