Mp4Gain is the new application that normalizes the audio, not only audio files like mp3, Flaf, Ogg, AAC, AC3, M4A, etc.. but also normalizes the audio from the following video formats:
-FLV
-MP4
-AVI
-MPEG
-MPG
-WMV
-3GP
FlvGain, Mp4Gain, AviGain, MpegGain, wmvGain, WavGain, 3gpGain, FlacGain, OggGain…
You may normalize the audio from your video and fginal have the video in the same format, but with the standard audio.
Mp4Gain soon be able to download from this website.
