W. Shehieb, M. O. Nasri, N. Mohammed, O. Debsi and K. Arshad, "Intelligent Hearing System using Assistive Technology for Hearing-Impaired Patients," 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), Vancouver, BC, 2018, pp. 725-729, doi: 10.1109/IEMCON.2018.8615021.