Ardour - Digital Audio Workstation

Ardour is a hard disk recorder and digital audio workstation application. It supports unlimited audio tracks and buses. Its features include Non-destructive, non-linear editing with unlimited undo, and anything-to-anywhere signal routing. It supports Standard file formats BWF, WAV, WAV64, AIFF, CAF and Windows VST plugins. Ardour can be used as an audio mastering environment. Its integration with JACK makes it possible to use mastering tools such as JAMin to process the audio data.

It provides support to record, edit, mix and master audio and MIDI projects. Import a single video and optionally extract the soundtrack from it. Display a frame-by-frame (thumbnail) timeline of the video.