Abstract
The linear pitch model is examined by comparing its prediction with experimental data quantitatively. The pitch model comprising two linear transformation systems ; the peripheral spectral analyzer and the central pitch processor, cannot predict pitch shift of inharmonic complex tones accurately. If the model has non-linearity in its peripheral system, it can predict the pitch shift phenomenon fairly well. As long as the central pitch processor is linear, the multimodal histogram of pitch matching cannot be explained. On the other hand, the pitch pattern predicted by the pitch model using the non-linear central processor is similar to the pattern of the pich matching histogram. So, it is supposed that the pitch model consisting of non-linear transformation in the central system, as well as in the peripheral part, can account for the pitch phenomena quantitatively.
