Modulation frequency domain adaptive gain equalizer using convex optimization. - Rizwan Ishaq; Muhammad Shahid 001; Benny Lövström; Begoña García Zapirain; Ingvar Claesson (ICSPCS, 2012)

Adaptive Gain Equalizer for improvement of esophageal speech. - Rizwan Ishaq; Begoña García Zapirain (ISSPIT, 2012)

Subband modulator Kalman filtering for single channel speech enhancement. - Rizwan Ishaq; Begoña García Zapirain; Muhammad Shahid 001; Benny Lövström (ICASSP, 2013)

Esophageal Speech enhancement using modified voicing source. - Rizwan Ishaq; Begoña García Zapirain (ISSPIT, 2013)

Vowel Enhancement in Early Stage Spanish Esophageal Speech Using Natural Glottal Flow Pulse and Vocal Tract Frequency Warping. - Rizwan Ishaq; Dhananjaya N. Gowda; Paavo Alku; Begonya Garcia-Zapirain (SLPAT@Interspeech, 2015)