Post masking with two maskers: effects of bandwidth.
Thresholds of test tone impulses masked by one masker M1 or two maskers M1 + M2 are determined in a post-masking (forward masking) stimulus paradigm. Test tones are centered at masker M1 and the bandwidth of M1 is varied. The magnitude of the threshold decrease delta L caused by the addition of masker M2 depends on masker M2 as follows: Large delta L for narrow-band noise and AM tone, medium delta L for pure- and QFM-tone, almost no threshold decrease for broadband noise-masker M1.
D000161:Acoustic Stimulation / Q000379:methods; D000162:Acoustics; D001309:Auditory Threshold; D006801:Humans; D010470:Perceptual Masking