Last Updated: 20060803, mei
T14 - AN INTRODUCTION TO AMBISONICS
Presenters:
Eric Benjamin, Dolby Laboratories - San Francisco, CA, USA
Dave Malham, Music Technology Group - University of York - Heslington, York, UK
Abstract:
Ambisonics is a surround sound system that allows unparalleled flexibility in the recording, distribution, and reproduction process.
Rotation of sound fields is easily accomplished. The system allows a continuous homogenous distribution of sound images in the horizontal plane or in true 3-D sound reproduction. The number of channels that are recorded or transmitted is not directly related to the number of loudspeakers used for reproduction, which gives uncommon flexibility in configuring systems. The directional resolution and size of the sweet spot can be increased by increasing the numerical order of the system.
Ambisonics makes use of psychoacoustic models of localization to optimize its performance. How Ambisonics works and some of its applications will be discussed.
