When starting a song the first time after boot, or after a couple of minutes after a song is ended a short high frequency beep can be heard. With consecutive songs I don't hear a beep.
I am using DAC2 Pro + DSP
Rpi 3B Rev 1.2
HifiBerryOS version: 20220228
Example: HifiBerry Dac2 Pro DSP 20220408.flac
https://drive.google.com/drive/folders/1USebR76siftIUIzjCfANe2CsDyEiCMx6?usp=sharing
Quick iPhone recording: first you hear the mouseclick than the song starts and you hear the high frequency beep.
Can anyone help me out?