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Contributor I
December 8, 2020

Sonos Arc loud pop then audio loss

I was playing on my Xbox when the arc suddenly made an extremely loud pop sound and then lost audio completely. The app wouldn’t let me adjust the volume and Alexa wake up didn’t emit its usual tone. I had to remove the power from the arc and reapply which resumed the audio. I’m concerned that one of the speakers in the arc may have been damaged when this happened. Has anyone had this issue?

We have had no issues with the arc since purchasing it earlier this year.

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Pinned Reply By Corry P

Hi Everyone!

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.

 

1202 replies

Lyricist III
December 16, 2022

This is one involving LG soundbar making ‘horrendous’ popping noise… 

https://forums.audioholics.com/forums/threads/horrendously-loud-and-random-popping-noise-from-lg-sl8yg-soundbar-paired-with-lg-c9-oled-after-lastest-04-71-05-software-update.116791/

It seems to me to have been going on for a while - so I (still) wonder if it’s a codec problem?

Hi Ken, I cannot see anything recent on other soundbars whereas you can find lots of reports on the Arc. When this first happened on mine it was a really loud bang so not crackling/popping.

 

 

 

 

 

Ken_Griffiths
December 16, 2022

This is one involving LG soundbar making ‘horrendous’ popping noise… 

https://forums.audioholics.com/forums/threads/horrendously-loud-and-random-popping-noise-from-lg-sl8yg-soundbar-paired-with-lg-c9-oled-after-lastest-04-71-05-software-update.116791/

It seems to me to have been going on for a while - so I (still) wonder if it’s a codec problem?

Hi Ken, I cannot see anything recent on other soundbars whereas you can find lots of reports on the Arc. When this first happened on mine it was a really loud bang so not crackling/popping.

It’s not a topic that I’ve greatly researched personally, so forgive me, but I know the ‘popping’ sound on soundbars has been around for a while, and it was (is?) affecting other manufacturers products too - I assume everyone switched to Sonos at the time the issue was first encountered ..ha ha 😂 (just joking of course).

I haven’t gone looking/found recent reports, but will post here if I come across any, but I was merely mentioning that this ‘popping’ sound has been around a while - whether that be loud, or otherwise, on manufacturers soundbars and in that other thread I linked to earlier, it shows Sonos Staff are aware and mentioned other brands were affected with the same/similar issue and so were investigating. 

It was the case that someone earlier in the thread here, was inferring Staff had not commented and didn’t mention that other brands were having the same issue. That’s why I made mention of that other thread and Staff comment.

Also I jumped in here to say that it may not be a Dolby Vision issue, as I use that video format often with my TV, but when most (maybe not all) people seem to encounter the ‘popping’ sound, they are/have mostly been using the MC LPCM codec playing Atmos audio from either an Xbox, Apple TV 4K or similar device, so if that is ‘perhaps’ widely connected to the ‘popping’ sound and a possible culprit here, it makes more sense to me to switch off MC LPCM transcoding and switch (if possible) to using DD+ (Atmos) instead or Dolby True HD (Atmos), as I’ve not ‘yet’ seen a report of those codecs causing the ‘popping’ sound. I use those codecs almost every day with an Arc, or Beam (gen2) and not seen an issue so far and I’ve had both products since they were first released.

That's not to say that this matter should not be fixed of course, by whoever is responsible, (it may or may not be on Sonos to fix this), but at least see if not using MC LPCM becomes one way to avoid the issue until the matter is ‘perhaps’ resolved.

Enthusiast II
December 16, 2022

I tend to agree with this view. They were aware of it when I reported the issue a week ago. It is a bit of a concern that they have an Atmos product out there that cannot reliably play this format. It seems there are a number of different configurations/sources that I think eliminate anything upstream of the ARC. 

I hadn't experienced this before as my previous TV only had ARC and not EARC so could not pass lossless atmos. It surprised me how long this issue has been going and I wonder how many others have not experienced it due to their TV not being able to pass through a full Atmos signal.

Sonos Staff have mentioned they are aware of this issue in the community here and stated they were investigating, but that the matter was also an issue with other manufacturers products too and that’s certainly reported online, as links were provided to other soundbars having the issue. So it appears that it’s an issue where the ball is not in Sonos’ court - but I agree it needs an urgent fix, (if possible) by whoever is responsible - the last I saw, was to switch off using Atmos transcoded to multichannel LPCM (uncompressed) and use DD+ (Atmos) or DD TrueHD (Atmos) codecs instead. So perhaps try that.

