[sound-nua] gnome-control-center unusual with many Sound-Application running parallel

[Grek-336]

lsb_release -rd
Description: Ubuntu 12.04 LTS
Release: 12.04

apt-cache policy gnome-control-center
gnome-control-center:
  Installiert: 1:3.4.2-0ubuntu0.3
  Kandidat: 1:3.4.2-0ubuntu0.3
  Versionstabelle:
 *** 1:3.4.2-0ubuntu0.3 0
        500 http://mirror.informatik.uni-mannheim.de/pub/linux/distributions/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:3.4.1-0ubuntu1 0
        500 http://mirror.informatik.uni-mannheim.de/pub/linux/distributions/ubuntu/ precise/main amd64 Packages

The gnome-control-center sound-nua is unusual when many applications running that using sound.

Look at the screen shots.