Models of the pitch and pitch strength of ripple noise

A model based on a peripheral weighting function rather than on critical bands is used to provide predictions for the repetition pitch and pitch strength associated with ripple noise. The peripheral weighting function along with a bandpass filter representing the middle and outer ears produces a transformation of the ripple noise spectrum. The Fourier transform (autocorrelation) of this spectrum produces predictions consistent with the data obtained on repetition pitches. This approach is discussed in relation to other recent models of the pitch of complex stimuli. In particular, the predictions of the pattern-transformation model for the pitch of complex stimuli were compared to data from ripple noise experiments. The pattern-transformation model does not appear capable of accounting for many of the pitches associated with ripple noise.