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Method and device for realizing distributed local sound mixing

An implementation method and distributed technology, applied in the transmission system, electrical components, etc., can solve the problems of unsolvable performance, unsatisfactory, high cost, etc., and achieve the effects of saving RTP stream resources, reducing equipment costs, and high reliability

Active Publication Date: 2020-06-19
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, for the voice function design of government-enterprise gateway equipment and FTTB equipment, some manufacturers choose to deploy a voice Dsp chip. The advantage is that it can well solve the concurrent needs of ordinary voice and the concurrent needs of the host of the three-party call conference. The disadvantage is that the cost is high; some The manufacturer adopts the PON chip built-in voice Dsp concurrently to support double the number of voice channels RTP flow scheme. The advantage is that it can well solve the common voice concurrent requirements of 4-channel and 8-channel government-enterprise gateway equipment and FTTB equipment and the concurrency requirements of the host party of the three-party call conference. The disadvantages One is that the cost is high, and the other is that it cannot meet the concurrency requirements of the three-party call conference moderator of the 16-way, 24-way and 32-way government-enterprise gateway equipment and FTTB equipment; while the built-in voice Dsp of the PON chip supports single voice concurrently The advantage of the multi-channel RTP streaming solution is that the cost is low, but the disadvantage is that it cannot solve the performance problem of the concurrency of the host party of the three-party call conference on the device side

Method used

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  • Method and device for realizing distributed local sound mixing
  • Method and device for realizing distributed local sound mixing
  • Method and device for realizing distributed local sound mixing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a method for implementing distributed local audio mixing, which is used in an application scenario of a three-party call. see figure 1 As shown, the three-party call application scenario includes an OLT connected to a server, and a plurality of optical fiber access devices supporting voice services are connected to the OLT. see figure 2 As shown, the implementation method of the distributed local mixing includes the following steps:

[0043] A. When a fiber-optic access device that supports voice services acts as the host and establishes a three-party call service with a device that acts as a participant, the OLT selects the device with the smallest RTP resource load as the neighbor device from all the connected devices;

[0044] B. After the three-party call starts, the neighbor device replaces the fiber optic access device supporting the voice service as the moderator to complete the local audio mixing, and realizes the forwarding of the RT...

Embodiment 2

[0052] The implementation method of a distributed local audio mixing provided by this embodiment, its basic steps are the same as those of Embodiment 1, the difference is that, as an optional implementation mode, in this embodiment, each voice service Fiber access devices record their own RTP resource usage in real time. The RTP resource usage is zero by default. When the fiber access device that supports voice services has a port that goes off-hook to open a channel, the RTP resource usage is increased by 1; when the fiber access device that supports voice services has a port that is switched off, The RTP resource usage is reduced by 1.

[0053] On this basis, in step A of the method, the OLT selects the device with the smallest RTP resource load as the neighbor device from all the connected devices, which specifically includes the following steps: the OLT obtains the RTP resource usage of all the connected devices ; By comparing the size of the RTP resource usage, select th...

Embodiment 3

[0058] The implementation method of a distributed local audio mixing provided by this embodiment has the same basic steps as the first embodiment, the difference is that, as an optional implementation, the OLT maintains a three-party call record table, the The table records the source IP address of the host device, the POTS (Plain Old Telephone Service, analog telephone service) port number of the host device, and the first source UDP (User Datagram Protocol, User Datagram Protocol) corresponding to the POTS port of the host device port number, the second source UDP port number corresponding to the POTS port of the host device, the source IP address of the neighbor device, and the first source UDP port number and the second source UDP port number used by the neighbor device to assist the three-party call, Third source UDP port number.

[0059] On this basis, in step B of the method, the neighbor device replaces the fiber access device supporting the voice service as the modera...

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Abstract

The invention discloses a method and device for realizing distributed local sound mixing, and relates to the technical field of voice in optical fiber communication. The implementation method is usedfor a three-party call application scene, the three-party call application scene comprises an OLT connected with a server, and a plurality of optical fiber access devices supporting voice services arehung under the OLT. The implementation method specifically comprises the following steps: when a certain optical fiber access device supporting a voice service is used as a host to establish a three-party call service with a device used as a participant, an OLT selects a device with the minimum RTP resource load as a neighbor device from all devices hung under the OLT; after the three-party callbegins, the neighbor device replaces an optical fiber access device which is used as a host and supports a voice service to complete local sound mixing, thereby realizing forwarding of the RTP stream.According to the invention, while the equipment cost is saved, the performance problem of concurrency of the host of the three-party call conference on the equipment side is solved, and the actual application requirements are met.

Description

technical field [0001] The invention relates to the technical field of speech in optical fiber communication, in particular to a method and device for realizing distributed local sound mixing. Background technique [0002] Three-party call is also called multi-party call or conference call. It is a new service based on call waiting and hold. The three-party call can simulate the effect of an on-site meeting. First, there must be an organizer (that is, the meeting host), who is responsible for organizing the participants to join and can control the progress of the meeting. [0003] The three-party call function on the voice device side is the most common type of local mixing. MSAN (Multi-Service Access Network, integrated service access network) equipment has at least 256 voice channels, and the limit ratio of ordinary voice services is required to be 1:4, that is, it needs to support at least 64 channels of ordinary voice concurrently, and the three-party call function requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L65/403H04L65/65
Inventor 欧朋强亮徐巍张世全
Owner FENGHUO COMM SCI & TECH CO LTD
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