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

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I've just connected the Sonos Arc to my LG 65EF9500 TV via HDMI ARC (eARC not available on the LG). When using my Amazon Fire Stick with a movie encoded with Dolby audio, the Sonos app shows Dolby Digital 5.1, which is all I expect without eARC on the LG TV.

However, I also have an Oppo Blu-ray player (UDP-203) connected to my Denon receiver (AVR S920W) via HDMI, and the Denon is connected to the LG TV also via HDMI.

I have the Denon receiver set to “pass through” for HDMI so that the the Oppo signal goes to the LG even with the Denon switched off. (I have also taken it out of “pass through” mode and played a Blu-ray disc with the receiver on - same results noted below.)

When I watch a Blu-ray disc encoded with Dolby surround audio on the Oppo, I cannot get the Sonos Arc to recognize the audio properly, and the app shows Stereo PCM 2.0. How do I get it to recognize Dolby Digital 5.1 like it does with the Fire Stick as noted above?

Is there a setting on the Oppo or the Denon I need to change?

Thanks much!

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G

GuitarSuperstar

Lead Maestro

@HarvG When you get Dolby Digital audio from the Fire TV Stick, is it connected to the receiver or directly connected to the TV?

Is Downmix Mode on the Oppo set to 7.1 or 5.1?

What specific Blu-ray disc are you testing?

"Receive with simplicity everything that happens to you." - Rashi

Ken_Griffiths

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

Ken_Griffiths

@HarvG,

Note the HDMI cable should be connected to the ‘main’ port and not the one marked ‘audio’ (mentioned just in case) (page 13)

Also as @GuitarSuperstar mentions - select to downmix the audio to 5.1 (page 15 & 64)

Leave the HDMI audio output set to Bitstream (as mentioned earlier) (page 56)

Note Dolby Digital Plus is supported by the Sonos Arc, but I’m fairly sure from what I read earlier, that the TV will only pass through a Dolby Digital 5.1 signal, so I assume you will get the DD5.1 codec when you make the changes mentioned.

I can’t see anywhere where it lets you select DD5.1 but choosing Bitstream should hopefully work, aswell as changing the downmix mode🤞

I would also perhaps begin by connecting the Oppo direct to the TV as you have connected the Arc to the TV and simply cut out the Denon Receiver in the middle if you do have enough HDMI ports available on the TV to do that.

H

HarvGAuthor

Trending Lyricist I

@HarvG When you get Dolby Digital audio from the Fire TV Stick, is it connected to the receiver or directly connected to the TV?

Is Downmix Mode on the Oppo set to 7.1 or 5.1?

What specific Blu-ray disc are you testing?

Downmix Mode set to 5.1. I’ve been using “The Batman” and “The Guardians of the Galaxy Vol. 2”.

H

HarvGAuthor

Trending Lyricist I

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

H

HarvGAuthor

Trending Lyricist I

@HarvG,

Note the HDMI cable should be connected to the ‘main’ port and not the one marked ‘audio’ (mentioned just in case) (page 13)

Also as @GuitarSuperstar mentions - select to downmix the audio to 5.1 (page 15 & 64)

Leave the HDMI audio output set to Bitstream (as mentioned earlier) (page 56)

Note Dolby Digital Plus is supported by the Sonos Arc, but I’m fairly sure from what I read earlier, that the TV will only pass through a Dolby Digital 5.1 signal, so I assume you will get the DD5.1 codec when you make the changes mentioned.

I can’t see anywhere where it lets you select DD5.1 but choosing Bitstream should hopefully work, aswell as changing the downmix mode🤞

I would also perhaps begin by connecting the Oppo direct to the TV as you have connected the Arc to the TV and simply cut out the Denon Receiver in the middle if you do have enough HDMI ports available on the TV to do that.

HDMI main and not HDMI audio - yes.

Downmix to 5.1 - yes.

HDMI audio output to Bitstream - yes.

I had already tried the Oppo connected to the TV directly and got the same results - Stereo PCM on the Sonos.

I do not have enough HDMI ports on the LG to keep the Oppo connected directly. I only have 3 HDMI in ports: the ARC HDMI one for the Sonos, another for the Amazon Fire Stick, and the third for the Denon, which feeds the Oppo to the TV. If I go back connecting the Oppo directly to the LG, then I cannot keep the Denon connected.

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

HarvGAuthor

Trending Lyricist I

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.

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