Speech enhancement using group delay functions. - B. Yegnanarayana 001; Hema A. Murthy; V. R. Ramachandran (ICSLP, 1990)

Processing of noisy speech using modified group delay functions. - B. Yegnanarayana 001; Hema A. Murthy; V. R. Ramachandran (ICASSP, 1991)