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

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H
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@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”.

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.

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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

G
Userlevel 7

@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

It’s definitely set to Bitstream. The only audio setting that has DD 5.1 as an option is for S/PDIF, which would not seem to impact the audio out on HDMI. I did nonetheless set S/PDIF to DD 5.1, but no change to the Sonos. I previously had the Oppo connected directly to the TV, and same result - Stereo PCM on the Sonos.

Hmm 🤔? …may just need to locate its user manual somewhere online (hopefully) and see what it says - and see if it does support Dolby 5.1 out over its HDMI connection?

Does the Denon Receiver have an S/PDiF audio input that you could perhaps try in the meantime?

H
Userlevel 1
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You may also find this device helpful (a bit later, when you do have everything working).

This (link below) is a combined switch/audio extractor, that would allow you to bypass your TV completely and allow you to get uncompressed LPCM/Dolby TrueHD Atmos audio from your Denon Receiver and Blu-ray Player and compressed DD+ Atmos audio from your FireTV 4K…

https://feintech.eu/en/products/feintech-vax04101-hdmi-earc-pass-switch-4x1

So I’ll just post that here for you to maybe look at, at some later stage.

Thanks!

H
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If this is your TV make/model…

https://www.rtings.com/tv/reviews/lg/ef9500-oled

Then it looks like it will need to be Bitstream and Dolby Digital 5.1 that you need to select - I suspect that it will not pass-through Dolby Digital Plus through it’s ports. So that may save you some time testing that.

That is my LG TV - but again, the Oppo is only allowing me to select Bitstream for audio output and no DD 5.1 option.

H
Userlevel 1
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Thanks for the reply Ken. My audio output options on the Oppo are Auto, LPCM, Bitstream and Off. I tried Bitstream and powered everything off, but still only getting Stereo PCM on the Sonos. I’ve also tried Auto to no avail.

It definitely needs to be set to Bitstream, rather than Linear PCM, as you are not using HDMI-eARC - Are there any other audio-out settings to select either Dolby Digital 5.1 or Dolby Digital Plus? If not then go onto perhaps try bypassing the Denon Receiver temporarily and just see if the Player works when connected direct to one of the TV HDMI ports - if it does, then it might be the audio settings on the Denon Receiver …but one step at a time.

It’s definitely set to Bitstream. The only audio setting that has DD 5.1 as an option is for S/PDIF, which would not seem to impact the audio out on HDMI. I did nonetheless set S/PDIF to DD 5.1, but no change to the Sonos. I previously had the Oppo connected directly to the TV, and same result - Stereo PCM on the Sonos.

Ken_Griffiths

You may also find this device helpful (a bit later, when you do have everything working).

This (link below) is a combined switch/audio extractor, that would allow you to bypass your TV completely and allow you to get uncompressed LPCM/Dolby TrueHD Atmos audio from your Denon Receiver and Blu-ray Player and compressed DD+ Atmos audio from your FireTV 4K…

https://feintech.eu/en/products/feintech-vax04101-hdmi-earc-pass-switch-4x1

So I’ll just post that here for you to maybe look at, at some later stage.

Ken_Griffiths

If this is your TV make/model…

https://www.rtings.com/tv/reviews/lg/ef9500-oled

Then it looks like it will need to be Bitstream and Dolby Digital 5.1 that you need to select - I suspect that it will not pass-through Dolby Digital Plus through it’s ports. So that may save you some time testing that.

Ken_Griffiths

@HarvG 

Note, if you do see an audio-out choice between Dolby Digital 5.1 and Dolby Digital Plus within your sound-out settings, then try the latter first, but if no joy, then try Dolby Digital 5.1 instead, as we know from the connected Fire TV that that codec will work for sure.

Ken_Griffiths

Thanks for the reply Ken. My audio output options on the Oppo are Auto, LPCM, Bitstream and Off. I tried Bitstream and powered everything off, but still only getting Stereo PCM on the Sonos. I’ve also tried Auto to no avail.

It definitely needs to be set to Bitstream, rather than Linear PCM, as you are not using HDMI-eARC - Are there any other audio-out settings to select either Dolby Digital 5.1 or Dolby Digital Plus? If not then go onto perhaps try bypassing the Denon Receiver temporarily and just see if the Player works when connected direct to one of the TV HDMI ports - if it does, then it might be the audio settings on the Denon Receiver …but one step at a time.

H
Userlevel 1
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Thanks for the reply Ken. My audio output options on the Oppo are Auto, LPCM, Bitstream and Off. I tried Bitstream and powered everything off, but still only getting Stereo PCM on the Sonos. I’ve also tried Auto to no avail.

Ken_Griffiths

I think the default audio output of the Oppo Blu-ray is Dolby TrueHD and DTS-HD MastAudio and that requires an eARC (not Arc) connection to play the Dolby content and the Sonos Arc does not support DTS HD audio anyway, so the handshake is falling back to PCM stereo - so perhaps set the audio out to Bitstream, Dolby 5.1 or Dolby Digital Plus and see if that then makes a difference.

Hopefully the Denon, set to ‘pass through’ will work okay, but I’ve not taken a close look at that at this stage, as switching the Oppo to Bitstream/Dolby 5.1 etc. for it’s audio-output will (hopefully) sort the matter.🤞

edit: you ‘might’ also need to power off/on the devices to get the ‘changed’ settings/handshake to be correctly recognised, but just see how it goes.

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