ffmpeg

Sometimes recorded video, screecasts etc have a low volume, if you want to increase the volume without getting into too much complication, you can simply use ffmpeg for the same.

The command:

ffmpeg -i foo.mp4  -filter:a  "volume=5.0"  foo-high-volumet.mp4

Here:

ffmpeg is the command

-i assigns input file i.e. foo.mp4

Today almost everyone need to cut or edit a video some other time. You can use ffmpeg for the same. 

It is an interesting command line utility and can do a lot of stuff.

Here we will see how we can simply cut a part of a video.

What we have:   foo,mp4   our video file of 10 minutes length.