[PROBLEM] Airplay stuttering since moOde 9

[Hendrik42]

    I also had trouble with apple classical studdering. Today I changed a setting in the account section.

I am listening for more than an hour and the stuttering disappeared. See photo (sorry the text on the photo is in dutch, but if you open the account setting you will find the corresponding items. To me it looked more an apple music problem.

[Tim Curtis]

What was the specific setting?

[Hendrik42]

@Tim Curtis
Hi Tim,
I will try to translate in English,
There is a setting called Search friends

And right under that
Allow ‘finding on Apple account’
I put both off.
Because I dont like the initiatives from apple on friends and contacts.

Regards
Hendrik

[cramcram]

I wanted to give a quick update on the testing I did related to this issue:

• First, I swapped the SD card to rule out a faulty card as the source of the problem - the issue persisted.
  
• Then, I downgraded from a Raspberry Pi 3B+ to a Raspberry Pi 3B - the issue persisted.
  
• Finally, I upgraded to a Raspberry Pi 4 that I still had lying around - voilà, the issue is gone, and Airplay works flawlessly.
  

So, it seems the problem is related to the Raspberry Pi 3B and 3B+ models. For each of the steps above, I performed a fresh installation of Moode 9.2.0. The issue, at least in my setup, is reproducible.

[Tim Curtis]

Shairport-sync doesn't know about the Pi model so whatever might be causing the issue is prolly somewhere down in Linux or PiOS.

Troubleshooting would involve creating a generic PiOS Lite build with just shairport-sync and then providing a repro to the shairport-sync repo first to get an opinion on what might be happening and then most likely next to Pi Linux devs. Maybe an interested dev will take on the challenge.