Founder and hearing
scientist Christine Rankovic PhD is a well-known articulation index (AI) expert. She advocates use of
AI metrics for customizing settings of personal audio devices, particularly hearing aids. Rankovic earned
degrees in the speech and hearing sciences from University of Wisconsin-Madison (BS), University of Washington (MS), University
of Minnesota (PhD), with postdoctoral work at the Research Laboratory of Electronics at the Massachusetts Institute of Technology,
was Principal Investigator for a five-year research project entitled "Adaptive Frequency Shaping for Hearing Aids,"
funded by the National Institutes of Health and conducted at Northeastern University, Boston MA. In 1994 she wrote the
first software implementation of the Fletcher and Galt (1950) AI calculation. In addition to designing and coding the
Interactive AITM software product, she has conducted many evaluations of the AI's
predictive accuracy, and developed extensions to accommodate hearing impairment and binaural listening. She is a member
of the Acoustical Society of America, the Audio Engineering Society, and held the Certificate of Clinical Competence in Audiology
from the American Speech-Language-Hearing Association from 1985-2007.
Rankovic was awarded US Patent 7,483,831 Methods and Apparatus for Maximizing Speech Intelligibility
in Quiet or Noisy Backgrounds.