Before revision:  First, a reexamination of the classical effect, consisting of two perceptual experiments, provides a quantitative characterisation of the dependence of the sweep pitch shift with the properties of the sweeps. Next, simulations carried on the new experimental data show that classical temporal and spectral models of pitch processing cannot explain the pitch shift. Conversely, a modified spectral model considering a predictive interaction between frequency and FM encoding fully reproduces our and previous experimental data .
After revision:  First, a reexamination of the classical effect, consisting of two perceptual experiments, provides a quantitative characterisation of the dependence of the sweep pitch shift , cannot be explained by standard feedforward processing models. We hypothesised that the sweep pitch shift is caused by a predictive interaction between frequency and FM encoding fully reproduces our and previous experimental data .