An audio extractor is not recommended if 4k HDR is required. It does not transmit the HDR signal.
It's just a question of processing speed. No argument against HDMI audio extractors in general. It's difficult to find quality extractors, that's for sure.
kelma Please open a new thread for hardware suggestions. We want to avoid big mishmash threads.
To produce easy-to-read topics, hardware suggestions should be demanded on more specific threads from now on, like NUC XXX, Gemini Lake, Tiger Lake etc. So I close this beloved thread for good reasons.
Thanks for your understanding! 
I was reading it wrongly. With two stereo speakers, not headphones, it's a pretty cool setup. No BT 5 needed. 
Which start command do you use for the container? As you can see at the pinned post, there is a -p option for port mapping.
If libreelec isn't an option (though I see many sbc on the download page) maybe armbian would do.
Same problem. It's all Linux, and public drivers are missing or in bad shape.
Buy a dedicated DVB box. Public DVB on Linux software is in bad shape at the moment.
Pairing a Bluetooth device to a single audio channel doesn't work. Have a look at the "Bluetooth Audio Device Changer" add-on. Not sure whether it has an option to pair two devices. Bluetooth 5 supports dual audio, so you maybe need Bluetooth 5 headphones.
Did you read the pinned Docker info on top of this sub-forum?
Bitte editiere Dein Posting, indem Du es ins Englische übersetzt. Wir akzeptieren keine andere Sprache.
Es gibt einige Docker-Projekte in unserem Showcase-Subforum, die vielleicht hilfreich sind.
Sounds like syncing refresh rate to display could help. Search for such an option at Settings -> System -> Video (expert mode), or at the playback menu (press OK while playing something, and select the gear wheel). I'm using a different RPi / LE version, so I just guess the location.
I found the LE video calibration:
It's not possible to get audio on HDMI-0 and HDMI-1 at the same time.
It's also not possible to get audio on HDMI and HiFiBerry at the same time.
-> You need an HDMI audio extractor.
Great news, thanks!
It's basically the wrong hardware to do that. An HDMI audio extractor would be the right choice.
Do you use a Kodi app to play music? Maybe there is a chance to switch to S/PDIF over the app.
Wow, I've never seen this issue before. Thanks for reporting. 
It should be merged into nightly builds during the next days. No need to build your own version.
I don't use RPi 4 or Netflix, so all I can do is to provide a link to our nightly builds (Matrix). Don't forget to do a fresh installation on microSD, if you upgrade from LE 9 to LE 10 / 11. Otherwise some dependencies could break.
