expectingtofly wrote: 
> I meant to raise this a few days ago also, I was going to do a bit of
> investigation.   The new firmware has the same problems with the AAC
> streams on BBC Sounds.  There is kind of a micro stutter and warble when
> playing AAC streams on the Squeezebox Radio,  its as if there is some
> processing that is going on that is halting streaming.

I've been using this firmware, or a variant, for some little time now
and do not recognize the symptoms you describe. One of my Radios is
constantly playing BBC AAC streams, either from BBC Sounds or BBC
iPlayer, at 320k/48k.

Are you able to provide me with a stream that reliably reproduces the
issue ? Or a set of actions, e.g. fast forwarding, that will trigger it
?

I do know that the stream that is being played on the Radio is an AAC
stream provided by LMS. That is, I think, because the BBC stream URLs
are all https, so LMS must fetch them. Please correct me/advise LMS
settings that are needed if I am wrong.

I don't have Tidal, so can't test that.

On the "old firmware" Radio, are there any signs of ALSA underrun
messages in the Radio's log ? (/var/log/messages). These are the
specific errors that are pertinent:

Code:
--------------------
    
  Jan 27 16:26:45 squeezeplay: audio_thread_execute:862 underrun!!! (at least 
-2359940.244 ms long)
  Jan 27 16:34:56 squeezeplay: audio_thread_execute:1025 xrun 
(snd_pcm_mmap_commit) err=-32
  And sometimes this kernel message:
  Jan 27 16:34:56 kernel: [ 3387.946675] ssi1_irq SISR 120 SIER 180100 
fifo_errs=1
--------------------

My reason for asking is that I am wondering if you are observing the
"Bass amp problem" in a new guise.
https://forums.slimdevices.com/showthread.php?104141-Bass-amp-problem&p=981578&viewfull=1#post981578


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