Noise power spectral density estimation from noisy speech using on-line trained hidden Markov models. - Karsten Vandborg Sørensen; Søren Vang Andersen (EUSIPCO, 2005)

Speech Enhancement with Natural Sounding Residual Noise Based on Connected Time-Frequency Speech Presence Regions. - Karsten Vandborg Sørensen; Søren Vang Andersen (EURASIP J. Adv. Signal Process., 2005)

Rayleigh Mixture Model-Based Hidden Markov Modeling and Estimation of Noise in Noisy Speech Signals. - Karsten Vandborg Sørensen; Søren Vang Andersen (IEEE Trans. Speech Audio Process., 2007)