STANFORD UNIVERSITY
EE 350 RADIOSCIENCE SEMINAR
Professor Antony Fraser-Smith

Fall 2000-2001

Date: Wednesday, May 2, 2001
Time: 4:15-5:30 PM; Refreshments at 4:00 PM
Location: Bldg. 200, Rm. 34


Music Applications of Signal Processing

Prof. Julius Smith
Center for Computer Research in Music and Acoustics (CCRMA), Stanford University

Abstract

This talk will survey some of the more effective algorithms for real-time "virtual musical instruments", particularly those for simulating strings, woodwinds, and the human voice.A common thread in all cases is that the algorithms are based on familiar signal processing structures.However, they are derived initially as finite difference schemes solving the wave equation for vibrating strings and air columns.The initial finite difference schemes are simplified computationally using elementary equivalences and psychoacoustic principles,resulting in familiar looking digital filter structures which nevertheless retain a physical interpretation. Sound examples will be played to indicate the richness of the timbral spaces offered by the models.