Redwood Neuroscience
Title: Structural Models of HRTFs
Richard O. Duda
CIPIC Interface Laboratory
UC Davis
Abstract:
For several years, researchers at the CIPIC Interface
Laboratory have been working on the development of models for head-related
transfer functions (HRTFs), which play a central role in the perception of
spatial sound. The models exploit our
understanding of the reflection and scattering of acoustic waves by the torso,
head and pinnae.
The effects of the head and torso can be explained by simple models
based on spherical approximations (the so-called "snowman"
model). The effects of the pinnae are more complicated, in that they include the
effects of both reflection and resonances of various pinna
cavities. Recent progress on pinna modeling offers hope that we will be able to go
directly from anthopometric measurements to
individualized HRTFs.
This presentation will provide an overview of this structural approach
to HRTF modeling.