White noise from television

[NitSuA]

Hi all,

I have my XBian (latest) connected to my TV by HDMI (HQ) cable.

Whenever I am in the menu of kodi, or playing a movie, I hear a soft white noise.
If I set the "audio keep alive" to none, the white noise is dissapeared, but I still do hear the clicking sound of kodi (menu sounds).

It this some issue that can be fixed? Of is this related to kodi?

Kind regards,