Forum Discussion

kopukza1's avatar
kopukza1
Newbie
7 months ago

Playing Atmos movies and shows on Amazon Prime

I noticed that all the shows and movies that previously had the Atmos badge on Amazon Prime no longer displayed them. Called Amazon and found out I need to subscribe to Ad Free to get Atmos. Took care of that and now I see the Atmos badge on the titles. However when I play the content, I only get DD+ to the receiver. I played around with the Roku Ultra (I now have 4850R) Audio settings between Auto, Passthrough, Dolby, etc. But couldn't get it to work. I am sure I was able to stream Atmos previously but it may have been via Disney+ or Max. Any ideas on how to get Atmos to the receiver?

2 Replies

  • RokuTakashi's avatar
    RokuTakashi
    Community Moderator
    7 months ago

    Hi, kopukza1 

    Greetings, and welcome to the Roku Community.

    We appreciate you for letting us know about your concern with playing Dolby Atmos from your Roku Ultra to your receiver, and we'd like to gather additional information so our team can review this thoroughly. Kindly provide the details below:

    • Does the issue only exist with Amazon Prime? 
    • What Roku OS version and build does your Roku Ultra currently have?
    • What is the audio receiver make/model and brand you currently have a setup with the Roku Ultra?
    • What is your current settings and setup with your audio?

    With more details regarding your concern, our team can review this further and provide a resolution.

    Best wishes,
    Kash

  • StreamerUser's avatar
    StreamerUser
    Roku Guru
    7 months ago

    kopukza1 

    1) Configure passthrough: Settings/Audio/Digital output format = Passthrough (otherwise everything non-DTS is transcoded to the highest detected Dolby level of the connected devce - you dont want this).

    2) Disable sound modes:  During playback press Options (*)/Sound settings/Customize sound modes = Off

    3) Prime requires a 4K or HDR configured display device for Atmos (Atmos is only encoded along with 4K/HDR streams) - this means Settings/Display type = 4K TV, 4K HDR TV, 4K HDR10+ TV, or 4K Dolby Vision TV (Automatic or manual configured).  Prime will not output Atmos with a 1080p HDR setup on RokuOS due to no configuration option (other platforms allow 1080p HDR configurations, and will output Prime Atmos, e.g FireOS and Android/GoogleTV OS devices).