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Contributor I
June 17, 2021
Answered

Dolby Digital on Arc only when using apps installed on TV not when streaming from other devices

I have a 2015 LG OLED model 55EF9500  -Web OS 2.0  When I play a Dolby Digital movie (Netflix Point Blank) using the LG Netflix app my Arc displays Dolby Digital 5.1  However if I play the same movie using the Netflix app on my Fios 1 STB connected to the HDMI 1 port or on Xbox or Chromecast connected to HDMI 3 via a switch audio is Stereo PCM 2.0

Is there anyway to get Dolby Digital via the STB, Xbox or Chromecast?  Big downside here is no Disney+ app on the TV because it runs Web OS 2.0

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Ken_Griffiths
June 17, 2021

There is a community user here who says that TV will pass-through DD5.1. See here:

So it should Play if the connected peripheral/App is set to output that audio codec.

8 replies

Lead Maestro
June 17, 2021

You have an older TV, so there is a good chance your TV cannot pass through Dolby Digital 5.1 audio from an external media device.  What are your TV’s audio settings set to?

"Receive with simplicity everything that happens to you." - Rashi
TrinNYAuthor
Contributor I
June 17, 2021

The options are Auto or PCM it is set to Auto

Ken_Griffiths
June 17, 2021

There is a community user here who says that TV will pass-through DD5.1. See here:

So it should Play if the connected peripheral/App is set to output that audio codec.

Ken_Griffiths
June 17, 2021

Reading through the thread some more it looks like it only works if the Arc is connected to the TV using the HDMI/Optical Port converter. So perhaps give that a try.

Lead Maestro
June 17, 2021

Check your Xbox and Chromecast settings too.

On your TV, be sure Simplink (CEC) is turned on and Sound Out is set to Audio Out (Optical/HDMI ARC).

"Receive with simplicity everything that happens to you." - Rashi
TrinNYAuthor
Contributor I
June 18, 2021

Reading through the thread some more it looks like it only works if the Arc is connected to the TV using the HDMI/Optical Port converter. So perhaps give that a try.

Is voice control the only functionality I lose with Optical?

Ken_Griffiths
June 18, 2021

There’s no voice control of the TV and no Atmos audio, otherwise you should gain your Disney+ if the 5.1 does work for you.

106rallye
June 18, 2021

Reading through the thread some more it looks like it only works if the Arc is connected to the TV using the HDMI/Optical Port converter. So perhaps give that a try.

Is voice control the only functionality I lose with Optical?

You lose the automatic volume control via HDMI-CEC when you use an optical cable. The Arc can be controlled via your remote too, though this might require some extra set up steps….