Opens in a new tab

AES E-Library

← Back to search

Convention Paper

High Order Spatial Audio Capture and Its Binaural Head-Tracked Playback Over Headphones with HRTF Cues

Authors: Davis, Larry S.; Duraiswami, Ramani; Grassi, Elena; Gumerov, Nail A.; Li, Zhiyun; Zotkin, Dmitry N.

AES Convention 119 · Paper 6540 · October 2005

Abstract

A theory and a system for capturing an audio scene and then rendering it remotely are developed and presented. The sound capture is performed with a spherical microphone array. The sound field at the location, and in a region of space in the neighborhood, of the array is deduced from the captured sound and represented using either spherical wave-functions or plane-wave expansions. The representation is then transmitted to a remote location for immediate rendering or stored for later reproduction. The sound renderer, coupled with the head tracker, reconstructs the acoustic field using individualized head-related transfer functions to preserve the perceptual spatial structure of the audio scene. Rigorous error bounds and a Nyquist-like sampling criterion for the representation of the sound field are presented and verified.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6540
Publication date
October 6, 2005
Session subject
Spatial Perception and Processing
Affiliation
Perceptual Interfaces and Reality Laboratory, University of Maryland (See document for exact affiliation information.)
Type
Convention Paper