Missing Audio Channels

Bought my Vero 4k a while back but only now had the chance to set it up. I think I am a similar issue as seen in the thread below:

For reference my setup is as follows.

TV: Samsung UE55HU8500
Soundbar: Phillips HTL9100

The Vero 4k is connected to HDMI 2 on the TV and connected to the sound bar via SPDIF. The TV is connected to the soundbar through HDMI ARC.

The soundbar has detachable rear speakers for a sort of surround sound and is capable of decoding Dobly Digital and DTS 5.1 audio.

I’ve uploaded screenshots of my audio settings for reference, although I have tried various things and not had much luck.

If I have the number of channels set to 2.0 things seem to work ok, however I don’t seem to get anything out of the subwoofer. If I have the number of channels set to 5.1 then I can’t hear any dialogue, just background noises.

Output from this command:
cat /sys/class/amhdmitx/amhdmitx0/aud_cap

Gives me this:
PCM, 2 ch, 32/44.1/48 kHz, 16/20/24 bit

Which is what I think the HDMI is reporting - and is probably correct as the TV is unable to support HDMI audio passthrough.

Output from this command:
cat /sys/class/amhdmitx/amhdmitx0/rawedid

Gives me this:

Anyone have any thoughts on what might be the issue and what the correct settings should be for me?

Does your sound bar support HDMI? The best way to connect everything would be to pass through the soundbar.

You can only get AC3, DTS and 2 channel PCM through SPDIF.
We’re looking at the possibility adding an option to merge LFE with L and R channels in a future update.

For now, I’d recommend:

  • Set # of channels to 2.0
  • Enable DTS and AC3 passthrough
  • Enable AC3 transcoding.

This will give you the best experience if you must run SPDIF to the soundbar.


The soundbar does have HDMI inputs, however they don’t support 4k resolutions.

Will use the settings you have suggested and see how I get on.