AudioVideoEditing

Aegisub

A free, cross-platform open source tool for creating and modifying subtitles

Sken

Ciano

A multimedia file converter

Sken

EasyTAG

Edit audio file metadata

Sken

Gaupol

Editor for text-based subtitles

Sken

Gnome Subtitles

Video subtitling for the GNOME desktop

Sken

Kdenlive

Video Editor

Sken

Kid3

Edit audio file metadata

Sken

Kid3

Edit audio file metadata

Sken

MKVToolNix

Matroska files creator and tools

Sken

MediaInfo

Convenient unified display of the most relevant technical and tag data for video and audio files

Sken

MuseScore

Create, playback, and print sheet music for free

Sken

MusicBrainz Picard

MusicBrainz's music tagger

Sken

Pitivi

Create and edit your own movies

Sken

Shotcut

Video editor

Sken

Sound Converter

Converts audio files into other formats

Sken

Subtitle Editor

GTK+3 tool to edit subtitles for GNU/Linux/*BSD

Sken

Transmageddon Media Transcoder

Easy to use audio and video transcoding application

Sken

VidCutter

Media Cutter + Joiner

Sken