Roon audio panning issue with HomePods stereo pair attached to Apple TV (ref#9T76PY)

What’s happening?

· Something else

How can we help?

· None of the above

Other options

· Other

Describe the issue

Hi. I have a pair of HomePods set up as a stereo pair attached to the Apple TV. Roon only sees the Apple TV and not the stereo pair, which is fine, but when I play any music through them it pans from left to right across the stereo field. Doesn’t do it on the downstairs Apple TV with Pulse M’s or in headphones. Any help is appreciated 🙏

Describe your network setup

Ethernet connection on all devices. Linksys Velop router and 2 mesh nodes

Hey @Cpy,

What happens if you add the Homepods to your Apple Home app prior to using them in Roon? Here’s more info on this:

Is there a difference in network connection between the devices?

A few additional steps to try:

  • Go to Settings in Roon, then select the Audio tab.
  • Ensure that the Apple TV is enabled as an audio device.
  • Double-check the configuration and make sure it’s set up to output stereo sound.

Verify HomePod Pairing

  • Open the Home app on your iOS device.

  • Confirm that your HomePods are set up as a stereo pair. Sometimes, if the pairing is disrupted, it can cause audio issues.

  • Try playing music directly from your iOS device to the HomePods using AirPlay, bypassing the Apple TV. This can help determine if the issue is with the Apple TV or the HomePod setup.

And lastly, ensure that both your Apple TV and HomePods have the latest firmware updates. Outdated software can sometimes cause compatibility issues. :+1:

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Thanks for the response and all is in order.
No difference in network
Set for stereo
Already in home app but roon sees them as just Apple TV not stereo HomePods and the home app has them separated. See pic

If I use Apple Music on Apple TV - no problem.

Use Tidal on Apple TV no problem.

Use qobiz directly to Apple TV via airplay no problem.
Roon - sometimes the stereo image is panning.

It seems to be when a new track is selected and then only sometimes. Very odd but I’m open to it being user error :joy:

All on same software

Thanks again :pray:

@benjamin any more ideas. I’ve just bought a years sub so I am hoping there’s a solution to this issue.

Thanks in advance :pray:

Also tried HomePods just as stereo pair disconnected from Apple TV……still the same :pensive:

Just tried with airplay direct from Qobuz - no problems. Apple Music - no problems. Tidal - no problems

Roon - still phasing from left to right and vice versa. Sounds as if volume is down on the left channel but the stereo phasing or panning is prominent. Also doesn’t happen when I airplay to pulse m’s as well as the powernode.

Hey @Cpy,

Thanks so much for the additional information and testing!

My apologies if this has been glazed over, but when you have your Apple TV enabled in Roon (with playback to the homepods) have you tested out enabling the airplay compatibility toggle? You can find it in the zone>device settings.

Let me know if this makes any difference, and our team will enable a fresh diagnostic report to review things further - feel free to leave a more specific date, time, and name of track the next time you reproduce the issue.

Thank you! :raised_hands:

Hi @benjamin
I have just toggled that on and it’s was out of sync for the first 20 secs. Then the panning started to happen. Seemed to fix itself then started again.

08.53am and 08.56 (31.10.24) for time stamps and see screenshots for track info.


I thought it may have something to do with HDMI arc so I switched it off and the timing was out at the start again and then panning ensued at 09.00am - 09.01am

Hope this helps :crossed_fingers::pray:

Hi @Cpy,

How are the HomePods, Apple TV, and the machine hosting RoonServer all connecting to the internet?

Please list out the specific topology, including the type of connection at each endpoint/controller (Wifi vs ethernet) and the node or router to which it is connected.

Reviewing this case, it sounds suspiciously like multicast traffic isn’t routing correctly between the HomePod pair and the RoonServer machine. Verify that multicast and IGMP snooping are enabled in any router administration pages. For due diligence, hardwire the RoonServer machine via ethernet for testing, along with any ethernet-capable endpoints.

If you have an updated timestamp of a failure event, please let us know and we’ll examine diagnostics precisely. However, our goal now is to determine why the HomePods aren’t visible as a grouped AirPlay Zone in Roon.

Hi @connor
Router - ASUS BQ16 (just upgraded from Linksys Velop (both have same issue)

TP Link Network switches unmanaged

All Ethernet

Multicast and IGMP are enabled (see pic)

With regards to HomePods not showing as grouped airplay. That’s been like that since implementation. I did ask ages ago about that but never got to the bottom of it.

I will send a timestamp shortly

All the best :pray:

Hi @connor

Timestamp for you to check. 07.15am roughly.

Thanks

I think having the stereo pair not showing up when used as the audio out of an Apple TV is the expected behavior. I have 2 Apple TVs, each with a stereo pair and none of them show up.

I would hope that Roon support knows this :sweat_smile: At least I’ve been told by at least one Roon support this was expected behavior.

About the panning issue, no idea…

When you use a stereo pair of HomePods (single one too) paired with an Apple TV you will not get playback from Roon if the Apple TV is the Airplay endpoint.

When the HomePods are paired with the Apple TV they will not show up in Roon.

Apple TV uses Airplay to pair the HomePods and this remains an active connection.

It is bizarre you get some playback through the HomePods, but as you’re experienced issues this may be to do with Roon’s implementation of AirPlay 2. This isn’t a bug though. Getting any playback in this situation is the bug.

My only solution using Roon when using a Apple TV paired with HomePods was by using a second (primary) Apple TV as the endpoint and device for viewing media etc, with the paired ATV + HPs connected to the eARC HDMI port and set for TV Return Audio on the paired ATV.

An awkward setup.

Alternatively, I then also connected my Roon Server which supported HDMI as an output and connected this to the TV. Saves buying a second ATV. If using Rock you don’t get a UI, but using Windows 10/11 I did.

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Thank you @Menzies

Yes, that would not be an ideal set up and as you say it’s awkward.

Hopefully Roon can sort this out

:pray:

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I think this is a limitation of having a ATV paired with HomePods and using Roon, more than a Roon fault.

Like I say, I had the say dramas before they introduced AirPlay 2.

Indeed

If you use Roon music from Roon via AirPlay to the AppleTV (with paired stereo HomePods), you do get music out of the speakers.

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Is this since Roon introduced Airplay 2?

I only tried with Airplay (1) with Roon and never got audio from the HomePods.

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Indeed. Stereo pairs require Airplay2 is my understanding (or at least within Roon)

I had my HomePod mini pair as a roon endpoint (while being used as speakers for appletv) and it was working fine until I updated the HomePods recently. Now Roon thinks it is playing something but nothing comes out. I am almost certain that this stopped working after the recent HomePod and appleTV update.

Good to know. Must have been since they introduced AP2.

Like I say, I never got audio from the HPs when paired to a ATV, using the ATV as the endpoint.

Something similar to what you described happened a while ago to me. It turned out one of the HomePods failed to update.

Double check in the home app.

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Thanks @Menzies . I’m getting all sorts of grief with them now in the home app (both were showing as 18.1 but there’s obviously issues there). Currently trying to reset /re-pair etc. Joy.

Once I’ve got this sorted hopefully Roon will work on them again.
Thanks for pointing me in the right direction.

1 Like