Table 2.

Current level (in dB re 1mA) used in Experiment 1 and 2. For Experiment 1 (left part), the levels were determined so that the three masker shapes would mask as effectively a signal presented on the masker channel (channel 9). For Experiment 2, the levels were loudness-balanced at MCL. S5 and S6 did not participate in Experiment 2. The last two rows show the mean levels of subjects S1-S4 who participated in both Experiments and of subjects S1-S6 only for Experiment 1.

	EXPERIMENT 1			EXPERIMENT 2
Subject	Masker BP-C	Masker PS-C	Masker DPS-C	BP-A	BP-C	PS-A	PS-C	DPS-A	DPS-C
S1	−19.6	−19	−28	−16.5	−16.9	−17.3	−18.4	−22.9	−22.9
S2	−12	−10.3	−13.6	−12	−12	−11.3	−12.1	−12.7	−13.3
S3	−17.7	−15.1	−17.3	−16.8	−17.1	−17.9	−16.8	−22.9	−22.9
S4	−7.5	−9.5	−13	−13.6	−13.6	−13.6	−14.3	−17.3	−17.3
S5	−14.7	−14.3	−19.7	-	-	-	-	-	-
S6	−15.5	−15.1	−22.9	-	-	-	-	-	-
Mean (S1-S4)	−14.2	−13.5	−18	−14.7	−14.9	−15	−15.4	−19	−19.1
Mean (S1-S6)	−14.5	−13.9	−19.1	-	-	-	-	-	-