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Picarte
Contributor I
December 9, 2024
Answered

Hisense U8N TV no surround with audio out passthrough or dolby digital plus

Using Sonos Arc, Hisense U8 TV, 2 play1’s in surround speaker mode. I have Sonos HDMI 2.1 cable to TV earc.  I have ARC enabled in Hisense and CEC. In audio out in Hisense, I do not get sound from my 2 play1 surround speakers in audio out passthrough or Dolby Digital. With passthrough marked Sonos app says Stereo. In Dolby Digital checked, Sonos app does say Dolby Digital plus but no sound from surround speakers. In auto out with Auto marked, I get sound from surround speakers but Sonos App says Dolby Digital multichannel 2.0.  Any suggestions?

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PicarteAnswer
Contributor I
December 10, 2024

I am replying to my own question/thread, because I found the answer.  Hope this helps others.

Do not turn on eARC on TV Sound. Keep it off. Only turn EARC on TV Sound if running DVD or other device similar. For all streaming keep eARC off.

Digital Audio Output: Pass Through off 

Digital Format: Auto

HDMI 1 Format: Enhanced Format

I now get Dolby Digital Plus 2.0, Dolby Digital Plus 5.1, Dolby Atmos...depending on source viewing verified through the Sonos App now playing section!  Seems to no longer shows up under Sonos System Info under Audio-In.

These setting may be unique to my set up though. Good luck.

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2 replies

PicarteAuthorAnswer
Contributor I
December 10, 2024

I am replying to my own question/thread, because I found the answer.  Hope this helps others.

Do not turn on eARC on TV Sound. Keep it off. Only turn EARC on TV Sound if running DVD or other device similar. For all streaming keep eARC off.

Digital Audio Output: Pass Through off 

Digital Format: Auto

HDMI 1 Format: Enhanced Format

I now get Dolby Digital Plus 2.0, Dolby Digital Plus 5.1, Dolby Atmos...depending on source viewing verified through the Sonos App now playing section!  Seems to no longer shows up under Sonos System Info under Audio-In.

These setting may be unique to my set up though. Good luck.

    Puddletown
    Lyricist I
    January 11, 2025

    I recently got a U8 as well and have had some odd issues with audio suddenly cutting out every 30 seconds. I noticed that if I turned on passthrough, it works fine. And eARC also has to be on. I’m using a Beam Gen 2 with the supplied cable, a Sub Gen 1, and two Ones as surrounds. A bit odd that my settings are different from yours and work fine.

    Passthrough does yield quieter audio, but it’s PCM in whatever number of channels the source is sending, so it’s uncompressed. I did originally find it strange that the Sonos app was saying Multichannel 5.1 PCM rather than Dolby, but I think that’s because Dolby is compressed.

    If I turn off eARC, audio cuts out and things completely break so idk what’s going on.

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