AudioVideoEditing

Aegisub

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

Vaata

Ciano

A multimedia file converter

Vaata

EasyTAG

Edit audio file metadata

Vaata

Gaupol

Editor for text-based subtitles

Vaata

Gnome Subtitles

Video subtitling for the GNOME desktop

Vaata

Kdenlive

Video Editor

Vaata

Kid3

Edit audio file metadata

Vaata

Kid3

Edit audio file metadata

Vaata

MKVToolNix

Matroska files creator and tools

Vaata

MediaInfo

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

Vaata

MuseScore

Create, playback, and print sheet music for free

Vaata

MusicBrainz Picard

MusicBrainz's music tagger

Vaata

Pitivi

Create and edit your own movies

Vaata

Shotcut

Video editor

Vaata

Sound Converter

Converts audio files into other formats

Vaata

Subtitle Editor

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

Vaata

Transmageddon Media Transcoder

Easy to use audio and video transcoding application

Vaata

VidCutter

Media Cutter + Joiner

Vaata