Methods, apparatus and systems for audio reproduction

• US 10,499,175 B2
• Filed: 12/05/2018
• Issued: 12/03/2019
• Est. Priority Date: 03/23/2010
• Status: Active Grant

• Current Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Original Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Inventors: Chabanne, Christophe, Tsingos, Nicolas R., Robinson, Charles Q.
• Primary Examiner(s): Nguyen, Duc
• Assistant Examiner(s): Mohammed, Assad
• Application Number:
  US16/210,935
• Publication Number:
  US 20190182608A1
• Time in Patent Office: 363 Days
• CPC Class Codes: H04R 1/403 loud-speakers
• CPC Class Codes: H04R 2499/15 Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers
• CPC Class Codes: H04S 2400/05 Generation or adaptation of centre channel in multi-channel audio systems
• CPC Class Codes: H04S 3/002 Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution control circuits for electronic adaptation of the sound field H04S7/30
• CPC Class Codes: H04S 7/30 Control circuits for electronic adaptation of the sound field

Abstract

Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Claims

1. A method for audio reproduction of an audio signal, the method comprising:

receiving, by a playback device, the audio signal, wherein the audio signal includes metadata, wherein the metadata includes first screen size information and location information, wherein the location information indicates a first location of sound reproduction of the audio signal relative to the first screen size information;

receiving second screen size information associated with a display screen of the playback device;

determining, by the playback device, a second location of sound reproduction of the audio signal relative to the display screen according to the location information, the first screen size information and the second screen size information; and

rendering, by the playback device, the audio signal at the second location within the display screen according to the location information, the first screen size information and the second screen size information.

2. The method of claim 1, wherein the audio signal is a center channel audio signal.

3. The method of claim 1, further comprising receiving a plurality of other audio signals for a front left speaker, a front right speaker, a back left speaker, and a back right speaker.

5. The method of claim 1, wherein location information corresponds to Cartesian x-y coordinates relative to the first screen size information.

6. The method of claim 1, wherein the location information corresponds to a percentage of screen dimensions relative to the first screen size information.

7. The method of claim 1, wherein the location information corresponds to a percentage of screen dimensions relative to the first screen size information, wherein the audio signal is rendered within the display screen based on a device independence of the second screen size information.

8. The method of claim 1, wherein the metadata indicates an offset for a channel of the audio signal, wherein the offset adjusts a desired position of the channel horizontally and vertically.

9. The method of claim 1, wherein the metadata indicates a plurality of aspect ratios related to the first screen size information.

10. The method of claim 1, wherein the display screen is a single display screen, wherein the audio signal is rendered within the single display screen.

11. A non-transitory computer readable medium storing a computer program that, when executed by a processor, controls an apparatus to execute processing including the method of claim 1.

4. A sound reproduction system comprising:

a playback device including a display screen and a processor,

wherein the playback device is configured to receive the audio signal, wherein the audio signal includes metadata, wherein the metadata includes first screen size information and location information, wherein the location information indicates a first location of sound reproduction of the audio signal relative to the first screen size information,

wherein the processor is configured to receive second screen size information associated with the display screen,

wherein the processor is configured to determine a second location of sound reproduction of the audio signal relative to the display screen according to the location information, the first screen size information and the second screen size information, and

wherein the processor is configured to render the audio signal at the second location within the display screen according to the location information, the first screen size information and the second screen size information.

12. The sound reproduction system of claim 4, further comprising:

a plurality of speakers that is configured to output, at the second location within the display screen, the audio signal rendered by the processor.