A hybrid coder based on a new phase model for synchronization between harmonic and waveform coded segments. - Nilantha Katugampala; Ahmet M. Kondoz (ICASSP, 2001)

A variable rate hybrid coder based on a synchronized harmonic excitation. - Nilantha Katugampala; Ahmet M. Kondoz (INTERSPEECH, 2001)

Real-time end-to-end secure voice communications over GSM voice channel. - Nilantha Katugampala; Khaldoon T. Al-Naimi; Stephane Villette; Ahmet M. Kondoz (EUSIPCO, 2005)