Sound of the Sun

The National Science Foundation (NSF) has posted an audio file of the sound of the sun. The SOHO (Solar and Heliospheric Observatory) spacecraft detected changing light waves emitted by the sun using a dopplergraph. The spacecraft was created jointly by ESA and NASA. The sound file was created by the SOHO/MDI (Michelson Doppler Imager) Consortium.

Find an explanation of how the sound was determined and hear it for your self at the NSF website: http://www.nsf.gov/discoveries/disc_videos.jsp?cntn_id=117729&media_id=68449&org=NSF

After listening to it with the Windows Media Player with the visualization set for scope, it sounds like a tone from a tone generator. The waveforms look very clean.