plasma-widget-veromix software package provides Mixer for the PulseAudio sound server (Plasma), 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 plasma-widget-veromix
plasma-widget-veromix is installed in your system.
Make ensure the plasma-widget-veromix package were installed using the commands given below,
$ sudo dpkg-query -l | grep plasma-widget-veromix *
You will get with plasma-widget-veromix package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | KDE |
| Package | plasma-widget-veromix |
| Version | 0.18.3-1 |
| Description | Mixer for the PulseAudio sound server (Plasma) |
| Sub Section | KDE |