topic LPCM through eARC with QN95A in TV

LPCM through eARC with QN95A

JW88 — Thu, 10 Feb 2022 12:54:54 GMT

When are Samsung going to fix this?

For example, choosing LPCM output from PS5, passthrough option gets greyed out in TV. Changing back to Dolby in PS5 we get Passthrough again.

But then to next problem, then we are not getting good passthrough, we often get delayed audio, depending on what Dolby encode format we passthrough. It's like the tv still does something with the audio before it passthroughs.

High resolution audio works without error if I connect directly to sound system. But not if I connect to tv and try to passthrough. So it is the tv at fault, not anything else.

Re: LPCM through eARC with QN95A

Pugs1957 — Thu, 10 Feb 2022 14:12:51 GMT

You may wish to check this out https://www.reddit.com/r/PS5/comments/jz5pv7/linear_pcm_or_bitstream_dolby_or_bitstream_dts/

Re: LPCM through eARC with QN95A

JW88 — Thu, 10 Feb 2022 14:22:03 GMT

Well, all info there I know.

Of course I can connect PS5 directly to sound system, but then I can't play in 120hz or make use of my 2.1 HDMI ports, one of the big reasons I purchased this tv, since my audio system doesn't have 2.1 HDMI.

Re: LPCM through eARC with QN95A

Pugs1957 — Thu, 10 Feb 2022 14:27:33 GMT

Did you see the bit that stated a firmware update cured the passthrough problem?

Re: LPCM through eARC with QN95A

JW88 — Thu, 10 Feb 2022 14:32:08 GMT

Well, I have the latest firmware. 1904. And it is not fixed or it was fixed in an earlier firmware and got broken again later on with newer firmwares. Since both 1901 and 1902 and 1903 got taken down fairly quickly after releases after different bugs got reported.

My hopes are up, but still. It has been many months since the 2021 QN line got released, and if it isn't fixed before 2022 line gets out, it'll never be fixed.

Re: LPCM through eARC with QN95A

gotomasz — Mon, 07 Mar 2022 13:28:26 GMT

I have a samsung NeoQLED QE55QN91AAT and the same problem with 5.1 sound. When I play video directly from my home theater (DD +) everything works fine. When I do it via TV (audio played via HDMI (ARC)) the sound is STEREO. Before that, everything worked. I suspect that in my case the update v.1904 broke something. I only have PCM and Auto in the audio format options. "Samsung" please correct it as soon as possible.

Re: LPCM through eARC with QN95A

Bookworm — Mon, 04 Apr 2022 22:25:20 GMT

Is there any hope for this? Also, when can Samsung pass through TrueHD?

Re: LPCM through eARC with QN95A

JW88 — Mon, 04 Apr 2022 22:36:06 GMT

It works for me now. I'm getting TrueHd Dolby Atmos with PS5 using passthrough to my AVR.

Re: LPCM through eARC with QN95A

Bookworm — Tue, 05 Apr 2022 07:04:25 GMT

How did you verify? Was it a hardware fix or simple firmware update? The TrueHD without lpcm is dropping out/cutting off every few minutes and sometimes every few seconds. And if I use Apple TV, which is known to convert to lpcm, it's not sounding full TrueHD without lpcm conversion. The audio probably has half the volume than without lpcm conversion (but with drop out problem). So I am not convinced that lpcm passthrough is not dropping channels. Note, I am testing with 4K rip with lossless audio TrueHD track.

Re: LPCM through eARC with QN95A

JW88 — Tue, 05 Apr 2022 07:15:10 GMT

I have the 1904 firmware and have also manually updated the HDMI firmware to 78747. Don't know what have fixed it.

I watch movies and series with retail 4K HDR Bluray discs, it lights up Dolby Atmos and I have full sound in all audio channels.

In PS5 games I have the setting for audio in LPCM and I am getting surround.

Ifor Dolby TrueHD Atmos in PS5 it is need to change to bitstream, but it is not in audio settings for the PS5, it is in the settings in the disc player app.

