Not just one multimedia format, but with ‘ffmpeg’ you can extract the audio track (s) of almost all popular multimedia container formats too!. It supports multiple operating system platforms, and if you use GNU/Linux, then applications such as VLC, MPLayer, OpenShot & Kdenlive (video editors) and even ‘Gstreamer’ (another multimedia framework) supports using ‘ffmpeg’ for playback (these are of course just a handful to mention).Īnyway, as an Ubuntu user, if you wanted extract the audio track of a multimedia file (without having to encode it) and okay with playing with the command-line a bit, then ‘ffmpeg’ can easily do that for you. vcodec copy -acodec copy -ss 01:07:07.241 -to 01:15:44.531 harissa-10.‘ffmpeg’ is a powerful multimedia framework (a set of tools for handling multimedia file) that is being used by hundreds (if not thousands) of audio & video applications (editors, encoders, players, streaming apps … you name it!).

I split into one video per song using, or:.

re-mux the exported audio mix with the video, with an audio delay of 0.1 seconds: ffmpeg -i harissa.mp4 -itsoffset 0.1 -i 4a -c:v copy -map 0:v:0 -map 1:a:0 4.

sync & mix extracted audio with audio from secondary recorder, using audacity (cf Sync-Locked Track Groups - Time Stretching - Audacity Development Manual and Syncing two tracks: methods, features and suggestions - Audacity Forum).

extract the audio with ffmpeg -i harissa.mp4 -vn -acodec copy, or in pcm/wave format (for audacity): ffmpeg -i harissa.mp4 ,.For reference, on video recordings of Chapelle des Lombards:

Ffmpeg map audio track