Strange sound from speakers

Hello, I have got RPi3 with volumio on it connected to soekris. When I play music from the Spotify I can hear before it starts playing and at the beggiing of the song strange sounds from the speakers. I thinks it is buffering/downloading song and this sound occures. It is a little irritaing when each song starts like that. When i move in volumio menu it also happens. Can I do anything with that ?

Sounds very odd, I had an issue with the last second of a song cutting out, dropped the buffer to its lowest setting and all was good.
Maybe try this?

Here you can see how does it look like.!AvrrJ7GKA4Tcc1OcwFq1fbjR954

anybody ? :unamused: