Contributor I

Beam Audio Cuts out over ARC

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Hi - experiencing audio switching between my ARC connected LG TV and my Beam. Beam cuts out, and TV speakers cut in for a few seconds every now and then. this has persisted across updates, changed cables, power cycling etc. I have a diagnostics dump 1001779540 which I took seconds after it happened last. Many thanks, Robert.

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Robert100Author

Contributor I

Hi Corry, that is the only thing I have not tried, as I don’t ever watch live TV and don’t have any other sources to test with.

Thanks,

Robert.

Corry P

Sonos Staff

Hi @Robert100

The part about not watching live TV I get - I don’t either. I find watching adverts weird now.

Do you have a laptop? - it might be a source that you have not considered to be a source.

Looking at the diagnostic, the issue is readily apparent, but all I can tell you about it is that it is regarding the feed from the TV - “Could not get input delay (RESTART)”. When the feed arrives at the Beam, enmeshed within it are instructions on how long to delay it by (usually 0). For some reason, your Beam is unable to determine a value. Whether this is due to the TV or the Firestick I am unable to determine. Tolerating adverts for an evening way be the only way to determine the source of the interruptions.

I highly recommend checking both the TV and the Firestick for any available software updates. Reseating the HDMI cable by swapping the ends around might fix the issue, but considering the error I see (which I don’t remember seeing ever before) I think it much more likely that a device is operating outside of specifications (and considering the number of Firesticks out there, it’s probably the TV).

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

Robert100Author

Contributor I

Hi Corry, actually, thats super helpful, as I have experienced very odd sync issues with the the FireTV, so that correlates. I have performed a factory reset, and updates on the stick, so I might just order another one and see if a more recent model performs better.

I do have many other sources of course in different rooms, I just don’t watch any of them for hours at a time, for the intermittent fault to appear. 😀

While I think of it, I may see if I can update the TV, as the ARC firmware may be involved.

Thanks again.

Y

yiyocx01

Lyricist I

Hi @Robert100

Did you fix the issue? Because I have the same problem.

M

mickyyat2001

Lyricist I

Hi @Robert100

Did you fix the issue? Because I have the same problem.

several factors can contribute to the problem. Here are some potential causes and solutions:

HDMI-CEC (Consumer Electronics Control) is a feature that allows devices connected via HDMI to communicate and control each other. In some cases, HDMI-CEC conflicts can cause audio switching issues. Try disabling HDMI-CEC on both the LG TV and the Sonos Beam.

Ensure the LG TV's audio output is set to "External Speaker (Optical/HDMI ARC)" and not "TV Speaker." Check the TV's audio settings menu to confirm this.

While a standard HDMI cable should suffice for audio transmission, using a high-quality HDMI cable specifically designed for ARC can sometimes resolve audio switching issues.

Ensure both the LG TV and Sonos Beam have the latest firmware updates installed. Outdated firmware can lead to compatibility issues.

If none of the above steps resolve the issue, consider performing a factory reset on both the LG TV and the Sonos Beam. This should eliminate any software glitches or configuration issues.

Moderator edit: This response is likely AI-generated.

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