Re: LPCM through eARC with QN95A

Bookworm — Tue, 05 Apr 2022 11:57:33 GMT

Wow that is the best news I have heard in my nearly 1 year attempt to fix TrueHD drop out issue. So you are saying somehow the Blu Ray TrueHD lossless audio is now passing through earc fine without any drop out? If so, I am definitely interested in this firmware. I was not even aware of this special HDMI firmware.

To double confirm, the blu Ray is connected to tv directly? And is the Q-Symphony working? Thanks in advance!

Re: LPCM through eARC with QN95A

JW88 — Tue, 05 Apr 2022 19:43:42 GMT

Yes, my PS5 is connected to the One Connect Box HDMI 4. And my hw-q960a Soundbar system in HDMI3 (the e-ARC port)

It works with the q-symphony to, yes .

I can send you the firmware file, you can then put it on usb and contact Samsung support and have them install it for you. Or you can install it yourself in the service menu.

But soon 1906 will be released with new HDMI firmware included I have heard.

Re: LPCM through eARC with QN95A

Bookworm — Tue, 05 Apr 2022 21:58:07 GMT

So, the only concerning part is, I was reading through avforums on that firmware and people claimed it didn't fix anything. But it would definitely be worth trying. How can I have the firmware from you? Thanks again for your time!

P.S. This is the avforums link (and the followup discussions that claim it didn't solve TrueHD dropout issue): https://www.avforums.com/threads/samsung-qn95a-neo-qled-owners-and-discussion-thread.2367208/post-30182822

Re: LPCM through eARC with QN95A

Anonymous User — Thu, 21 Apr 2022 14:35:19 GMT

@JW88

I doubt that it works.

Q-Symphony and all other soundbar-modes like "Surround" / "GamePro" / "Adaptive" are able to upmix a 2.0 Stereo-signal into 3.1/5.1/7.1.

I bet if you have the following setting:

- PS5: LPCM

- TV: Passthrough

- Soundbar: Mode "Standard" (without Q-Symphony or "Surround" / "GamePro" / "Adaptive")

then you will not have any sound from the center channel (just left and right channel).

I have the same issue with my 2020 Q90T.

Re: LPCM through eARC with QN95A

JW88 — Thu, 21 Apr 2022 14:42:47 GMT

No, I have on Standard and getting surround.

I'm pretty tech savvy on these things, so I know what the different modes do. Also I can read manual.

Re: LPCM through eARC with QN95A

Anonymous User — Thu, 21 Apr 2022 14:52:43 GMT

@JW88

Interesting, so maybe they have fixed the LCPM-passthrough issue on the 2021 models, but not on the 2020 😞 On 2020 models, you can't get a 5.1 LPCM signal form the PS5 through eArc. 5.1 is only possible with Dolby (DTS is not supported on Samsung TVs) and with Dolby, you have an audio delay.

Btw:

Q-Symphony has no "Standard"-mode. With Q-Symphony on, there is only "GamePro" and "Adaptive" available.

Re: LPCM through eARC with QN95A

Mbmanny — Tue, 26 Jul 2022 01:08:01 GMT

I have QN90A and it still doesn’t do LPCM over 2 channels. From Apple TV or from PlayStation. Only native TV apps does it work correctly.

Re: LPCM through eARC with QN95A

ragnar2022 — Wed, 03 Aug 2022 13:59:59 GMT

So what was the verdict on this?

I can only use DD from my Apple TV to my qn95a using eARC to Sonos ARC. If I try Dolbly Atmos I get LPCM surround in the Sonos App when using passthrough from the One connect box. Did the update fix similar issues?

Re: LPCM through eARC with QN95A

davidjill — Fri, 24 Feb 2023 10:52:08 GMT

I have a Samsung QE65QN95AATXXU

Using Sonos Arc surround system

Connected through quality HDMI (all swapped out and replaced)

Panasonic Blue Ray DVD player via HDMI

Stereo works fine on passthrough

Switch to multichannel or 5.1 and sound slurs and distorts!

Software on TV latest

Firmware on DVD player latest

Really frustrating

Re: LPCM through eARC with QN95A

ragnar2022 — Fri, 24 Feb 2023 13:18:38 GMT

Have you set the TV to HDMI eARC Auto and digital output to passthrough? 5.1 works for me at least if the source (bluray, Xbox or whatever)is set to DD 5.1.