[1] Duke Univ, Duke Hearing Ctr, Durham, NC 27706 USA
[2] Duke Univ, Dept Biomed Engn & Bioengn, Durham, NC 27706 USA
[3] Univ Texas Dallas, Dept Biomed Engn & Bioengn, Richardson, TX 75083 USA
[4] IEEE, New York, NY 10016 USA
[5] IEEE Engn Med & Biol Soc, Piscataway, NJ 08854 USA
[6] Univ Warwick, Coventry, W Midlands, England
[7] MED EL Co, Innsbruck, Austria