Auditory Interpretation and Application of Warped Linear Prediction

This paper presents a study on a specific signal processing technique, the warped linear prediction (WLP), interpreted here from an auditory perception point of view. WLP is a signal modeling technique that can approximate the frequency resolution properties of the human ear. WLP is shown in this paper to have system-level similarities with signal analysis found in the peripheral auditory system. Several phenomena in auditory modeling are addressed where WLP-based spectral modeling and residual processing are useful. Pitch analysis, including multipitch analysis, segregation of harmonic signals by pitch-predictive means, and other processing techniques (synthesis, recognition) are shortly discussed.