AES E-Library

AES E-Library

Sound Localization of Beamforming-Controlled Reflected Sound from Ceiling in Presence of Direct Sound

Sound localization from the ceiling is important for 3D surround-sound systems, such as Dolby Atmos, 22.2 channel and higher-order ambisonics. Such systems are difficult to set up in a typical home environment owing to loudspeakers that must be placed on the ceiling. This problem can be solved by using the reflected sound from the ceiling through loudspeaker-array beamforming, such as in commercial sound bars. In the beamforming method, the listener always hears the jammer sound (side lobe) before he/she hears the main sound from the ceiling. To date, the relationship between the time and level differences in the direct and reflected sounds for sound image localization at the reflected position on the ceiling is not clear. This paper investigates this relationship through listening experiments. We also confirmed the localization at the ceiling by using a 32-element spherical loudspeaker array.

Authors:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=19466

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