Fig. 3

PESQ and STOI scores of TIMIT speech signals as a function of the iSNR for N=3 and N=7 in the presence of white Gaussian noise. a PESQ scores with N=3. b PESQ scores with N=7. c STOI scores with N=3. d STOI scores with N=7. We set τ_y=2 for the quadratic filter \(\widetilde {\mathbf {h}}_{\text {max}}(k,n)\)