Well I have a Canon powershot A530 and when ever I take videos' I get this swooshing sound. Its a repeating sound, almost if some one was sweeping the street with one of those big brooms, thats the only way i can descride it. I am wondering what it is and if i could fix it.

Here is a video I just took of my neighbors trans am, you can hear the sound in the background.

http://s2.photobucket.com/albums/y25...t=MVI_0002.flv
Thanks in advance