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ntx
Contributor I
December 12, 2022

Crackling with Sonos Beam gen 2 (Multi PCM 5.1)

Hello,

I experience massive problems with my beam gen 2 when watching Multichannel PCM 5.1 content.
While Multichannel PCM 5.1 content is playing I get crackling and popping sounds out of the beam sporadically but constant.
The issue occurs with Multi PCM 5.1 format only.
No issues at all With Dolby Atmos / Dolby TrueHD / DTS / Stereo / Dolby Digital.

I tested Multichannel PCM 5.1 Content with:
Apple TV 4k -> Cracklings and pops
PS5 -> Cracklings and pops

What i’ve tried:
Changed HDMI Cables -> no effect
Tried different settings in the sonos app -> no effect
Restarted everything -> no effect
changed sonosnet channels -> no effect


My Setup:
Philips OLED807 Series
Beam gen 2 with two surround speakers
Settings: Multichannel bypass on TV with eARC turned on
Sonos connected over ethernet

Here I have a diagnostics code: 412271189


There are other people on the forums who experience the same issues, so i think its more of a software problem rather then a hardware issue. Some say that this problem occurred after a sonos update, but i cannot verify this.
The problem is easily reproducible.
 

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Pinned Reply By Corry P

Hi @ntx et al

We now recommend you reach out to the TV manufacturer (LG) as this behaviour is also occurring with different soundbar manufacturers (so it’s not a Sonos-specific issue).

Alternatively, please utilize different audio formats from McLPCM 5.1 (e.g., McLPCM 7.1, DD+, etc).

I hope this helps.

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33 replies

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Coldness
Lyricist III
June 2, 2023

Dear Corry,

Thank you for your feedback.

Indeed, from the experiment I did with a FuryArc it was quite clear that the issue comes from the TV Manufacturer.

Same player, same media, same cable, same sound settings with a FuryArc doing the Audio no sound issue whereas with TV doing it, a lot of cracks for all PCM above 5.1. (shield, PS5, etc)

In my case it’s a Philips 65OLED807 and they are reviewing this for months now without feedback…

With the Shield if I activate Dolby system, then the PCM 5.1 goes to DD+ 2.0. So to go around this I transcode each of my AAC5.1 medias with ffmpeg to DD+5.1 and since then it’s working. without issues.

Hope this get resolved soon.

Have a good week-end

    MiseryGuts
    Lyricist III
    July 31, 2023

    It's been a while, and I wanted to keep you updated on my progress with this issue and with Philips customer service. Going back two months, I called them and had a nice conversation with an adviser who sent me an email to which I could respond. I described the issue in great detail, including testing my equipment on two different kinds of TVs, using various cables, and borrowing an Arcana to separate the sound. I also included a video of the issue happening at the beginning of John Wick 4. They responded by sending me a utility download, which I had to install on a USB stick and put in into the TV. All events would be automatically recorded. I did this and responded through email. On the 19th of July, I contacted them for an update and received the following:They respondied with a utility download that I had to install on a USB stick and insert into the TV. It would automatically log all events. I did this and emailed them back. On the 19th July I chased them for an update and I received this:

    “ Thank you for the information provided and for your patience. We have requested an update on this case, there seems to be a Software glitch, and we are actively working on a resolve. We will contact you as soon as possible to provide further information. “

    Following this, I checked the status of my case and discovered that it had been altered to closed, so I called them. "HDMI is very complicated, and there will always be problems," was the comment I received. "We're looking into it". I questioned why my case had been closed, but they didn't respond and ended the conversation.

    I love my Philips TV, yet it bothers me that I regret purchasing it. Personally, I don't think they'll be able to solve it. He kept telling me it was software, not hardware, yet this had been reported to them for months.

      jillesv1980
      Lyricist I
      November 19, 2023

      Same here. Crackling pops with Multichannel PCM sound. OLED806 and Sonos ARC.

      Still no hopes for a fix?

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