Grouped Roon ready devices get out of sync with other

Core Machine (Operating system/System info/Roon build number)

Mac Mini 2012
OS is 10.14.6
250 Gb SSD
Roon Server 1.7 Build 511

Music files on synology NAS presented as a mapped network drive to the macbook mini (ethernet connection)

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

Wired network using a couple of D-link switches for everything but control points

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

Naim ND5-XS2 into Chord Qutest by coaxial
Rasberry Pi 4 runing RoPieee (XL, version 413) into Chord Hugo by USB

Description Of Issue
The two audio devices above are grouped into one zone. Although they are usually (but not always) in sync when I start playing to that zone, they often get out of sync during playback with the Naim being ahead of the Hugo. Pausing and then restarting playback always brings them back into sync,for a while at least. I generally just play FLACs from a NAS but it also happens with Tidal

I think I can exclude the Chords. First, it still happens if I play directly from the Naim bypassing the Qutest. Second, it doesn’t happen if I play to a Chromecast group containing the Hugo and the Naim.

Are there I any settings I can tweak as the first thing to try ?

My naim Atom and ropieee won’t synch properly either.

Hello @stevet,

Is there any change in behavior if you add a slight resync delay to this zone?

Resync Delay

This setting is primarily used when an S/PDIF, AES, or I2S connection is involved. Oftentimes, a DAC will take a little bit of time to lock onto a new audio signal–sometimes as long as a few seconds.

This setting causes Roon to play a configurable duration of silence whenever it begins a new stream. Like the last setting, this one is a problem solver. If you find that the beginnings of songs are being cut off, or you’re getting a lot of clicks and pops while your DAC locks on to an S/PDIF signal at the start of playback, try increasing this setting. 500ms is a good starting point. If that doesn’t work, try gradually increasing it from there.

We default this to a very small value because it produces delays in Roon’s user experience. Consider that when setting it up–unless you have an uncommonly slow DAC, settings longer than 1-2 seconds are probably not necessary.

Hi, I’ll give it a go next weekend. Thanks

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I’ve added 500ms delay to both. I’ve also changed audio volume from ‘Device’ to ‘Fixed’ since that’s more appropriate for my setup. Don’t recall fidlling with that so guess ‘Device’ is the default. Anyhow, I used it a lot on Saturday and the sound kept in sync throughout so hopefully that’s sorted it. Cheers

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Hi @stevet,

Happy to hear that re-sync delay has helped! If you have any further issues just let us know and we can take a look!

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