Contributor I

Question

New LG TV's and 5.1 pass through

65 replies
101483 views

I know this is a recurrent topic, but I actually believe it would be very helpful if Sonos address this issue in a concise webpage with continuous updates. Right now the whole forum is full of questions about TV's ability to pass-through a 5.1 HDMI signal. The (so voted) most helpful comment on amazon about the playbar is about the problem of not getting a real surround but an artificial constructions from a PCM 2.0 signal from the TV. And this is also the main issue mentioned in CNET for the review of the playbar.

So, guys, could you make a systematic and compressive study/review of which TV's will work with the Sonos surround system? I'm currently considering to get a full sonos surround pack, but I cant not make a decision before knowing if my LG 65UB930T (LG65UB9500 in USA) is able to pass the signal form the devices connected to the HDMI ports. And I believe this situation is generalized for all potential consumers, many of them buying your product without being aware of the issue with the 5.1 signal.

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C

Chris_190

Contributor I

I have fixed this problem on my LG 55LA690V-ZB TV. Basically I wrote to LG support and they sent me the following settings and it now works fine.

From LG support
The Sound Out settings, I would suggest ensuring the AV Sync Adjust is turned on, as well as Bypass.
I would also check that the Sound Output is set to Auto and not PCM, as PCM is limited to 2.1 Sound Output.

It didn't work until I ticked the Bypass box then it worked fine.

Hope this helps
Chris

B

bigtim11

Lyricist III

Thanks for all the replies.

The technician just left. The EDID in the service menu was set to DTS, which he changed to AC3 and that worked. The playstation now plays crisp 5.1 Dolby Digital. The only thing we couldn't fix was my pc which uses Nvidia Geforce driver. My MacBook plays 5.1 but my pc won't. We checked the other settings for the EDID but couldn't sort that out so I assume its a graphics/sound card issue which is a problem for another day.

Airgetlam

There was someone else posting a similar issue yesterday, about a graphics card that didn't actually output 5.1 through the HDMI cable. I think he/she replaced the video card with a newer one.

I wonder what the cost difference between the two sorts of chips is.

In any case, I'm delighted that you're on your way.

Bruce

Mike Allen

Contributor I

Nice, thanks for the quick reply. Do you have the Sub with the Playbar? I currently have the Playbard and two Play 1s and don't notice the canceling out that you mention but I don't have the sub and am considering adding that soon.

I have the Playbar and Sub, and just added two Play 1's, and the 5.1 playback from my Tivo Bolt, Netflix via my Sony 4k TV is really nicely distributed. HDMI from the Tivo to the TV, and optical cable from TV to Playbar.

Z

Ziptbm

Lyricist II

I have an LG OLED55B6P and it passes through 5.1 no problem.

We're any additional steps required to get this working with your 2016 LG OLED TV?

I have the Oled65b6p and this is the only shimmer of compatibility that I've been able to find. Interested in Sonos, but have not purchased yet.

Mike Allen

Contributor I

I have the Sony XBR55X900C connected via optical cable to the Sonos PlayBar, Sub Woofer, and two Play 1's and it works great. MyTivo Bolt is connected to the Sony TV via HDMI cable to input all audio and video. I did change the audio setting on the Tivo Bolt under Dolby Audio to PCM only (no Dolby) as per Sonos tech recommendation.

Z

Ziptbm

Lyricist II

I have an LG OLED55B6P and it passes through 5.1 no problem.

We're any additional steps required to get this working with your 2016 LG OLED TV?

I have the Oled65b6p and this is the only shimmer of compatibility that I've been able to find. Interested in Sonos, but have not purchased yet.

I can confirm that the OLED65B6P DOES support 5.1 pass-through. It required going into settings --> Sound --> then setting the "Sound Out" option to "LG Sound Sync (Optical)" and then setting "AV Sync Adjustment" to "On" and enabling "Bypass". After this, I got 5.1 fine from an Xbox One S (configured with bitstream output via HDMI and Dolby Digital Surround.

Z

Ziptbm

Lyricist II

I have an LG OLED55B6P and it passes through 5.1 no problem.

We're any additional steps required to get this working with your 2016 LG OLED TV?

I have the Oled65b6p and this is the only shimmer of compatibility that I've been able to find. Interested in Sonos, but have not purchased yet.

I can confirm that the OLED65B6P DOES support 5.1 pass-through. It required going into settings --> Sound --> then setting the "Sound Out" option to "LG Sound Sync (Optical)" and then setting "AV Sync Adjustment" to "On" and enabling "Bypass". After this, I got 5.1 fine from an Xbox One S (configured with bitstream output via HDMI and Dolby Digital Surround.

2 corrections:
1. The LG must be set to 'Audio Out (Optical/HDMI ARC)' with the optical set to 'Auto', not the LG Sound Sync option.
2. The Xbox must be on Dolby Digital, not DTS.

With bypass enabled per the above, the Sonos controller app should now show 'Dolby Digital 5.1'.

T

Teddy D.

Lyricist I

Ziptbm,

THANK YOU!!!!

I've been trying to get this working for hours! You nailed it! Can't even imagine how much time I would have spent trying to figure it out. Confirmed and working like a charm!

Cazualchatter

Enthusiast I

Does anyone know if a LG 55LW5600 passes true 5.1 through the digital output?

If this is not too late a reply, then I have a LG47LW5500 that passes Dolby 5.1 very well to the playbar.

Music + Movies on 2x Play 1s + Sub + Playbar. Amazon Echo Dot + Google Home Mini. Beautiful impulsive music.

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