I don't know the correct term for the thing I am trying to do so let me describe it.

I have 2 videos from 2 different sources that I am trying to produce into a DVD. Everything is fine except that one video clip is a lot louder than the other one!

I am using Nero Vision 4 to create the DVD. And yes, there is an option for me to adjust the audio (of each video file I import into this program) within the programme itself but I would rather not touch this because I would have to rely on my ears and that is simply too unreliable, especially if I decide to add even more videos to the project.

I have already a software that will allow me to extract the audio (returning .ac3 files) from the video files (.mp4) and I am now actively looking for a software that will re-encode both audio files so they playback at same or similar volume levels. Anyone with a suggestion? Has to be open source software only.

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