ColloquiaKelly Fitz, Thursday June 7, 10:30 AM

[Josef Jurek]

Department of Computer Science Sound Seminar Series
Thursday, June 7, 2001, 10:30 AM, Ryerson 251


  Loris and the Reassigned Bandwidth-Enhanced Additive Sound Model

                           Kelly Fitz
                   Washington State University


Dr. Fitz will present Loris, an Open Source C++ class library
implementing analysis, manipulation, and synthesis of digitized sounds
using the Reassigned Bandwidth-Enhanced Additive Sound Model. Loris
supports modified resynthesis and manipulations of the model data,
such as time- and frequency-scale modification and sound morphing.

The Reassigned Bandwidth-Enhanced Additive Sound Model represents
sound as a collection of simple components having sinusoidal and
noise-like characteristics. Dr. Fitz will present analytical methods
for collecting and incorporating noise energy in additive sound
models, and will introduce the use of the method of reassignment in
sound modeling to produce a sharper, more robust representation than
is possible using conventional additive modeling techniques. Sound
morphing applications of the Loris library will be presented and
discussed to highlight the strengths of the Reassigned
Bandwidth-Enhanced Additive Model. Many exciting sound examples will
be played.


Dr. Kelly Fitz, a computer musician and audio signal processing
engineer, is on the electrical engineering and computer science
faculty at Washington State University.  He is also a member of the
CERL Sound Group at the University of Illinois at Urbana-Champaign
and has worked with the Audio Development Group at the National
Center for Supercomputing Applications at the University of
Illinois.