Contributor I

Question

About my system shows audio in as 2.0 instead of 5.1

16 replies
30699 views

Hello all,

This drives me absolutely crazy and I don’t know why I am having this issue or how to fix it. So in my living room I have a full 5.1 set up - I have a beam, the sub, and stereo paired L and R Sono’s ones.

I have the beam plugged in via HDMI/ARC to my tv. On tv itself I have my settings set to bitstream for the HDMI audio format and then the audio format set to Dolby Digital. However whenever I check the audio in on my beam on the settings within the Sonos app it says Dolby Digital 2.0. What gives?

When I stream digital movies via the vudo tv app I check to make sure they are Dolby Digital Now I do hear sound out of the stereo pair speakers and the sub is producing bass for scenes but I dont understand why my app doesn't show 5.1.

then however when I watch something stupid on cable that I am sure isn’t 5.1 it tends to show it (I also have my cable provider settings set up as well.)

So basically I am just curious if anyone can help me on my it says 2.0 when it should be 5.1...

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nik9669a

Senior Virtuoso

Not all programs are transmitted in DD 5.1Some are sent in 2.0 so first check the program is a 5.1 one.

On your setup, you say you have stereo paired Ones. If they haven’t been set as Surrounds bonded to the Beam, there is nothing to play the effects channels.

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ABeezy13Author

Contributor I

Not all programs are transmitted in DD 5.1Some are sent in 2.0 so first check the program is a 5.1 one.

On your setup, you say you have stereo paired Ones. If they haven’t been set as Surrounds bonded to the Beam, there is nothing to play the effects channels.

First off, thank you for the reply nik9669a!

Sorry I got a little excited before reviewing my post. They are set as surrounds as shown below!

Also the content I am watching on the tv (from the VUDU app) says “HDX 1080P, Dolby Digital” I am actually watching an older Christmas movie from 1996… if that means anything in terms of audio quality.

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nik9669a

Senior Virtuoso

Surrounds they are - but always best to check the basics first!
What tv make/model do you have? There may be someone on here that can check your settings or suggest different ones.

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ABeezy13Author

Contributor I

Surrounds they are - but always best to check the basics first!
What tv make/model do you have? There may be someone on here that can check your settings or suggest different ones.

I have a 65” Samsung KS8000 in the living room where I should have the 5.1 setup.

I also have a second beam and the surrounds upstairs in my loft (no sub) and I seem to get the 2.0 a lot there too. That tv is a 65” LG B7OLED

Stuart_W

World-Class Superstar

If the Sonos is reporting Dolby 2.0 then that is what is being received.

I suspect that the signal being received is only Dolby 2.0. You’re going to have to find a source that you KNOW is Dolby 5.1 to test I think.

I’d be very surprised if your TV were converting Dolby 5.1 to Dolby 2.0 weather than simple stereo.

Arc + Sub (Gen 1) + 2 x Play 1/ Stereo Play 3s/ Era 100 Stereo in Kitchen, One Stereo in Bedroom, Play 1 stereo pair in Study, Play 1in Bathroom, Sonos Move 2

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ABeezy13Author

Contributor I

If the Sonos is reporting Dolby 2.0 then that is what is being received.

I suspect that the signal being received is only Dolby 2.0. You’re going to have to find a source that you KNOW is Dolby 5.1 to test I think.

I’d be very surprised if your TV were converting Dolby 5.1 to Dolby 2.0 weather than simple stereo.

I’m going to test a few things tonight. For example most the content I do watch are digital copies movies, or steaming movies/services or even movies on my cable provider box.

here is a screen shot of Jurassic park fallen kingdom info from the vudu app:

(I’ll test this tonight)

so you can see it supports DD5.1 which is the case with a lot of content I watch but the app shows 2.0 a lot.

howvwer I know I have all my stuff correctly set up because it does show 5.1 sometimes. Just not all the time when it should so I don’t know the reason or logic behind it.

ironically enough cable seems to show 5.1 the most when I don’t think it’s truly even really using the surround sound paired L & R speakers (or its so quiet you can’t hear)

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nik9669a

Senior Virtuoso

Don’t forget Sonos only supports Dolby Digital. DD+ and DTS are not supported.

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ABeezy13Author

Contributor I

Don’t forget Sonos only supports Dolby Digital. DD+ and DTS are not supported.

So if I watch the movie in 4K, would my setup automatically use DD? Or watching in 4K forces me to use atmos or vision?

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nik9669a

Senior Virtuoso

In your listing example above, I interpret that to be:

UHD version is with Dolby Atmos audio;

HDX version is with DD+ audio;

SD version is with DD+

If so, I’m not sure of the compatibility of the audio your Beam will receive, or what it will do with it. If I’m wrong, I apologise!

A

ABeezy13Author

Contributor I

In your listing example above, I interpret that to be:

UHD version is with Dolby Atmos audio;

HDX version is with DD+ audio;

SD version is with DD+

If so, I’m not sure of the compatibility of the audio your Beam will receive, or what it will do with it. If I’m wrong, I apologise!

so what I’m curious about then in the example I shown. I naturally want to watch the movie in 4K as I have paid for that version and have a tv capable of 4K. So I’m I stuck between watching 4k and NOT using DD or using SD and using DD? Or is it very well possible to watch in 4K but also use DD.

Basically can you mix or match for lack of better terms or am I forced to only use atmos or digital if I watch in 4K? If so that’s really shitty

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