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Contributor I
November 17, 2020

LG C9 + Arc + UB820 / Multichannel PCM for DTS Blu-Ray discs

  • November 17, 2020
  • 344 replies
  • 32108 views

I’m running an LG C9 with a Panasonic UB820 Blu-ray player, Sonos Arc + Sub gen 3 + One SL surrounds. The lack of DTS support on the Arc has been frustrating for non Dolby encoded Blu-ray discs, so I have been eagerly awaiting the multichannel PCM update.

It’s finally arrived (thanks, Sonos!) and I tried playing a DTS encoded Blu-ray and… no dice. Still stereo PCM 2.0. Has anyone running a similar set-up managed to get 5.1 PCM output from the Arc?

The C9 supports eARC and multichannel PCM, I’m using 48gbps HDMI cables that support up to 8k60Hz, all of the devices are up to date, I have the C9 set to PCM with eArc enabled, DTS output set to PCM on the UB820… I’m really at a loss here. Any ideas or suggested settings?

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344 replies

Trending Lyricist I
January 6, 2025

For anyone curious, I managed to get this working for DTS-HD pass-through on an LG C series (9), with Arc, sub and two play 3's as surrounds (I also have a Phillips Hue sync box working as a HDMI switch) by using following settings:

• On Panasonic UB820:

- all audio set to "bitstream"

- secondary audio "off"

• On LG C Series:

- Audio set to pass-through

- eArc set to "off" 

Result is Sonos outputs at DTS 5.1

It was as easy as just toggling eARC to "off" for it to kick in.

Hope this helps anyone still struggling with DTS-MD.

​​​​​​

I couldn’t get mine to work on my Samsung 7 Series tv even with selecting the Arc off and restarting the components.  My movies start in DD 5.1 when in menu mode but switches to Stereo PCM when it starts on the Sonos app.  This is frustrating…

What Blu-ray Disc are you playing?

I’ve tried about 12 movies total,  they are all older though, so nothing that should not work.  They all have older Dolby formats or Atmos.  The Atmos works fine and as I mentioned, the 5.1 shows up on menus just not when the movie starts.  

What specific Samsung TV model do you have? Choose one of the movies without Atmos and tell me what the title is.

Samsung 7 series and currently I’m watching pacific rim

 

Lead Maestro
January 6, 2025

For anyone curious, I managed to get this working for DTS-HD pass-through on an LG C series (9), with Arc, sub and two play 3's as surrounds (I also have a Phillips Hue sync box working as a HDMI switch) by using following settings:

• On Panasonic UB820:

- all audio set to "bitstream"

- secondary audio "off"

• On LG C Series:

- Audio set to pass-through

- eArc set to "off" 

Result is Sonos outputs at DTS 5.1

It was as easy as just toggling eARC to "off" for it to kick in.

Hope this helps anyone still struggling with DTS-MD.

​​​​​​

I couldn’t get mine to work on my Samsung 7 Series tv even with selecting the Arc off and restarting the components.  My movies start in DD 5.1 when in menu mode but switches to Stereo PCM when it starts on the Sonos app.  This is frustrating…

What Blu-ray Disc are you playing?

I’ve tried about 12 movies total,  they are all older though, so nothing that should not work.  They all have older Dolby formats or Atmos.  The Atmos works fine and as I mentioned, the 5.1 shows up on menus just not when the movie starts.  

What specific Samsung TV model do you have? Choose one of the movies without Atmos and tell me what the title is.

Samsung 7 series and currently I’m watching pacific rim

 

What specific model number is the 7 series?

Pacific Rim has a Dolby Atmos track. Choose another movie without an Atmos track.

"Receive with simplicity everything that happens to you." - Rashi
Trending Lyricist I
January 6, 2025

For anyone curious, I managed to get this working for DTS-HD pass-through on an LG C series (9), with Arc, sub and two play 3's as surrounds (I also have a Phillips Hue sync box working as a HDMI switch) by using following settings:

• On Panasonic UB820:

- all audio set to "bitstream"

- secondary audio "off"

• On LG C Series:

- Audio set to pass-through

- eArc set to "off" 

Result is Sonos outputs at DTS 5.1

It was as easy as just toggling eARC to "off" for it to kick in.

Hope this helps anyone still struggling with DTS-MD.

​​​​​​

I couldn’t get mine to work on my Samsung 7 Series tv even with selecting the Arc off and restarting the components.  My movies start in DD 5.1 when in menu mode but switches to Stereo PCM when it starts on the Sonos app.  This is frustrating…

What Blu-ray Disc are you playing?

I’ve tried about 12 movies total,  they are all older though, so nothing that should not work.  They all have older Dolby formats or Atmos.  The Atmos works fine and as I mentioned, the 5.1 shows up on menus just not when the movie starts.  

