Back to Departmental Colloquium: Spring 2007
Departmental Colloquium
Date: Thursday, Mar 29, 2007
Time: 4:15PM
Location: JWB 335
Jack Xin
University of California, Irvine
Title |
Auditory Transforms and Applications. |
Abstract |
Auditory pathway from sound to perception is a multi-level information processing system. It is modeled as a transform with uniform and fine frequency resolution at low frequencies, yet nonuniform and coarse frequency resolution towards higher frequencies. Such transforms are built with discrete Fourier transform and ear characteristics and called auditory transforms. They are invertible either mathematically or perceptually. Inversion from perception to sounds is non-unique and involves optimization. Similar problem in blind source separation will be illustrated as well. |
Computational Mathematics
Applied Mathematics