Hi! It’s a long-running problem. Please join us and add your experience in the main thread:

https://en.community.sonos.com/home-theater-229129/sonos-arc-loud-pop-then-audio-loss-6852340
 

May I assume you are using an Apple TV or Xbox? Both are affected. Once you’ve heard your first pop, it will start returning within a short time of playing Atmos content again. Sonos recommendation is that we turn off Atmos on the Apple TV and/or Xbox. 

They need to fix this… I got in touch with customer service about this issue around 2 or 3 months ago and they recommended changing the channel of the network of the Sonos system and it seemed that it did the trick for a while (at least when I used only my Xbox), but the moment I play music with Apple Music… I start getting that loud “pop” that even makes my ears hurt for a while. Today, after a while without hearing it (mainly because I had only used my Sonos system to play sound from the TV/Xbox/PS5), I tried playing music again directly from the Apple TV and it happened again.

I have the same issue with ATV ! Popping! I’ve replaced the HDMI (already had a fully high speed HDMI) reset the SONOS!

Nothing fixes this issue. 
SONOS does not honor their warranty with this issue. 
horrible that I replaced my play bar and 2x Sonos 1 for Era 300’s and an Arc that does not F’N work

I do not game, I believe it is an Adonis issue not interaction with other platforms.  Why would another platform cause an arcing sound?  That would logically make the system at fault.  C’mon Sonos, fixit.

I do not game either. Sonos sent a new arc to me and it’s been good

Hi @Enigmaticsoul 

Good news! We are pleased to share that our team has identified a fix for the popping sound on Arc and it will be shipped to all customers as part of a software release today, Thursday Nov 16 at 09:30 ET, 14:30 GMT, 15:30 CET. Please note that some app stores may take an extra hour or two for it to become available.

During our investigation we uncovered a rare bug that impacts how Sonos Arc and Beam (Gen 2) in certain home theater configurations process Dolby MAT, a streaming technology which is used to deliver Dolby Atmos audio over HDMI. Occasionally a Sonos product will receive a corrupted audio segment from an external source and needs to filter out unwanted audio data. The bug we identified was allowing our Dolby decoder to play audible errors on certain home theater setups rather than concealing them. The solution we’ve built and tested improves our Dolby decoder so it better filters out corrupt audio data that can manifest as a popping sound. We’ll continue to monitor customer feedback closely after the fix has been released and ship additional updates if necessary.

We strive to deliver the best listening experience possible and work to address major issues that impact our customers. We apologize for the disruption this bug has caused and want to thank you for your patience while our team developed a fix.

We would also like to thank our community users for their detailed setup information and steps to reproduce the issue, which were helpful to us in uncovering the cause of the bug.

If you have any questions, please post them on the main related thread and I’ll do my best to answer them.

This thread will be closed to keep all queries in that one place.