I completely disagree with this statement. Simply because other manufacturers also have a defective product does not alleviate the responsibility Sonos has to its customer base and it’s reputed reputation as a premium quality sound system company.

While it is true, being a smaller company they do not have the resources that major manufacturers do when it comes to technical support or call centres. Being a smaller company, one would expect that when a large contingent of your customer base has the same defect with your product, the company would have a more hands on approach to a solution. One can argue this point all day.

My theory is derived from working for large Japanese corporation. Where deadlines for software and hardware forced releases of defective product. Deadlines caused by contracts with major retailers for shelf space.

Sonos does not have this issue. They have the time and freedom to address defects and errors. I’ve searched for this issue in other products. So far none have the same mitigating factors that this error has. 

As I’ve already stated, if this was an easy software fix, it would have been implemented. Granted at the time the Sonos Arc was introduced, eARC TVs were few and far between ,due to the limited number of models and the excessive cost of premium TVs released to the consumer market, obviously the Sonos engineers designed the Sonos while testing their units on the current eArc TVs at the time, and possibly never tested them with an Xbox Series X during development. Considering how old the Sonos Arc is, there has been more then enough opportunity to address the error.

When a company released a product that is advertised to be one of the best Dolby Atmos sound bars on the market, and then said product has a defect that prohibits the Dolby Atmos product to play Dolby Atmos. Do I really have to spell this out?

And if you’re saying that Sonos Reps have told you that “Oh this is a known issue and other companies have the same issue, here’s some links to other posts talking about how other companies have the same problem” I call nonsense. That does not sound like a PR statement or a statement any representative of a company would make. Unless they either have no idea what they’re talking about, or were trained to tell the customer nonsense to… ‘nuff said. 

Enthusiast II
December 16, 2022

This is one involving LG soundbar making ‘horrendous’ popping noise… 

https://forums.audioholics.com/forums/threads/horrendously-loud-and-random-popping-noise-from-lg-sl8yg-soundbar-paired-with-lg-c9-oled-after-lastest-04-71-05-software-update.116791/

It seems to me to have been going on for a while - so I (still) wonder if it’s a codec problem?

Hi Ken, I cannot see anything recent on other soundbars whereas you can find lots of reports on the Arc. When this first happened on mine it was a really loud bang so not crackling/popping.

It’s not a topic that I’ve greatly researched personally, so forgive me, but I know the ‘popping’ sound on soundbars has been around for a while, and it was (is?) affecting other manufacturers products too - I assume everyone switched to Sonos at the time the issue was first encountered ..ha ha 😂 (just joking of course).

I haven’t gone looking/found recent reports, but will post here if I come across any, but I was merely mentioning that this ‘popping’ sound has been around a while - whether that be loud, or otherwise, on manufacturers soundbars and in that other thread I linked to earlier, it shows Sonos Staff are aware and mentioned other brands were affected with the same/similar issue and so were investigating. 

It was the case that someone earlier in the thread here, was inferring Staff had not commented and didn’t mention that other brands were having the same issue. That’s why I made mention of that other thread and Staff comment.

Also I jumped in here to say that it may not be a Dolby Vision issue, as I use that video format often with my TV, but when most (maybe not all) people seem to encounter the ‘popping’ sound, they are/have mostly been using the MC LPCM codec playing Atmos audio from either an Xbox, Apple TV 4K or similar device, so if that is ‘perhaps’ widely connected to the ‘popping’ sound and a possible culprit here, it makes more sense to me to switch off MC LPCM transcoding and switch (if possible) to using DD+ (Atmos) instead or Dolby True HD (Atmos), as I’ve not ‘yet’ seen a report of those codecs causing the ‘popping’ sound. I use those codecs almost every day with an Arc, or Beam (gen2) and not seen an issue so far and I’ve had both products since they were first released.

That's not to say that this matter should not be fixed of course, by whoever is responsible, (it may or may not be on Sonos to fix this), but at least see if not using MC LPCM becomes one way to avoid the issue until the matter is ‘perhaps’ resolved.

I agree this might be a codec issue, however I have tried to look for articles of other sound bars from other manufacturers, however I have not been able to find this issue with the same mitigating factors.
 

