I have an Hifiberry DAC+ mounted on my Pi3.
The problem is that it produces a very noticeable poping sound when it starts playing audio from ANY program using the ALSA API (RetroArch, omxplayer, Scummvm...)
I have came to the conclussion that it only happens at start, so it may be related to power-saving features (the DAC is muted if no audio is being sent to it I guess). Is there a way to disable that so no popping is hear?
There should be no popping after the system initializes ALSA...
Some other drivers allow this, like the Intel HDA: the intel hda kernel module allows these parameters:
options snd_hda_intel power_save=0 power_save_controller=N
Is there something similar for the hifiberry kernel modules??