Closing Cockpit door doesn't change volume of boarding music

[OELVA]

I've seen in the sound preview on youtube that closing the cockpit door should lower the volume of the boarding music.
This is independent wether I play track 1 (custom music) or any other default boarding music.
Also, not only music, but the cabin crew announcement aren't any lower in voice level if I'm in the cockpit or in the cabin.
Looks like it's dependent on the POV when the .wav is played. Automatic announcements are low volume (when I was in the cockpit at the time the .wav got startet), but when I'm back in the cabin and press play get back in the cockpit and close the door, it's not any lower.

[knollo]

Cockpit door will damping cabin sound in general. Announcment, cabine and music volume is adjustable via pa rotary and or int volume fader

[OELVA]

@knollo thanks a lot, works as intended!