Taken from a thread on another forum, I found a link to this:
http://www.432hz.org/
Basically, they say that tuning down music from 440 hz to 432 hz makes the sound more fuller, more dynamic etc.
There's a nice .wav sample you can download here: http://www.432hz.nl/Ogg/compilatie/compila..._Track%2001.wav (Right click > save as)
I've no idea what the guy in the audio is talking (since its not english), but I can only assume he is first playing the 440 hz sample, and then the 432 sample. And then he does it several times. I can really feel the effect of every 2nd sample over the 1st one (I guess the 2nd sample is the 432 Hz one). The dynamics and the fullness, the effect of the track gives a really better impression. The first sample sounds a bit "dull" compared to the second.
However, I'm suspicious that he did more then just downtune it to 432hz. It can't be such a simple trick, can it? I'd try downtuning myself however I've no installed apps like wavelab or soundforge at the moment, so I can't test this theory out. If anyone else can give it a shot, maybe upload it somewhere so I can take a listen.
Edit: Here's more samples, but I haven't checked them out yet: http://www.terugnaar432hz.org/pageID_5832471.html