Speaker for reflecting sound off viewing screen or display surface

Patent metadata

Field	Value
Publication number	US-11277703-B2
Application number	US-202016990896-A
Country	US
Kind code	B2
Filing date	Aug 11, 2020
Priority date	Aug 31, 2012
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

Embodiments are described for rendering spatial audio content through a system that is configured to reflect audio off of one or more surfaces of a listening environment. The system includes an array of audio drivers distributed around a room, wherein at least one driver of the array of drivers is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment and a renderer configured to receive and process audio streams and one or more metadata sets that are associated with each of the audio streams and that specify a playback location in the listening environment.

First claim

What is claimed is:

1. A speaker for generating sound waves in a listening environment, the speaker comprising:
a speaker cabinet; and
an audio driver enclosed in or coupled to the speaker cabinet, wherein the audio driver is configured to project sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment, wherein a position of the audio driver is automatically set based on at least one acoustic characteristic of the listening environment and a relative position of the speaker cabinet with respect to at least one other speaker cabinet in the listening environment, and wherein the one or more surfaces include a viewing screen or display surface located at a front of the listening environment, and wherein the front of the listening environment is a direction facing a listener in the listening environment.

2. The speaker of claim 1 wherein the audio driver is a front-firing, side-firing, upward firing, or downward firing driver.

3. The speaker of claim 1 wherein the audio driver is a full range speaker, a subwoofer, or a tweeter.

4. The speaker of claim 1 wherein the viewing screen or display surface includes a relatively flat surface.

5. The speaker of claim 1 wherein the listening environment includes a ceiling, a floor, a front wall, a back wall, and side walls, wherein the front wall is positioned facing the listener in the listening environment.

6. The speaker of claim 5 wherein the viewing screen or the display surface is located substantially on or near the front wall.

7. The speaker of claim 1 wherein the listening environment includes a cinema.

8. The speaker of claim 1 wherein the listening environment includes a home theater.

9. The speaker of claim 1 further comprising a second speaker driver enclosed in or coupled to the speaker cabinet for projecting sound waves intended to be heard by the listener in the listening environment through a direct propagation path.

10. The speaker of claim 9 wherein the second speaker driver is located on a ceiling or side wall of the listening environment.

11. The speaker of claim 10 further comprising a third speaker driver enclosed in or coupled to the speaker cabinet that is an upward firing driver for projecting sound waves toward a ceiling of the listening environment for reflection down to the listening area.

12. A method for generating sound waves in a listening environment, the method comprising:
determining at least one acoustic characteristic of the listening environment;
automatically setting a position of an audio driver enclosed in or coupled to a speaker cabinet in the listening environment based on the at least one acoustic characteristic of the listening environment, and a relative position of the speaker cabinet with respect to at least one other speaker cabinet in the listening environment; and
projecting, using the audio driver, sound waves toward one or more surfaces of the listening environment for reflection to a listening area within the listening environment, wherein the one or more surfaces include a viewing screen or display surface located at a front of the listening environment, and wherein the front of the listening environment is a direction facing a listener in the listening environment.

Assignees

• Dolby Laboratories Licensing Corp

Inventors

• Crockett Brett G
• Hooks Spencer
• Seefeldt Alan
• Lando Joshua B
• Brown C Phillip
• Mehta Sripal S
• Murrie Stewart

Classifications

• H04R5/02 Primary

  Spatial or constructional arrangements of loudspeakers · CPC title

• H04S7/00 Primary

  Indicating arrangements; Control arrangements, e.g. balance control · CPC title

• H04R2205/024

  Positioning of loudspeaker enclosures for spatial sound reproduction · CPC title

• H04S2400/11

  Positioning of individual sound objects, e.g. moving airplane, within a sound field (H04S2420/13 takes precedence) · CPC title

• H04S2420/01

  Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD] · CPC title