libcanberra-gstreamer software package provides GStreamer backend for libcanberra, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libcanberra-gstreamer
libcanberra-gstreamer is installed in your system.
Make ensure the libcanberra-gstreamer package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcanberra-gstreamer *
You will get with libcanberra-gstreamer package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Libraries |
| Package | libcanberra-gstreamer |
| Version | 0.28-3ubuntu3 |
| Description | GStreamer backend for libcanberra |
| Sub Section | libs |