Mixed audio processing method of session television system

A processing method and conference TV technology, applied in video conference system, two-way working system, telephone communication, etc., can solve the problems of frequent voice switching, chaotic conference, drowning, etc., and achieve the goal of reducing processing power consumption and clear sound mixing effect Effect

Inactive Publication Date: 2008-05-14
深圳市迪威迅股份有限公司
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Problems solved by technology

Although this method is in line with people's habit of listening to the party with the loudest voice, it is often possible to

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  • Mixed audio processing method of session television system

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments with reference to the accompanying drawings.

[0031] As shown in Figure 1, a video conference system is schematically shown in the figure, including a multi-point control unit and 6 venue terminals. It should be understood that the number of venue terminals does not limit the present invention.

[0032] As shown in Figure 2, the described method of the specific embodiment of the present invention comprises the following steps:

[0033] 1. Decode the voice code stream of each venue terminal to obtain the voice signal of each venue terminal;

[0034] 2. Select the chairman terminal and speaker terminal among the venue terminals as the mixing activation terminal;

[0035] 3. For the venue terminals other than the chairman terminal and the speaker terminal, compare the voice signal volume values ​​of each venue terminal, and select at least one venue terminal as the audio mix...

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Abstract

The invention discloses a method for processing sound mixing for a system of a conference video, which includes at least a conference place terminal with the following steps: A. an audio bit stream of each conference place terminal is decoded, and an audio signal of each conference place terminal is obtained; B. a chairman terminal and a spokesman terminal of the conference place terminal are selected as sound mixing activation terminals; C. as for the conference place terminals except the chairman terminal and the spokesman terminal, the audio signal volume value of each conference place terminal is compared, and at least one conference place terminal is selected according to a descending order of audio signal volume as a sound mixing activation terminal; and D. the audio signals of sound mixing activation terminals selected in steps of B and C are through sound mixing according to a preset principle and then are transmitted to the related conference place terminal. By adopting the invention, speeches from each conference places are capable of being heard at any time, and mess sound caused by speeches from much many conference places is prevented; besides, the effect of sound mixing is clear and the sound mixing is easy for identification, and the processing capability of a multipoint control unit is saved.

Description

technical field [0001] The invention relates to the field of video conference, in particular to a sound mixing processing method of a video conference system. Background technique [0002] With the development of telecommunication technology, the video conference service has been more and more widely used, and the video conference system generally includes a multi-point control unit (MCU) for conference control and at least one conference terminal (participant). There are only two talking parties involved in a general voice service, but in a video conferencing system, there are usually more than two participants, and the voice of any participant can be transmitted to all other participants, and each participant Multiple other participants can be heard at the same time. Therefore, in a video conferencing system, audio mixing processing is generally required, that is, the voices of multiple participants are mixed together so that any participant can hear the voices of other p...

Claims

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Application Information

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IPC IPC(8): H04N7/15G10K15/08
CPCH04M3/568
Inventor 唐庶
Owner 深圳市迪威迅股份有限公司
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