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Method and apparatus for controlling the reproduction of audio contents by two loudspeakers

A loudspeaker and content technology, applied in the direction of loudspeaker distribution signal, broadcast information characteristics, frequency/direction characteristic device, etc., can solve the problem of the number of people watching the program, etc.

Active Publication Date: 2010-11-03
STMICROELECTRONICS (GRENOBLE 2) SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the number of people watching a show is limited by the number of headphones that can be connected to the TV

Method used

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  • Method and apparatus for controlling the reproduction of audio contents by two loudspeakers
  • Method and apparatus for controlling the reproduction of audio contents by two loudspeakers
  • Method and apparatus for controlling the reproduction of audio contents by two loudspeakers

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Embodiment Construction

[0083] exist figure 1 In , the notation DISP designates a device that makes it possible to control the broadcast of audio content on, for example, the speakers HPD and HPG of a television set.

[0084] The device comprises at the head end a digital receiver REC for receiving e.g. television signals and delivering the digital signal DSTR to a first audio decoder AD1 of conventional structure known per se and to a second decoder AD1 of conventional structure also known per se. device AD2.

[0085] The digital stream DSTR actually comprises first audio content eg related to a TV program and auxiliary audio content eg an audio description of the TV program.

[0086] The first audio content is decoded in audio decoder AD1, while the auxiliary content is decoded in audio decoder AD2, which delivers a mono output there.

[0087] Thus, the first audio decoder AD1 delivers the first audio content CAD1G and CAD1D on its two left and right outputs to a stereo mixer MIX of conventional ...

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Abstract

The invention relates to a method and an apparatus for controlling the reproduction of audio contents by two loudspeakers. The broadcasting of audio contents by two loudspeakers is controlled by delivering a first audio content to the two loudspeakers and a further processing in which an auxiliary audio content is received. A second audio content is formed by temporally delaying the auxiliary audio content with a delay dependent on the spacing between the loudspeakers and on a distance between a first loudspeaker and a spot located in front of this first loudspeaker. The second audio content is delivered to the first loudspeaker. A third audio content is formed by inverting the auxiliary audio content. The third audio content is then delivered to the second loudspeaker.

Description

technical field [0001] The present invention relates to the broadcasting of audio content through loudspeakers, especially with a large angle of coverage. Background technique [0002] Broadcasters of television programs, either directly or via a decoder box (using the term known to those skilled in the art, "set-top box"), sometimes transmit dual audio content (two different audio programs) associated with a single video channel, thereby giving Their customers offer additional services (eg, a program for the partially sighted in association with the program's audio description). [0003] The distribution of multi-audio content is becoming increasingly common, and their decoding is supported by most television sets and current codecs. [0004] The problem arises when it is desired to listen to two audio contents at the same time using eg the speakers of a television. [0005] In fact, since the right and left speakers generally have wider coverage, it is not possible to si...

Claims

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Application Information

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IPC IPC(8): H04R1/20H04N5/60
CPCH04H20/88H04S7/302H04R1/403H04R3/12
Inventor 维亚内·托富尔加尔·拉叙尔
Owner STMICROELECTRONICS (GRENOBLE 2) SAS
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