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sonos in ceiling speaker really quiet



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Ah yes, the Arc Receiver should be on HDMI-2 ARC, well spotted @GuitarSuperstar. 👍

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Ah yes, the Arc Receiver should be on HDMI-2 ARC, well spotted @GuitarSuperstar. 👍

It is!!!!

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The arc works fine and I am getting a noise from the ceiling speakers but with the surround at+15 I can just about hear it

Ah yes, the Arc Receiver should be on HDMI-2 ARC, well spotted @GuitarSuperstar. 👍

It is!!!!

Ah it’s just your screenshot before shows the settings for HDMI-1, hence the thought from @GuitarSuperstar. I can only think it is an issue with your cable can you try another cable (preferably the one that came with the Arc) as a temporary setup/test.

The arc works fine and I am getting a noise from the ceiling speakers but with the surround at+15 I can just about hear it

That’s because it’s playing ‘ambient’ PCM stereo audio and not Dolby 5.1 audio.

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So I can’t select hdmi 2 only hdmi 1 tried another cable and no difference 

 

You will hear quite a huge difference when you get ‘Dolby 5.1’, or better still, ‘Atmos audio’ playing from all your speakers.

So I can’t select hdmi 2 only hdmi 1 tried another cable and no difference 

 

You have to switch to the HDMI-2 input to change the setting you’re referring too but, IMHO the ‘Bitstream’ setting you have already is just fine.

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So I can’t select hdmi 2 only hdmi 1 tried another cable and no difference 

 

You have to switch to the HDMI-2 input to change the setting you’re referring too but, IMHO the ‘Bitstream’ setting you have already is just fine.

But hdmi 2 isn’t showing as being live, that’s what I can’t change the setting?

So I can’t select hdmi 2 only hdmi 1 tried another cable and no difference 

 

You have to switch to the HDMI-2 input to change the setting you’re referring too but, IMHO the ‘Bitstream’ setting you have already is just fine.

But hdmi 2 isn’t showing as being live, that’s what I can’t change the setting?

I still think it’s likely going to be the cable between your TV and the Arc. I know that’s not what you want to hear, but just try another one temporarily and see if it fixes it,

Ideally try the cable that came with your Arc (if practicable).

You would normally switch the HDMI input here by the way using the input selector:

 

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I’ve tried a different cable and it’s the same

if I click on the hdmi input I get this screen

 

Yes that is the Arc screensaver.

When you switched HDMI cable and played the 5.1 movie, you still got PCM stereo audio only in the Sonos App ‘about’ box, is that correct?

… and was that from the TV’s built-in Netflix App?

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Could it be the amp?

Could it be the amp?

You could maybe try ‘unbonding’ the Amp from the Arc, and perhaps any Sub too.. and then see what the Arc’s audio-output shows in the App.

These are my LG C9 TV Audio Settings too, FWIW…

  • Sound -> HDMI ARC: (Digital Sound Out = Pass-Through / eARC = ‘ON’)
  • Sound -> Additional Settings: (DTV Audio = Auto) / HDMI input format = Bitstream for all HDMI ports.
  • Connection -> HDMI Device Settings: (Auto Device Detection = ‘ON’ / Simplink = ‘ON’ / Auto Power Sync = ‘ON’)

It could also be the four speakers not matching the output/impedance of the amp.

Once you get the correct output from the TV to the Arc, of course.

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It could also be the four speakers not matching the output/impedance of the amp.

Sonos amp and 4 Sonos in ceiling speakers, it has to be compatible. 

What was the audo-in displaying after unbonding the surrounds from the Arc?

Sonos doesn’t make in ceiling speakers, do you mean the Sonance Architectural series of ceiling speakers? Sonos does sell them through the website, due to a marketing agreement with Sonance. But if they aren’t the Architectural series, they may not work as you expect. Once GuitarSuperstar and Ken get you to a point where your TV is passing the correct signal to the Amp, that is.