Originally posted by: MSCoder610
If you use VirtualDub, you can extract the sound as a WAV file (uncompressed PCM), then edit that/ raise the volume however you'd like, then put it back together. You can choose the encoding mode for video and audio separately, so you can choose "Direct Stream Copy" for the video, but "Full Processing Mode" for the audio, then choose your edited WAV file as the source, choose any audio compression you want for the new file, etc etc.