flying_viking wrote:

Yep it's strange. I tried connecting a headset to the extractor and there was no sound. Might be that it's broken.

I had the 'no sound' problem when trying to use an Atlona AT-HD-M2C as an audio extractor.  As in your case, the sound worked when the hdmi output went to other non-B&O TVs in the house, but not when feeding the output to my BV6 via DVI.

I chatted to Atlona helpline (which was very good, especially as I had bought the device second hand) and eventually they suggested it may be an EDID problem.  They suggested adding an EDID emulator between the Atlona and the TV.  This didn't work initially but then I tried moving the EDID emulator to a position between the Apple TV and the audio extractor (Atlona) - this worked!

In your situation I would probably try a different audio extractor first, but if you want to try an EDID emulator then this is the one that worked for me: 

Hi,

I had this problem too.

When the extractor was connected to a DVI input of a computer monitor with build in speakers the extractor was actually outputting audio.

When the extractor was connected to a BV7 via DVI it did not. I concluded the EDID of the Beovision is telling "hey, I am a monitor with no speakers". 

I added a cheap HDMI 1:2 splitter after the extractor which manipulated the EDID information.

In my opinion your audio extractor (and the one I had) is wrongly build. It should output audio independent of the EDID information received.

There are extractors with HDMI in + DVI and Audio out. I would assume those will work. Mine were HDMI in and HDMI + Audio out 

Regards 

Ravsted

I guess I have been lucky when I bought my cheap extractors not knowing this EDID thing!

Hey Johan,

A little update, the problem is fixed. 

bought an Amazon Basics hdmi extractor and that worked. Just like mentioned above there was some miscommunication between the other extractor we tries from Nedis.

Amazon Basics HDMI extractor did the trick. Using RCA L/R to mini jack and Hdmi to dvi converter with the Apple TV 4K 

Great news - thanks for letting us know! 🙂