Sonos Arc and Oppo UDP-203 - Only Getting Stereo PCM 2.0

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H
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Sorry it got late so had to sleep, anyhow I found the user manual and so just looking at it now:

Link below:

http://download.oppodigital.com/UDP203/UDP-203_USER_MANUAL_ENGLISH_V1.0.pdf

Thanks

Ken_Griffiths

I would perhaps leave the Denon out the mix ‘temporarily’ to begin with, to get the Blu-ray setup and working first of all with the TV/Arc - as we know that the TV will pass-through the DD 5.1 audio to the Arc. 

Having put the mentioned settings in place on the Oppo with it connected to the TV, did you go onto try powering off all the devices for a minute or so, just to get them to setup the correct handshake again? Then play something that has DD 5.1 or even DTS 5.1 (not DTS-X or HD) audio and see if that may work for you. 

H
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I would perhaps leave the Denon out the mix ‘temporarily’ to begin with, to get the Blu-ray setup and working first of all with the TV/Arc - as we know that the TV will pass-through the DD 5.1 audio to the Arc. 

Having put the mentioned settings in place on the Oppo with it connected it to the TV, did you go onto try powering off all the devices for a minute or so, just to get them to setup the correct handshake again? Then play something that has DD 5.1 or even DTS 5.1 (not DTS-X or HD) audio and see if that may work for you. 

Just reconnected the Oppo directly to the LG, powered everything down for a few mins, and still same result - Sonos is getting only Stereo PCM. So the conflict is somewhere between the Oppo, the LG, and the Sonos.

Ken_Griffiths

I would perhaps leave the Denon out the mix ‘temporarily’ to begin with, to get the Blu-ray setup and working first of all with the TV/Arc - as we know that the TV will pass-through the DD 5.1 audio to the Arc. 

Having put the mentioned settings in place on the Oppo with it connected it to the TV, did you go onto try powering off all the devices for a minute or so, just to get them to setup the correct handshake again? Then play something that has DD 5.1 or even DTS 5.1 (not DTS-X or HD) audio and see if that may work for you. 

Just reconnected the Oppo directly to the LG, powered everything down for a few mins, and still same result - Sonos is getting only Stereo PCM. So the conflict is somewhere between the Oppo, the LG, and the Sonos.

If the Fire TV is working when connected to the TV, it points to the Oppo being the issue - a setting we’re missing perhaps?
 

Just curious, but does the Fire TV give you DD5.1 output when connecting that via the Denon Receiver set to pass-through the audio?

Ken_Griffiths

I’ve just come across this in the user-manual (page 57):

Can you switch the DVD-Audio Mode to ‘DVD-Video’ and see if that makes a difference.

H
Userlevel 1
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I’ve just come across this in the user-manual (page 57):

Can you switch the DVD-Audio Mode to ‘DVD-Video’ and see if that makes a difference.

Already had that set to DVD-Video - no change.

 

Would it make any sense to connect the Oppo directly to the Sonos to see how the sound is processed, or is that not practical/feasible?

 

Ken_Griffiths

I’ve just come across this in the user-manual (page 57):

Can you switch the DVD-Audio Mode to ‘DVD-Video’ and see if that makes a difference.

Already had that set to DVD-Video - no change.

 

Would it make any sense to connect the Oppo directly to the Sonos to see how the sound is processed, or is that not practical/feasible?

 

Yes it won’t hurt to try that and see what audio format you get - if it’s still stereo, my thoughts are to perhaps also try a different HDMI cable.

H
Userlevel 1
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I’ve just come across this in the user-manual (page 57):

Can you switch the DVD-Audio Mode to ‘DVD-Video’ and see if that makes a difference.

Already had that set to DVD-Video - no change.

 

Would it make any sense to connect the Oppo directly to the Sonos to see how the sound is processed, or is that not practical/feasible?

 

Yes it won’t hurt to try that and see what audio format you get - if it’s still stereo, my thoughts are to perhaps also try a different HDMI cable.

Connecting the Oppo directly to the Sonos via HDMI resulted in no sound.  Will have to consider a new cable, but the cable I’m currently using is successfully passing a 4K HDR video signal to the LG.

Ken_Griffiths

@HarvG 
Ah yes of course jgatie is right, (how stupid I am🤷‍♂️)… you need to return the audio to the Arc over an HDMI-ARC connection, but you could use the optical-to-HDMI adapter (that came with your Arc) plugged into the Oppo, but that really somewhat defeats the object of what we were trying to discover and that’s if the audio-out over its HDMI connection is Stereo, or Dolby Digital 5.1

Anyhow, you may aswell try it with the Optical-to-HDMI adapter and see what audio you get from that port. It may at least show the audio out settings are correct even if it’s going through a different port.

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H
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@HarvG On The Batman Blu-ray, if you set the audio track to the French or Portuguese Dolby Digital 5.1 track rather than the English Dolby Atmos or Dolby TrueHD track, what audio format is played through the Arc?

Thanks for the suggestion - I’ve already tried several Blu-ray discs (including The Batman) with a foreign language track in DD 5.1 and got the same result from the Sonos - Stereo PCM

D

I connect to my LG CX TV using both a Macbook Pro (2021) and a Macbook Pro (2012) .  My LG CX has 2 eARC HDMI ports.

 

For some reason my Macbook Pro (2021) is is outputting Stereo PCM (regardless of the eARC port used) to my SONOS app when my Macbook Pro (2012) outputs Multichannel PCM 5.1 to my SONOS app.

Theoretically, the LG should be processing the signals through the eARC ports the same.  The VLC player and Macgo Blu-ray player settings are the same on both Macbook Pro’s. 

Does anyone know what have overlooked.

A
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Did this get resolved. I’m dealing with the same issue with the bdp-103, Sonos arc and an LG C2 which has eArc. 

A
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Thank you.  I’ll try these settings. Art

H
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Tried working with a Sonos live rep on the issue, which did not result in anything actionable. So, have just sent an email to Oppo - fingers crossed.

Did you ever try a different HDMI cable by the way between the Oppo and the TV?

 

Tried a new cable - no effect. Contacted both Oppo and Sonos support - no further suggestions. Next step is trying a new Blu-ray player.

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