Masking pattern curves are scale-invariant and predictable by horizontal shifts

Evidence

The results displayed in Figs. 4.7 to 4.9 also hold for other masker frequencies if appropriate scales are chosen. Here, the effects shown with narrow-band noise maskers appear again: except at frequencies of the masker below 500 Hz where the masked thresholds as a function of the test-tone frequency appear to be broader, the shape of the curves may be predicted by shifting the whole curves in Figs. 4.4, 4.7 and 4.8 horizontally until the maximum appears at the masker frequency. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 447

Categorization

• XREF: This horizontal-shift universality of masking curves echoes the scale-invariance style of explanation (self-similarity across parameters) familiar from Fourier/time-frequency dualities in psychoacoustics.