Do you need eARC for Dolby Atmos?
You don’t need eARC for Dolby Atmos. Dolby Atmos works over regular ARC with any compatible TV and sound system only when encoded through Dolby Digital Plus. eARC is backward-compatible, so it’ll still work with any ARC device. Dolby Atmos encoded through Dolby TrueHD only works over eARC.
How do I know if my Dolby Atmos is working?
Press the Audio, Info, or Menu button on your TV remote to bring this text up. Look for a reference to Atmos or Dolby Atmos. Check your AV receiver. If you’re using an AV receiver, look at its display to see what audio it’s detecting.
How do I get Dolby Atmos?
In a home theater, the best way to access Dolby Atmos content is via Blu-ray discs. Many movies are now available with an Atmos soundtrack. You will see the Atmos version listed alongside the other common audio formats such as Dolby TrueHD, DTS-HD Master Audio and standard 5.1 audio.