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[Philt56]

Just setting up a friend’s new Denon receiver x1700h. It supports all Dolby, Dolby plus, atmos , etc.  connected her streaming stick 4k (3820 model)  to an hdmi input on the receiver and only get pcm stereo indicated by the receiver no matter what channel I try,  Netflix, prime, Apple+, Hulu, but never get surround sound. 

I tried all the options under hdmi output (auto, stereo, custom) but always only stereo detected by the receiver.

anything else I need to try in settings somewhere?

playing a Blu-ray Disc on another hdmi setup input is fine, so nothing in the receiver speaker setup. Is wrong. 

[RokuEmmanuel-D]

Welcome, @Philt56.

Thanks for chiming in here in the Roku Community!

We understand that you're having trouble getting the surround sound to work with your Roku Streaming Stick 4K. We are more than happy to assist you with your concern 

If you're having trouble with the surround sound setup on your Roku device, you may try the troubleshooting steps below: 

Try this...

To begin, firmly attach a Premium High-Speed HDMI Cable to the HDMI port on the back of your Roku player. If you are connecting a Roku Streaming Stick, it connects directly to an HDMI input and does not require an HDMI cable.

• Note: The appearance of your Roku player may differ from what is depicted in the diagrams here.

Next, determine how you will connect audio for surround sound. Do you plan to use the HDMI connection, or will you connect an optical cable for audio?

Use HDMI for both video and audio to achieve the best performance with the simplest configuration. If your Roku player is capable of outputting 4K Ultra HD or HDR, be sure to also review the 4K Ultra HD requirements and setup instructions or the HDR requirements and setup instructions.

Once your Roku player is ready to be connected to your other devices, use the recommended option below that matches your configuration.

• Tip: Configuring an AVR or soundbar can be complicated. If you have trouble, consider seeking help from a service like the Best Buy Geek Squad.

1.  Connecting directly to a surround sound-compatible TV 
   a. Connect the end of the HDMI cable that is not attached to your Roku player, or connect your Streaming Stick to an available HDMI input on your TV.
2. Connecting to an AVR or soundbar with HDMI ports
   

   Some AVRs and soundbars are designed to be a single point where you can switch audio and video between your devices connected via HDMI (e.g., Roku player, cable box, game console). Refer to the manufacturer documentation to determine if your AVR or soundbar has this capability.

   • 1. Connect the end of the HDMI cable that is not attached to your Roku player, or connect your Streaming Stick to an available HDMI input on your AVR or soundbar.
     2. Connect a Premium High-Speed HDMI Cable to an output on the AVR or soundbar. Connect the opposite end to an available HDMI input on your TV.

   3. Connecting to an ARC (audio return channel) capable TV and AVR or soundbar

      If your TV and AVR or soundbar both support ARC, this configuration can be simpler because the             AVR or soundbar can easily receive audio from the TV’s tuner and other devices connected to your           TV’s HDMI inputs, not just the Roku streaming player. This configuration allows you to switch audio and video between your devices from your TV.

• 1. Connect the end of the HDMI cable that is not attached to your Roku player, or connect your Streaming Stick to an available HDMI input on your TV.
  2. Connect a Premium High-Speed HDMI Cable to the HDMI port on your TV that supports ARC (it is usually marked “ARC”). Connect the opposite end to an HDMI port on the AVR or soundbar that supports ARC. Both the TV and AVR or soundbar must support ARC. Consult your TV and AVR or soundbar product documentation for more information about this requirement.

For more comprehensive knowledge, you may visit this support article: How to set up your Roku® streaming player for surround sound

Let us know if this works for you.

All the best,
Emman

[Philt56]

That does not help at all.  It is a Roku streaming stick 4k. It is directly connected to a Denon ATV which supports all the latest Dolby audio. The receiver is only r3ceiving  pcm stereo from the Roku. I thought the Roku does not decode the audio from the streaming app like Netflix. Why is it no sending Dolby digital plus to the receiver? I tried all the hdmi output options. Auto, custom.