I have not any experience with this, but I’m pretty sure that I read somewhere, that the digital output should be set to PCM on the tv if you should done volume control. 

I’m not sure, but it’s worth a try. 

Thank you very much for your reply.

Unfortunately the TV has already been set to PCM.

I have this same connection. Once you use optical out from the TV ‘only’ the Core can adjust the volume. Basically the TV is just passing the digital signal to the Core and Core is doing all the processing. The only way to control the volume from the TV is to use the headphone out from the TV to the Core.

The manual is useless:  "Tour of Settings/Sound/Sound Out: Optical: You can connect an audio device that supports Optical to the optical digital audio output port to enjoy your TV’s sound in richer quality and greater convenience.  Only available for models with an optical digital port.  For some devices, you can adjust the volume using the TV remote control."

So do you have one of those "some" devices?  The answer is simple: try it!  If it lowers the volume, then it lowers the volume.  If it doesn't lower the volume, then it doesn't lower the volume.  [[I'm such a sphinx.  Or maybe that's Yogi Berra.]]

[Speculation follows, YMMV: I would expect that it does not have variable volume out over optical, because that would involve more processing in the TV.  I also believe that you have turned off as much processing as you can, by setting "Sound/Additional Settings/Digital Sound Out" to "PCM".  Typically, optical-out is transmitted "raw" from the decoder and not post-processed.  (I believe this custom is because original use was primitive: digital out on DAT & CD machines, just very simple bitstream re-routing to SPDIF over TOSlink.)  Also typically, TVs which *do* any processing on the audio cause delays and then have problems with video/audio sync.  So be grateful: unless you really love the LG remote, it's good that you can control the volume using the Core, instead.]

Thank you very much for your answers.

I think that using the headphone out would reduce sound quality - right?

I don't have a remote for the Core - so I have to use the app on my phone for controlling the volume right now - which is not a satisfying solution. I don't think that the Beoremote one can control the TV - and I would prefer not having 2 different remote controls.

So I think the only option is to buy a Wisa dongle for the TV instead of the optical cable. 

Will that reduce sound quality?

dyhr2204 wrote:

So I think the only option is to buy a Wisa dongle for the TV instead of the optical cable. 

Will that reduce sound quality?

I don't think so. But then you can only use the LG internals to play music, not NL.

If you need NL, I think you can use the BLGW/BLI. It has a new LG WebOS driver (https://khimo.github.io/help_drivers/LGwebOS/), so you could achieve full control of the tv via BR One > Core (or even any legacy B&O remote if you have an IR-puck connected to the Core).

Thank you very much for your answer. 

Sorry for being a newbie - but what is NL?

No worries, NL is the B&O Network Link multiroom-system. You can e.g. stream Deezer, TuneIn and in your setup even the TV-sound to your other B&O-products, e.g. using touch to join etc.

Ah ok - great.

My setup is LG TV optical out to Beosound Core. Beosound Core to Transmitter 1. Transmitter 1 is wireless connected to Beosound 18 and 19.

So instead I can use a Wisa dongle in the LG TV to connect to Beosound 18 and 19 and remove the optical cable. I would still use my Beosound Core and Transmitter 1.

Is this setup possible - so that the LG tv sound uses Wisa to my speakers without reduction of sound quality and the possibility to use the LG remote control to control sound level from TV - and my Beosound Core and Transmitter 1 still continues to use the speakers when playing music from my phone - with the possibility to use the phone to control sound level when playing from this?