It looks like the problem was not in PulseAudio but in NanoPi NEO Plus2 itself. The bluetooth is connected via UART(hci_uart driver) and firmware for ap6212a chip is uploaded on system startup via brcm_patchram_plus utility (in stock UbuntuCore it's called from /etc/init.d/ brcm_patchram_plus.sh or something like this). According to the thread on Armbian forum( https://forum.armbian.com/index.php?/topic/4726-ap6212a-bluetooth-audio-streaming-timeouts-in-audio-bus/) the default baudrate is set quite low. I've modified brcm_patchram_plus call to include --baudrate 1500000 and after the reboot the problem with choppy sound was mostly solved. The downside is that now bluetooth connection is not very stable and there are occasional bluez/pulseaudio restarts (one per 2-3 hours) but there are no more skips and I'm happy for now =) Thanks again and sorry for the noise! -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20170911/3e166351/attachment-0001.html>
