The audio on the film caught me off guard.
I was expecting something more of a solid humming sound Power Nodes generate.
But this, I seem to have noticed there were two variations of the 'sound'.
The first variation can be heard around the 2:40Min - 5Min portion of the video.
Firstly, I noticed there was a central sound that was reverberating in itself.
Think of a gong, except your not slamming the hammer on it.
Your gently tapping it in a rapid fashion, creating a light harmonious but consistent sound. Instead of a loud bang.
Now the second sound at 6:45min, seemed to have something else mixed in.
It had the same qualities as the first, however this was there in between the sections of the first sound.
To draw it out it would be like this for Variation 1:
Noise Block 1 (First) -> Noise Block 2 (Second) -> Back to First
For the second variation:
Noise Block 1 (First) -> Noise Block 2 (Second) -> Back to First
Third Sound, no stop and start.
EDIT:
Whatever is making this noise... its in the 5 - 6Khz range.
EDIT2:
Here's a spectrum of the waveform showing where this consistent sound is at.
Couldn't upload the image at ATS due to size.
Top is highlighted with a green box.
Bottom is untouched.
Link: Waveform Image Spectrum
[edit on 3-10-2008 by Xabora]