Simulation of the Secondary Residue Effect by Digital Computer
H. Fischler, L. Cern · The Journal of the Acoustical Society of America · 1968
A model accounting for the second effect of pitch shift in perception of the tonal residue, is re-examined in the light of a computer simulation. It provides the temporal fine structure of the response of the basilar-membrane motion to stimulation of the ear by AM complex tones. Computation is performed by convolution of the input signal with the impulse response of the ear's mechanical system. The results confirm the earlier claim that the secondary residue effect can be fully accounted for by mechanical filtering, without resorting to neural mechanisms. The function relating the magnitude of the secondary effect to basilar-membrane locations, was certified. The simulation also resolves the ambiguity in the algebraic sign of the secondary residue effect.