bpa wrote: 
> LMS sends data to player when player says data has dropped below a
> certain level - so for a data stream which has same characteristics -
> timing would be constant but higher data rate where data is "consumed"
> faster then timing will change.  To check if it is related to playing
> content try repeatedly playing a file with greatly increased data rate
> (e.g. 96Khz vs 44.1khz or Flac vs MP3/AAC).  37 secs could be a
> reasonable level to request more data as buffer can hold 2-3 minutes of
> audio - but best to check by to see if timing varies when playing a
> variety of files each on repeat.
> IIRC player timing sync is quite frequent (e.g. every few secs) as part
> of status messages.  You can enable LMS logging for sync (player.sync)
> or slimproto (network.protocol.slimproto) to check on LMS/player
> message.

Thank you.  Yes, I was going to investigate the transcoding options. 
Given how long the Booms continued playing after various LMS shutdowns
yesterday, I suspect they're being sent compressed data, so that's
certainly something to investigate.  And I think you're right about the
player sync data - when I disabled the 'maintain sync while playing'
option they went noticeably out of sync much faster than every 37
seconds - even after a few seconds I could hear the difference.

And given that that option made no difference to the glitches, the 37
seconds seems more likely to be related to buffer refills.  But I can't
see an obvious reason why they'd suddenly become an issue with the new
mesh wifi?  If the player signals that it needs a refill, is that
message being blocked or delayed somehow?  And why would this only
affect playback when two players are synced?

As well as trying the RPi wired, I'm also thinking I should completely
remove and reinstall the wireless parts of pCP.  I gave my new mesh
network the same name as my old wifi network, so maybe pCP is
remembering something about the old network that isn't suitable for the
new one.  Perhaps I should just give the new network a different name.


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