Multiple frequency harmonics analysis and synthesis of audio signals

In this paper we propose a multiple frequency harmonics model for analysis and synthesis of audio signals. The novelty of this model is that a composite sound can be represented by a few number (two or three) of frequency harmonics, each with time-varying fundamental frequency. We present the model and some key issues in tuning it. Results demonstrate that the model is valid and promising. It is convenient for time- and frequency-scale modifications and is of interest for low bit rate audio coding