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Spatially correlated audio in multipoint videoconferencing

A video conferencing and multi-point technology, applied in the direction of video conferencing system, TV, two-way working system, etc., can solve the problem of not providing video conferencing system, etc.

Active Publication Date: 2007-03-14
POLYCOM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art does not provide a video conferencing system in which the mixed stereo audio is a function of the talker's position on the current conference layout

Method used

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  • Spatially correlated audio in multipoint videoconferencing
  • Spatially correlated audio in multipoint videoconferencing
  • Spatially correlated audio in multipoint videoconferencing

Examples

Experimental program
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Embodiment Construction

[0019] One aspect of the present disclosure is a video conferencing system in which endpoint users are able to enjoy spatially resolved audio, ie the audio the user hears will come from the location on the display screen where the audio source is located. FIG. 2 is a simplified block diagram illustrating components in a conventional topology of a multimedia conferencing system 200 . The conferencing system 200 may have a plurality of endpoints 210a-n and multimedia lines 220a-n, respectively. The conference system 200 also has a multimedia line 220q, a network 230 and a video control unit (VCU) 240 . VCU 240 includes network interface (NI) module 242, audio module 260 with one or more mono audio ports 262 and one or more non-mono audio ports 264, control module 270 with control lines 274, 276, 278 , a compressed video line 298 , a compressed audio line 268 and a video module 294 with an input module 295 and an output module 296 . Each of the output modules 296 may include an...

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PUM

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Abstract

The disclosed method provides audio location perception to an endpoint in a multipoint videoconference by providing a plurality of audio streams to the endpoint, wherein each of the audio streams corresponds to one of the loudspeakers at the endpoint. The audio streams are differentiated so as to emphasize broadcasting of the audio streams through one or more loudspeakers closest to a position of a speaking endpoint in a videoconference layout that is displayed at the endpoint. For example, the audio broadcast at a loudspeaker that is at a far-side of the screen might be attenuated or time delayed compared to audio broadcast at a loudspeaker that is located at a near-side of the display. The disclosure also provides a multipoint control unit (MCU) that processes audio signals from two or more endpoints according to the positions in a layout of the endpoints and then transmits processed audio streams to the endpoints in a way that allows endpoints to broadcast spatially correlated audio.

Description

technical field [0001] The invention relates to the field of multimedia multipoint conference. More specifically, the present invention relates to methods and apparatus for providing audio positional awareness in multipoint videoconferencing. technical background [0002] A multipoint video conference typically includes multiple participants or endpoints. Endpoints can provide voice; voice and video; or voice, data and video. In order to conduct two or three conferences simultaneously, the multipoint control unit (MCU) implementing the video conferencing compiles the video images from two or more locations into a single layout to be sent to different participants. The MCU receives several media channels from the access port. According to defined standards, the MCU processes audiovisual and data signals and distributes them to the connected channels. Such edited layouts are also known as continuous play (CP) layouts. . The MCU includes, for example, the MGC-100 from Pol...

Claims

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Application Information

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IPC IPC(8): H04N7/15H04H5/00H04H20/88
CPCH04N7/142H04N7/152H04M3/567H04M2201/50H04M3/568
Inventor 谢尔盖·帕特肯艾然·克纳兹沙龙·沙尼
Owner POLYCOM INC
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