AES E-Library

AES E-Library

Immersive Sound Rendering Using Laser-Based Tracking

Document Thumbnail

This paper describes the underlying concepts behind the spatial sound renderer built at the University of Southern California's Immersive Audio Laboratory. In creating this sound rendering system, the authors were faced with three main challenges: first, the rendering of sound using the head-related transfer functions (HRTFs); second, the cancellation of the crosstalk terms; and third, the localization of the listener's ears. To deal with the spatial rendering sound, a two-layer method of modeling the HRTFs was used. The first layer accurately reproduced the ITDs and IADs, and the second layer reproduced the spectral characteristics of the HRTFs. A novel method for generating the required crosstalk cancellation filters as the listener moves was developed based on low-rank modeling. Using Karhunen-Loeve expansion, the authors can interpolate among listener positions from a small number of HRTF measurements. Finally, a head detection algorithm for tracking the location of the listener's ears in real time using a laser scanner is presented.:

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society