Ffmpeg is a free tool that you can use to manipulate video, record from the screen, convert file formats etc. We have many posts about this tool, but today we want to take a look at another feature: how to increase the volume of a file audio, but also how to increase the volume of the audio of a video file. This could be useful, like it has been for me, if the volume of your mic is not so loud.
If you need to increase the volume of an audio file or the audio inside a video, you can use ffmpeg with this command
ffmpeg -i output5.mp4 -filter:a "volume=6" output5_volume_alto.mp4
