Salvaging Audio Help!!

[kginsbo]

Sent a guy out to video a gig for me. For whatever reason, he put it on manual audio for a bit and the levels were turned down just about all the way. When I put on headphones and raise the volume all the way I can hear some of the audio. Anyone aware of any methods to mining some of that audio?

In case it's useful, it was with a Canon GL2

[paglamon]

Separate the audio from the video.Then put the audio through some audio editor(like Audacity) to increase the volume and save the new audio.Finally remux.

[UncasMS]

you could also load the file into virtualdub, make sure to set VIDEO to direct stream (in order not to touch/re-encode it) and then use audio with full processing mode and increase the stream by finally saving the file again