Stimuli and procedure

These simulations assumed that f₁(t) was the same 10 sinusoidal signals as those used as the stimuli in model A and that f₂(t) was 45 bandpassed random noise maskers of two types formed by varying random seeds (five types) and by varying the bandwidth (nine types). Thus, the total number of stimuli was 450. The masker bandwidths were 33, 67, 133, 207, 352, 499, 648, 801, and 958 Hz. Three of these bandwidths were related to 1/4, 1/2, and 1 ERB, respectively. The remainder were the same bandwidths related to simulations for model A.

In model B, in order to measure the masking threshold as a function of the masker bandwidth, we measure the SNR of the sinusoidal signal $\hat{f}_{1,B}(t)$ extracted for the masking threshold as a function of the masker bandwidth.