What specific Samsung TV model do you have? Choose one of the movies without Atmos and tell me what the title is.

Samsung 7 series and currently I’m watching pacific rim

 

What specific model number is the 7 series?

Pacific Rim has a Dolby Atmos track. Choose another movie without an Atmos track.

It’s from 2013,  and was purchased when new.  It has 5.1 and 7.1 respectively only.  This version does not have Atmos.  I’ve used others with the same result though.   Atmos tracks play just fine and Atmos shows up on the Sonos App.    Model number is UN82TU700FXZA

Lead Maestro
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

"Receive with simplicity everything that happens to you." - Rashi
Trending Lyricist I
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Lead Maestro
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Set the Blu-ray player to these settings:

  • Dolby Audio: Bitstream
  • DTS/DTS-HD: PCM
  • Secondary Audio: Off

Set the TV to these settings:

HDMI-eARC Mode: Auto

Digital Output Audio Format: Pass-Through


If this doesn’t give you “Multichannel PCM” audio, then your TV model doesn’t support LPCM pass through and you are stuck with Stereo PCM audio from all DTS-encoded discs. This is a known issue with all Samsung TVs released in 2020.

"Receive with simplicity everything that happens to you." - Rashi
Trending Lyricist I
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Set the Blu-ray player to these settings:

  • Dolby Audio: Bitstream
  • DTS/DTS-HD: PCM
  • Secondary Audio: Off

Set the TV to these settings:

HDMI-eARC Mode: Auto

Digital Output Audio Format: Pass-Through


If this doesn’t give you “Multichannel PCM” audio, then your TV model doesn’t support LPCM pass through and you are stuck with Stereo PCM audio from all DTS-encoded discs. This is a known issue with all Samsung TVs released in 2020.

I was thinking about purchasing the Philips sync box to use the led lights on the tv (I have hue lights in the house).  Would this suffice?

Lead Maestro
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Set the Blu-ray player to these settings:

  • Dolby Audio: Bitstream
  • DTS/DTS-HD: PCM
  • Secondary Audio: Off

Set the TV to these settings:

HDMI-eARC Mode: Auto

Digital Output Audio Format: Pass-Through


If this doesn’t give you “Multichannel PCM” audio, then your TV model doesn’t support LPCM pass through and you are stuck with Stereo PCM audio from all DTS-encoded discs. This is a known issue with all Samsung TVs released in 2020.

I was thinking about purchasing the Philips sync box to use the led lights on the tv (I have hue lights in the house).  Would this suffice?

The Philips Hue box won’t do anything to change your TV’s inability to pass through LPCM or DTS audio. Your only options are to get an eARC adapter like the HDFury Arcana or get a new TV.

"Receive with simplicity everything that happens to you." - Rashi
Trending Lyricist I
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Set the Blu-ray player to these settings:

  • Dolby Audio: Bitstream
  • DTS/DTS-HD: PCM
  • Secondary Audio: Off

Set the TV to these settings:

HDMI-eARC Mode: Auto

Digital Output Audio Format: Pass-Through


If this doesn’t give you “Multichannel PCM” audio, then your TV model doesn’t support LPCM pass through and you are stuck with Stereo PCM audio from all DTS-encoded discs. This is a known issue with all Samsung TVs released in 2020.

I was thinking about purchasing the Philips sync box to use the led lights on the tv (I have hue lights in the house).  Would this suffice?

The Philips Hue box won’t do anything to change your TV’s inability to pass through LPCM or DTS audio. Your only options are to get an eARC adapter like the HDFury Arcana or get a new TV.

Ok thank you for the assist!

Trending Lyricist I
January 6, 2025

​@Peaceofmind105 I’m assuming you meant to say you purchased the TV in 2023, not “2013” since your TV is equipped with eARC. And I’m assuming you are playing the Pacific Rim standard Blu-ray disc, not the 4K UHD disc, correct?

Correct, the BLU-ray was purchased in 2013 and is in the older formats.  TV is newer since it has the e-Arc option 

Set the Blu-ray player to these settings:

  • Dolby Audio: Bitstream
  • DTS/DTS-HD: PCM
  • Secondary Audio: Off

Set the TV to these settings:

HDMI-eARC Mode: Auto

Digital Output Audio Format: Pass-Through


If this doesn’t give you “Multichannel PCM” audio, then your TV model doesn’t support LPCM pass through and you are stuck with Stereo PCM audio from all DTS-encoded discs. This is a known issue with all Samsung TVs released in 2020.

I was thinking about purchasing the Philips sync box to use the led lights on the tv (I have hue lights in the house).  Would this suffice?

The Philips Hue box won’t do anything to change your TV’s inability to pass through LPCM or DTS audio. Your only options are to get an eARC adapter like the HDFury Arcana or get a new TV.

Ok thank you for the assist!

I am in the US, are there any alternatives to the Arcana?