As of now I do not see a correlation. As you mentioned in jest, other sound bars may have had popping issues and Sonos came out with the Arc and then people jumped to buy a new product that supposedly is superior without that problem.

I gave up my 7.1 traditional sound system for minimalistic ideals. My point is, when a company is establishing a reputation, releases and advertises a product that has been sold to a consumer, and the product has been found by the customer to have a defect.

That company has the responsibility to address the issue and provide a solution in a timely manner. Two years is more than enough time to address the issue. 

 

Enthusiast II
December 16, 2022

I cannot find anything recent that relates to this particular issue with other soundbars. The latest one (2 years ago) relates to a JBL soundbar. I cannot see any mention anywhere of other premium soundbars having this kind of issue. 

 

A lot of those reports talk about popping/crackling noise whereas the Sonos is a loud bang - probably the term popping is not the right description in this case.

Well it was from an old thread - I did find these in a quick search;

https://www.cinemaequip.com/why-is-my-samsung-soundbar-making-crackling-noise/

https://www.theaudiocritic.com/why-does-my-soundbar-make-popping-noises-n25

If I find others, when I have more time, I will post them. 

It’s not an issue I’ve personally encountered with my Arc or Beam, but then again I don’t use MC LPCM as I don’t have an Xbox or Apple TV 4K etc. (however I do use Dolby Vision FWIW🤔?)

As I’ve clearly stated, there is a sure fire way to recreate the error. I’ve read your links, and I’ve searched other articles when I initially encountered this error. NONE of these links including the ones you’ve mentioned are relevant as they are not the same error and do not have the same mitigating factors that cause the issue. We have all tried looking for solutions and reasons, hence discovering this thread. 

Do you have a vested interest in Sonos stock? 🧐 All joking aside. I’ve thoroughly tried to find other links of other sound bars that have the same factors that result in the exact same kind of error. Nothing. Which is how I ended up on this thread. 
 

On every product I own, I personally take them apart and fix them if I can find a solution. If it is not too costly. So I spend a lot of time on message boards and Reddit. I have not found anything on other sound bars that are relevant to this issue. 
 

Ken_Griffiths
December 16, 2022

I completely disagree with this statement. Simply because other manufacturers also have a defective product does not alleviate the responsibility Sonos has to its customer base and it’s reputed reputation as a premium quality sound system company.

While it is true, being a smaller company they do not have the resources that major manufacturers do when it comes to technical support or call centres. Being a smaller company, one would expect that when a large contingent of your customer base has the same defect with your product, the company would have a more hands on approach to a solution. One can argue this point all day.

My theory is derived from working for large Japanese corporation. Where deadlines for software and hardware forced releases of defective product. Deadlines caused by contracts with major retailers for shelf space.

Sonos does not have this issue. They have the time and freedom to address defects and errors. I’ve searched for this issue in other products. So far none have the same mitigating factors that this error has. 

As I’ve already stated, if this was an easy software fix, it would have been implemented. Granted at the time the Sonos Arc was introduced, eARC TVs were few and far between ,due to the limited number of models and the excessive cost of premium TVs released to the consumer market, obviously the Sonos engineers designed the Sonos while testing their units on the current eArc TVs at the time, and possibly never tested them with an Xbox Series X during development. Considering how old the Sonos Arc is, there has been more then enough opportunity to address the error.

When a company released a product that is advertised to be one of the best Dolby Atmos sound bars on the market, and then said product has a defect that prohibits the Dolby Atmos product to play Dolby Atmos. Do I really have to spell this out?

And if you’re saying that Sonos Reps have told you that “Oh this is a known issue and other companies have the same issue, here’s some links to other posts talking about how other companies have the same problem” I call nonsense. That does not sound like a PR statement or a statement any representative of a company would make. Unless they either have no idea what they’re talking about, or were trained to tell the customer nonsense to… ‘nuff said. 

Well (hopefully) you can see exactly what the Staff said, as I posted the link to the comment in the earlier post above.

I truly didn’t say anything about it alleviating the responsibility of any manufacturer, including Sonos, so not sure where you are coming from with that remark?

I was merely highlighting, other branded hardware had the same/similar issue and that the instances of the ‘popping’ that I’ve personally seen reported, seemed to be linked with playing MC LPCM ‘Atmos’ audio from devices such as XBox, Apple TV 4K etc. …and was suggesting to perhaps set that codec aside and use DD+ (Atmos) or Dolby TrueHD (Atmos) instead, at least until the matter is ‘perhaps’ resolved.

