Study Of Spectro-Temporal Parameters In Musical Performance For Expressive Instrument Synthesis.

Modeling expressive synthesis requires to deal with a wide range of sound's behavior that include spectral dynamics which are idiomatic to the instrument or characteristic of the playing technique. In the paper we analyze short time evolution of power-spectral envelopes, adaptively changing the analysis parameters so as to variably include filter envelopes, and the pitched excitation parts. Typical sequences of sound features are obtained from quantized sequences of parameters. By applying string matching techniques, new sequences of features are created and new sounds that have dynamically changing temporal behavior are re-synthesized. 1. INTRODUCTION Simulation of naturally behaving sounds, such as sounds that occur during an expressive musical performance, requires modeling and understanding of the spectro-temporal behavior in a variety of playing conditions. In a natural sound we observe a great amount of spectro-temporal variations, which are difficult to capture and model. Thus,..