Instantaneous Harmonic Analysis: Techniques and Applications to Speech Signal Processing

Parametric speech modeling is a key issue in various processing applications such as text to speech synthesis, voice morphing, voice conversion and other. Building an adequate parametric model is a complicated problem considering time-varying nature of speech. This paper gives an overview of tools for instantaneous harmonic analysis and shows how it can be applied to stationary, frequency-modulated and quasiperiodic signals in order to extract and manipulate instantaneous pitch, excitation and spectrum envelope.