Is eARC required for Dolby Atmos?
No, eARC is not required for Dolby Atmos to work. Dolby Atmos can work with regular HDMI ARC through the Dolby Digital Plus audio codec. However, those wanting Dolby Atmos TrueHD must use eARC. You can also bypass ARC entirely by connecting the media device directly to the soundbar or AV receiver. Do you need HDMI ARC for Atmos? If …