Free software to analyse CCTV footage time-line for sound peaks as a graph?

[UOcUK Poopscoop]

Need to look through hours of video footage to find one loud noise which coincides with a neighbours shed being broken into.
The shed was left looking totally ok after break in so can't just scan footage looking for a change in a door being suddenly open etc.

Need software that can show a few hours of video as a time-line with a graph showing sudden peaks in the audio volume to narrow the times down I bed to look at.

Hope that makes sense?

Any info appreciated.

 

[Steampunk]

Most video editing software can do that. I know Vegas can, it's currently sold by Magix, but I don't know what limitations the trial version has. If you load the video, you'll be able to see thumbnails and below the audio as a wave display