LOUDSPEAKER SYSTEM FOR REPRODUCING MULTI-CHANNEL SOUND WITH AN IMPROVED SOUND IMAGE

Title:

LOUDSPEAKER SYSTEM FOR REPRODUCING MULTI-CHANNEL SOUND WITH AN IMPROVED SOUND IMAGE

Document Type and Number:

WIPO Patent Application WO/2011/020157

Kind Code:

A1

Abstract:

A loudspeaker system for reproducing multichannel sound with an improved sound image in a listening zone is disclosed. The loudspeaker system includes a first speaker array for location in a first position relative to the listening zone and a second speaker array for location in a second position relative to the listening zone. The first speaker array includes a first radiating lobe for radiating first sound of the multichannel sound and at least a second radiating lobe for radiating a delayed version of the first sound. The second speaker array includes a first radiating lobe for radiating second sound of the multichannel sound, and at least a second radiating lobe for radiating a delayed version of the second sound. The loudspeaker system includes means for modifying the radiating or polar pattern associated with each radiating lobe; wherein the system is arranged such that a listening position substantially equidistant from the first and second arrays is exposed to radiation from the second lobes or from the first lobes and a listening position not substantially equidistant from the first and second arrays is exposed to radiation from both the first lobe of one array and the second lobe of the other array such that substantially all positions in the listening zone receive sound radiation from the first and second arrays with substantially equal arrival times.

Inventors:

VAN DONGEN CHARLES CORNELES (AU)
ALEXANDROU DAVID JAMES STILL (AU)
CHAMPION LINDSAY ALFRED (AU)

Application Number:

PCT/AU2010/001073

Publication Date:

February 24, 2011

Filing Date:

August 20, 2010

Export Citation:

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Assignee:

REALITY IP PTY LTD (AU)
VAN DONGEN CHARLES CORNELES (AU)
ALEXANDROU DAVID JAMES STILL (AU)
CHAMPION LINDSAY ALFRED (AU)

International Classes:

H04S3/00; H04S7/00

Foreign References:

US20070110268A1	2007-05-17
US5809150A	1998-09-15

Other References: