Hello Linux Geeksters. As you may know, MKV Extractor Qt is an open-source graphical MKV software written in Python 3 and Qt4, used to extract tracks from Matroska (MKV) files and to convert DTS audio to AC3, a file usable on Freebox v5.

The latest version available is MKV Extractor Qt 5.1.4, which has been released a while ago, which got czech translations.
In this article I will show you how to install MKV Extractor Qt 5.1.4 on Ubuntu 14.04 Trusty Tahr, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3 Freya, Peppermint Five, Deepin 2014, LXLE 14.04, Linux Lite 2.0 and other Ubuntu 14.04 derivative systems.
Because it is available via PPA, installing MKV Extractor Qt 5.1.4 on Ubuntu 14.04 and derivative systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the mkv-extractor-qt package. Like this:
$ sudo apt-add-repository ppa:hizo/mkv-extractor-gui
$ sudo apt-get update
$ sudo apt-get install mkv-extractor-qt
Optional, to remove mkv-extractor-qt, do:
$ sudo apt-get remove mkv-extractor-qt