Referenced from Guy Kawasaki’s blog.
I personally spend significant amount of time on my Ipod and my E3C headphones. Naturally, it’s been quite disconcerting to see increasing anecdotal evidence of earbuds induced hearing loss. Fortunately, it seems that an industrious graduate student has come up with some concrete numbers we can use:
“Sound Output Levels of the iPod and Other MP3 Players: Is There Potential Risk to Hearing?”
Cory D.F. Portnuff
Au.D., Ph.D. Candidate
Speech, Language and Hearing Sciences Dept
University of ColoradoBrian J. Fligor, Sc.D.
Director of Diagnostic Audiology, Children’s Hospital Boston
Instructor in Otology and Laryngology, Harvard Medical School
