Skip Navigation
  • UC Riverside
  • University Advancement
  • Strategic Communications

Partial Differential Equations & Applied Math: "The De-shape algorithm: “context-free” fundamental frequency estimator"

Dr. Chen-Yun Lin, University of Toronto

Wednesday, May 10, 2017
  1:10–2 p.m.


Location: Surge Building 268
  Parking Information

Category: Seminar

Description: Fundamental frequency (f0) estimation (a.k.a. pitch detection) has been an important topic in many fields since the age of computers. While many context-specific attempts have been made, it has been difficult to develop a “context-free” f0 estimator. Motivated by cesptrum analysis, Lin-Su-Wu proposes an f0 estimator, named the de-shape algorithm, which works well in a variety of contexts.
 

In this talk, I introduce a mathematical model that quantifies multiple component oscillatory signals with time-varying frequency and amplitude and with time-varying non-sinusoidal oscillatory pattern. I illustrate the proposed algorithm through several numerical results on simulated, medical, musical, and biological signals as well as explain how cesptrum analysis is used to eliminate the wave-shape function influence and to extract the f0 information.

 



Open to: General Public
Admission: Free
Sponsor: Mathematics

Contact Information:
-

-