pavucontrol software package provides PulseAudio Volume Control, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install pavucontrol
pavucontrol is installed in your system.
Make ensure the pavucontrol package were installed using the commands given below,
$ sudo dpkg-query -l | grep pavucontrol *
You will get with pavucontrol package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Sound |
| Package | pavucontrol |
| Version | 2.0-2 |
| Description | PulseAudio Volume Control |
| Sub Section | Sound |