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  1. #11
    Senior Member David Vaughn's Avatar
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    If the streaming service doesn't see 4K through the HDMI handshake, it will send a 1080p signal. For example, on VUDU, you'd get the HDX stream instead of the 4K (in theory). It can't send the 4K stream because the TV won't be able to decode a H.265 encode.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

  2. #12
    Junior Member
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    Mar 2018
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    Quote Originally Posted by David Vaughn View Post
    If the streaming service doesn't see 4K through the HDMI handshake, it will send a 1080p signal. For example, on VUDU, you'd get the HDX stream instead of the 4K (in theory). It can't send the 4K stream because the TV won't be able to decode a H.265 encode.
    Thank David. Will the Atmos stream still come through for my receiver if the video is 1080P? Thanks for your help.

  3. #13
    Senior Member David Vaughn's Avatar
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    It should. My understanding of the HDMI protocol is that during the HDMI handshake it determines video capability and audio capability separately. The only unknown is whether the streaming service allows that to happen. They may tie Atmos ONLY to the 4K feed.
    David Vaughn
    Technical Writer/Blu-ray Reviewer
    Sound and Vision Magazine

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