Masking-induced pitch shift is a product of three pattern-derived factors

Evidence

The calculation of the pitch shifts of a pure tone caused by a partial-masking sound is somewhat more complicated, since magnitude “3” has also to be taken into account. The value of the pitch shift VM can be calculated as the product of three factors, each correlated with one of the three magnitudes denoted “1”, “2”, and “3” in Fig. 5.7, and an additional constant. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 694