Mumble 1.2 on Ubuntu 9.10 – Karmic Koala

Here’s How:

sudo sh -c "\
  echo 'deb http://ppa.launchpad.net/slicer/ppa/ubuntu karmic main' \
  >> /etc/apt/sources.list.d/mumble.list"

sudo apt-key adv \
  --keyserver keyserver.ubuntu.com \
  --recv-keys 165B2836

sudo aptitude update

sudo aptitude install mumble