The more I know about the sun, the less I want to live there.
This really sounds like a storm!
During the flare, New Mexico amateur astronomer Thomas Ashcraft recorded a series of radio bursts at 21 and 28 MHz:
http://spaceweather.com/images2012/10mar12/m8.mp3
The roaring sounds you just heard are caused by shock waves plowing through the sun's atmosphere in the aftermath of the explosion. "There is incredible complexity in the waveforms," notes Ashcraft. "This is a recording of one of the most turbulent events in all of Nature!"
Jim K9TF/WA9YSD