I’m experiencing some pops when playing music over volumio 1.41 on my Raspberry B+ model.
I first bought an AK4399 based DAC :
After I figured out that the AK4399 needs a MCKL (RPI doesn’t get one), I bought this USB to I2S interface:
My PI get the music from my NAS over the LAN.
Everything works fine except some pops at regular intervals.
I’ve noticed that pops show up when some additional processes are ran (using “top” command through SSH). However the CPU idle is still 75% when pops appear, instead of 90% and more most of the time…
It works fine with a PC using foobar and Xmos driver!
Is my problem related to the Raspberry performance limitation?
Can I go through this problem by optimizing the kernel or volumio parameters?
Thanks for your help!
Below is a picture of my setup:
RPIB+ —> USB to I2S board —> AKM4399 DAC