Mead C. Killion, Ph.D., Sc.D.

Mead Killion is the founder and chief technology officer of Etymotic Research, Inc. Killion helped design several generations of hearing aid microphones, earphones and integrated circuit amplifiers. He has 67 U.S. patents. He has a long-standing interest in sound quality, particularly as experienced by the hearing aid user and by those listening to music through earphones. He presently is developing electronic ear-protection for use by deployed soldiers who cannot compromise situational awareness.


AB Mathematics, Wabash College, 1961
MS Mathematics, Illinois Institute of Technology, 1970
PhD Audiology, Northwestern University, 1979
ScD (Honorary Doctor of Science), Wabash College, May 18, 1997

Recent Publications

Killion MC (2009): "What Special Hearing Aid Properties Do Performing Musicians Require?" Hear Rev 16(2), 20-31.

Killion MC and Mueller HG (2010): "Twenty years later: A NEW Count-The-Dots Method" Hear J 63(1), 10-17.

Awards and Honors

February 24, 2010 : Safe-in-Sound Excellence in Hearing Loss Prevention Award for Innovation in Hearing Loss Prevention in the Manufacturing Sector – Presented by NIOSH and NHCA

March 5, 2010 : American Auditory Society Lifetime Achievement Award

Recent Grants and Funding

Second Generation Companion Mics System, SBIR grant pending


Advanced Topics in Amplification

Mead C. Killion, Ph.D., Sc.D.

President and Chief Technology Officer, Etymotic Research, Inc.; Adjunct Professor


Communication Sciences and Disorders


Etymotic Research, Inc.
61 Martin Lane
Elk Grove Village, IL 60007



Graduate Programs:

Doctor of Audiology