Comments

musicvid10 wrote on 6/19/2012, 11:28 AM
Try some compression at the track or event level, or add a volume envelope and adjust the gains manually.
DDDyson wrote on 6/23/2012, 1:02 PM
Is the one subject's voice clearly separate from the rest in time (each has their own turn to speak and they do not speak over each other)?

If that's the case, you can isolate the quiet person's speech by Splitting the audio clips around it, then Normalize that bit of the sound (Media Properties flag: Normalize). This maximizes the volume of the sound in the clip.

And like MusicVid said, applying compression to the whole audio brings down the volume of the loud parts, then increases the volume of the whole track overall, so the quiet bit becomes louder.
richard-amirault wrote on 6/23/2012, 1:52 PM
There may be another way to do this. The software LEVELATOR is designed to do just that. (even out voices that have different levels) However it does not work on video files.

http://www.conversationsnetwork.org/levelator

You would need to extract the soundtrack as a wav file. Process it in LEVELATOR. Then import it back to the timeline. Then sync it. Of course you would need to then mute the original soundtrack.