Creating virtual surround using dipole and monopole pressure fields

摘要

The objective of virtual 3D sound technology is to convey to the listener an accurate impression of an acoustic environment. This is accomplished by conveying a realistic directional impression of sounds. Most of the successful techniques for 3D sound are based on the head related transfer function (HRTF). In this disclosure, we shall present a method that creates the desired impression using dipole and monopole pressure fields. The object is to recreate locally the pressure field an actual sound source would produce, in a neighbourhood of the listener's ears without using HRTFs.