I really can’t say if it’s Sonos, or some other manufacturer, who needs to resolve the issue. The fact it affected other brands of soundbar just has me thinking that the ball may not be entirely in Sonos’ court to actually fix it. 

Enthusiast II
December 16, 2022

Hi @ProfessorFrag 

Thank you! I have found your related case number and passed it directly to an engineer. You should hear from them soon. 

Hi @Corry P ,

FYI, I have not yet been contacted by Sonos. I continue to be interested in providing replication data in devmode.

Enthusiast II
December 16, 2022

This is the link where I saw the Sonos Staff comment about the issue too…

 

Reading that reply only solidifies my decision not to buy Sonos products going forward. Anyone remember Cambridge Soundworks? 

Enthusiast II
December 16, 2022

Hi @ProfessorFrag 

Thank you! I have found your related case number and passed it directly to an engineer. You should hear from them soon. 

Hi @Corry P ,

FYI, I have not yet been contacted by Sonos. I continue to be interested in providing replication data in devmode.

Thank you for your efforts. You have far more patience and faith then I do.

Enthusiast II
December 16, 2022

I completely disagree with this statement. Simply because other manufacturers also have a defective product does not alleviate the responsibility Sonos has to its customer base and it’s reputed reputation as a premium quality sound system company.

While it is true, being a smaller company they do not have the resources that major manufacturers do when it comes to technical support or call centres. Being a smaller company, one would expect that when a large contingent of your customer base has the same defect with your product, the company would have a more hands on approach to a solution. One can argue this point all day.

My theory is derived from working for large Japanese corporation. Where deadlines for software and hardware forced releases of defective product. Deadlines caused by contracts with major retailers for shelf space.

Sonos does not have this issue. They have the time and freedom to address defects and errors. I’ve searched for this issue in other products. So far none have the same mitigating factors that this error has. 

As I’ve already stated, if this was an easy software fix, it would have been implemented. Granted at the time the Sonos Arc was introduced, eARC TVs were few and far between ,due to the limited number of models and the excessive cost of premium TVs released to the consumer market, obviously the Sonos engineers designed the Sonos while testing their units on the current eArc TVs at the time, and possibly never tested them with an Xbox Series X during development. Considering how old the Sonos Arc is, there has been more then enough opportunity to address the error.

When a company released a product that is advertised to be one of the best Dolby Atmos sound bars on the market, and then said product has a defect that prohibits the Dolby Atmos product to play Dolby Atmos. Do I really have to spell this out?

And if you’re saying that Sonos Reps have told you that “Oh this is a known issue and other companies have the same issue, here’s some links to other posts talking about how other companies have the same problem” I call nonsense. That does not sound like a PR statement or a statement any representative of a company would make. Unless they either have no idea what they’re talking about, or were trained to tell the customer nonsense to… ‘nuff said. 

Well (hopefully) you can see exactly what the Staff said, as I posted the link to the comment in the earlier post above.

I truly didn’t say anything about it alleviating the responsibility of any manufacturer, including Sonos, so not sure where you are coming from with that remark?

I was merely highlighting, other branded hardware had the same/similar issue and that the instances of the ‘popping’ that I’ve personally seen reported, seemed to be linked with playing MC LPCM ‘Atmos’ audio from devices such as XBox, Apple TV 4K etc. …and was suggesting to perhaps set that codec aside and use DD+ (Atmos) or Dolby TrueHD (Atmos) instead, at least until the matter is ‘perhaps’ resolved.

I really can’t say if it’s Sonos, or some other manufacturer, who needs to resolve the issue. The fact it affected other brands of soundbar just has me thinking that the ball may not be entirely in Sonos’ court to actually fix it. 

I understand your point. And I agree with and appreciate your statement regarding the MP LPCM ‘Atmos’ audio. However to the average consumer, this means nothing. You may not be able to say Sonos or other manufacturers  may or may not be responsible to actually fix it. But I will. This is all semantics at this point.

To the average person who spends an exorbitant amount of money to purchase a premium product this is unacceptable. And the response from Sonos Staff is unacceptable. 
 

I’ve dealt with this kind of issue in work and in other products. At this point. The only we can do is choose what we buy.  If there is a fix or the next generation does not have this issue. It will take a lot of research and convincing for me to try Sonos again much less ever recommending Sonos to anyone.