This one could be a machine or perhaps sound reflected from a distant factory, but the fact that, despite its softness, the witness claims that it hurts his ears is unusual.
Story Source:
http://www.youtube.com/watch?v=kzNcmeMlzXE This one could be a machine or perhaps sound reflected from a distant factory, but the fact that, despite its softness, the witness claims that it hurts his ears is unusual.