Kodi is sometimes muted

  • Sometimes - I'm not sure if it is after a fresh boot or also when I come back to my TV after some time - Kodi is muted (red icon in to top right corner). I don't know how I can switch the volume on again with my TV remote control (Samsung TV). I have to use the Kodi app, then start playing some music file and then there is an icon to unmute.

    So I would like to know what puts Kodi in that muted condition and if there's a way to prevent that. And can I somehow unmute it via the tv remote?