Low complexity joint optimization of excitation parameters in analysis-by-synthesis speech coding. - Udar Mittal; James P. Ashley; Edgardo M. Cruz-Zeno (INTERSPEECH, 2003)

Joint Optimization of Excitation Parameters in Analysis-By-Synthesis Speech Coders Having Multi-Tap Long Term Predictor. - Udar Mittal; James P. Ashley; Edgardo M. Cruz-Zeno; Mark A. Jasiuk (ICASSP (1), 2005)

Low Complexity Factorial Pulse Coding of MDCT Coefficients using Approximation of Combinatorial Functions. - Udar Mittal; James P. Ashley; Edgardo M. Cruz-Zeno (ICASSP (1), 2007)