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samjhathaway
Trending Lyricist I
February 9, 2024

ARC outputting Stereo PCM when playing 4K Blu Ray

  • February 9, 2024
  • 21 replies
  • 2284 views

Hi all,

I recently upgraded my Beam Gen 2 to an Arc and ever since I’m only getting Stereo PCM outputted when I play a 4K Blu Ray that outputs DTS HD. This was working fine on my Beam 2 and it would convert this to PCM Multichannel 7.1.

My set up:

TV - LG C1 - Passthrough and eArc enabled 

Sound - Arc, Sub Gen 3, Era 100’s x2

4K Player - Panasonic DP-UB450EB-K

 

Dolby Atmos works fine but since changing to an Arc it’s only converting DTS HD to stereo PCM.

I’ve looked through all the posts on here and it seems a lot of people have had this problem before. I’ve amended my settings on the Blu Ray player but this hasn’t worked.

Any help would be greatly appreciated.

Thank you

 

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21 replies

GuitarSuperstar
Lead Maestro
February 10, 2024

Make sure the DTS/DTS-HD setting on the Panasonic player is set to PCM. Also be sure to set the HDMI Input Audio Format setting on the TV to Bitstream.

"Receive with simplicity everything that happens to you." - Rashi
samjhathawayAuthor
Trending Lyricist I
February 10, 2024

Thanks for your reply I really appreciate it. 

Unfortunately I’m still having the same issue and it’s still outputting in Stereo PCM. I’ve attached some pictures of my settings.

 

GuitarSuperstar
Lead Maestro
February 10, 2024

Is the HDMI Input Audio Format setting on the TV set to Bitstream?

Try unplugging the TV and Arc from power for a couple of minutes.

"Receive with simplicity everything that happens to you." - Rashi
samjhathawayAuthor
Trending Lyricist I
February 10, 2024

Is it yes, HDMI input set as Bitstream across all 4 ports. Equipment has been powered off a few times. Just really strange it’s not working since changing from Beam 2 to an Arc. No settings have been changed. 

The 4k Blu Ray I’ve tested this on is The Shining. Previously would get multichannel pcm 7.1 and now get stereo PCM.

GuitarSuperstar
Lead Maestro
February 10, 2024

Did you actually unplug the equipment from power? Is the firmware up to date on the TV and Panasonic player?

"Receive with simplicity everything that happens to you." - Rashi
samjhathawayAuthor
Trending Lyricist I
February 10, 2024

I do power it off every night at the plug but I’ve just completely removed all the power cables for 10 minutes so they are isolated from the power and yes still getting the same problem. Firmware is up to date on the Panasonic 4K player.

I've attached another screenshot with a bit more information when playing the disc.

 

GuitarSuperstar
Lead Maestro
February 10, 2024

Try toggling the DTS/DTS-HD setting to Bitstream and back to PCM. And disconnect/reconnect all of the HDMI cables on back of the TV.

"Receive with simplicity everything that happens to you." - Rashi
samjhathawayAuthor
Trending Lyricist I
February 11, 2024

Unfortunately still not working. It’s really frustrating as I get multichannel pcm 5.1 when watching some stuff on TV. 

samjhathawayAuthor
Trending Lyricist I
February 12, 2024

Tested the 4K Disc on my PS5 and it outputs multichannel pcm 5.1 but obviously can’t get Dolby Vision on that and I want to use my 4K player. Does that rule out my TV and Soundbar then? Just really don’t understand why it’s not working on the 4K player.

GuitarSuperstar
Lead Maestro
February 12, 2024

There isn’t any reason why the Arc shouldn’t support Multichannel PCM audio from the Panasonic player especially since it worked with the Beam.

Try connecting the Panasonic to a different HDMI port on the TV and test again.

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