1. Department of Electrical and Computer Engineering, Queen's University 1 , Kingston, Ontario K7L 3N6, Canada
2. Department of Speech and Hearing Science, University of Illinois Urbana-Champaign 2 , Champaign, Illinois 61820, USA
3. Demant A/S 3 , Smørum 2765, Denmark a.edraki@queensu.ca , chan@queensu.ca , dfogerty@illinois.edu , jesj@demant.com