Adding Multiple Audio tracks to single video using FFMPEG: So Adding multiple audio tracks will help us to reduce storage size About FFMPEG:įFmpeg is a free and open-source project consisting of powerful audio and video converter software suite of libraries and programs for handling video, audio, and other multimedia files and streams. Your audience might be from various demographics and you need to plan the audio tracks accordingly so that everyone would understand the video better.Īlso let us say, in case your family/friends are comfortable or only understand their particular language, then we need to store individual video for every single audio file this will cost your storage size i.e language count * video storage (4 * 1.5GB = 6GB). In this fast-paced world, we must agree the fact most of us spending money like buying a tool or software even for small things that we can do it by ourselves just by writing a one-line command.īefore digging deeper into the details, let’s just give a thought about why we should go for multiple audio tracks and how does this help? Why go for multiple audio tracks?Ĭonsider this, you have created a video and planning to run it for a presentation or upload it online for everyone to watch. This content is by Nick Williams and originally appeared here.In this article, I’m going to help you learn how to add multiple audio tracks to a single video file using FFmpeg tool. That’s it! the wav files will be put in the same folder as the mp4s. Type the following code into terminal: for f in *.mp4 do ffmpeg -i “$f” “$wav” doneĤ. Open terminal and navigate to the folder (just type ‘cd’ without quotes and drag the folder onto the terminal window and then hit enter).ģ. Have a folder with all your mp4s in it.Ģ. No commentary in the video, so I’ll briefly explain here:ġ.

Here is a video showing how to do this: youtu.be/m8i7RWKrnmk This is very easy with ffmpeg and the best thing about it is we can easily do it for ALL the mp4 files in a given folder. In addition to concatenating and converting our original video files, we also need to extract the audio files. Nick works in Indonesia researching Kula, an endangered non-Austronesian language spoken in the eastern highlands of Alor. Today on the ELAR blog, we are sharing another post from ELDP grantee, Nick Williams on extracting.

Ffmpeg extract audio track from mp4