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BardG
Contributor I
Apr 16, 2023 3:09 PM UTC
Answered

Dolby Atmos Not Working

I have new LG TV with eARC port connected via HDMI to a Beam 2 and 2 Era 300’s and a Sub Gen 3 for my surround system.  Apple TV 4K connected to the TV via HDMI.  According to the S2 app, I’m getting a Stereo PCM signal even when streaming a movie offered in Dolby Atmos. 

I can play Dolby Atmos music to the system (sounds awesome!!)

Any suggestions?

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GuitarSuperstarAnswer
Lead Maestro
Apr 16, 2023 3:35 PM UTC

Set the TV to these settings:

HDMI Input Audio Format: Bitstream

Digital Sound Output: Pass Through

eARC Support: On
 

Set the Apple TV to these settings:

Change Format: OFF

Dolby Atmos: ON

"Receive with simplicity everything that happens to you." - Rashi
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4 replies

GuitarSuperstarAnswer
Lead Maestro
Apr 16, 2023 3:35 PM UTC

Set the TV to these settings:

HDMI Input Audio Format: Bitstream

Digital Sound Output: Pass Through

eARC Support: On
 

Set the Apple TV to these settings:

Change Format: OFF

Dolby Atmos: ON

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"Receive with simplicity everything that happens to you." - Rashi
BardGAuthor
Contributor I
Apr 16, 2023 3:38 PM UTC

Excellent, I will give it a shot. Thank you

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BardGAuthor
Contributor I
Apr 16, 2023 6:57 PM UTC

It worked!! Thank you. The missing setting was HDMI Input Audio Format: Bitstream.  Appreciate your help! Cheers

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    BardGAuthor
    Contributor I
    Apr 19, 2023 1:29 PM UTC

    One more question:  When a Dolby Atmos source is not streaming, I get Multichannel PCM 7.1.  Is that to be expected?

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