AppleTV to WiiM Ultra to Samsung Frame Dolby question

Elvis

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Sep 14, 2024
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Hoping someone can help me set up my system to its full potential.

AppleTV 4K HDMI out to:
(HDMI in) Samsung Frame HDMI eARC out to:
(HDMI eARC in) WiiM Ultra Optical out to:
(Optical in) Hegel H120 2 channel integrated amp out to:
2 channel floor standing loudspeakers

Added the Ultra in to take advantage of tidal Connect for hires music listening on my 2 amp speaker set up.

However, want to optimise sound for movie/tv watching as well.

What audio settings are best on:

AppleTV (change format to DOlby Digital 5.1, or change format off and send uncompressed?)
Samsung Frame (Passthrough or PCM?)

I’ve been testing different setting options and passthrough on Samsung worked for a Dolby movie and showed Dolby on the Ultra screen. Then it stopped working and no sound. Switched back to PCM in Samsung settings and sound returned with PCM showing on the Ultra screen.

The WiiM Ultra can apparently deliver some Dolby Digital formats but not Atmos?

Or does none of it matter given it sound ultimately exits out of a 2 channel amp into 2 speakers?

Appreciate any guidance you legends may have.
 
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