WO2011120367A1

WO2011120367A1 - Method and device for analyzing voice quality

Info

Publication number: WO2011120367A1
Application number: PCT/CN2011/071464
Authority: WO
Inventors: 林灿榕; 卢曰万; 朱伟松; 宋涛
Original assignee: 华为技术有限公司
Priority date: 2010-03-29
Filing date: 2011-03-02
Publication date: 2011-10-06
Also published as: CN102208990A; CN102208990B

Abstract

A method and a device for analyzing voice quality are provided. The method comprises: obtaining bearer information of a call to be analyzed, wherein the call to be analyzed has designated characters; obtaining a voice data package of the call to be analyzed according to the bearer information (102); performing the voice quality analysis for the voice data package (103). The method and the device can perform the processing of filtering data without waiting to capture all network data, and the amount of the data to be processed is greatly reduced, thus effectively reducing the work of analyzing the voice quality, and increasing the efficiency of analyzing the voice quality.

Description

Voice quality analysis method and device

This application claims priority to Chinese Patent Application No. 2010101 37008. 4, entitled "Voice Quality Analysis Method and Apparatus", filed on March 29, 2010, the entire contents of which are incorporated herein by reference. In the application. TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to a voice quality analysis method and apparatus. BACKGROUND OF THE INVENTION SIP (Session initiation protocol) of IP (Internet Protocol) calls under the application of a network of Next Generation Network (IMS)/IMS (IP Multimedia Subsystem) Protocol) /BICC (Bearer Independent Cal l Control protocol) has been widely used. The call voice stream is carried in the IP network. Due to the openness of the IP network, the call carried on the IP network is inevitably subject to voice quality problems. Therefore, voice quality monitoring becomes a routine network maintenance work. How to make a large number of calls, Voice quality analysis for calls with certain characteristics becomes a problem.

In the NGN/IMS networking network, the commonly used voice quality analysis method is: deploying a device with a network data packet capture tool in the bearer network, and mirroring all network data of the network switch to the device; A signaling message for a call with a specified feature filters the IP packet to obtain a voice packet for the call.

In the process of implementing the present invention, the inventors have found that the above prior art has the following disadvantages: In the prior art, the workload of voice quality analysis is very large, and the voice quality analysis work is inefficient. Summary of the invention

The embodiment of the invention provides a voice quality analysis method, which is used to reduce the workload of voice quality analysis and improve the efficiency of voice quality analysis. The method includes: Acquiring the bearer information of the call to be analyzed, the call to be analyzed having the specified feature; obtaining the voice data packet of the call to be analyzed according to the bearer information;

Performing speech quality analysis on the voice data packet.

The embodiment of the invention further provides a voice quality analysis device, which is used to reduce the workload of voice quality analysis and improve the efficiency of voice quality analysis. The device includes:

a first obtaining module, configured to obtain bearer information of the call to be analyzed, where the to-be-analyzed call has a designated feature;

a second obtaining module, configured to obtain, according to the bearer information, a voice data packet of the to-be-analyzed call;

An analysis module is configured to perform voice quality analysis on the voice data packet.

In the embodiment of the present invention, the bearer information of the call to be analyzed with the specified feature is obtained, and the voice data packet of the call to be analyzed is obtained according to the bearer information, and the voice data packet is analyzed for voice quality, so After all the network data is captured, the data filtering process is performed, and the amount of processed data is greatly reduced, thereby effectively reducing the workload of voice quality analysis and improving the efficiency of voice quality analysis. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a flowchart of processing of a voice quality analysis method according to an embodiment of the present invention;

2 is a schematic diagram of a specific example of voice quality analysis according to an embodiment of the present invention; FIG. 3 is a schematic diagram of another specific example of voice quality analysis according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a voice quality analysis apparatus according to an embodiment of the present invention; Schematic;

FIG. 5 is a schematic structural diagram of a voice quality analysis apparatus according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a voice quality analysis apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a specific example of a voice quality analysis apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clearly, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The illustrative embodiments of the present invention and the description thereof are intended to be illustrative of the invention, and are not intended to limit the invention.

As shown in FIG. 1 , in the embodiment of the present invention, the processing procedure of the voice quality analysis method may include: Step 101: Obtain bearer information of a call to be analyzed that has a specified feature;

Step 102: Obtain a voice data packet of the call to be analyzed according to the bearer information.

Step 103: Perform voice quality analysis on the voice data packet.

It can be seen from the flow shown in FIG. 1 that, in the embodiment of the present invention, the bearer information of the call to be analyzed with the specified feature is obtained first, and then the voice data packet of the call to be analyzed is obtained according to the bearer information, and the voice quality analysis is performed on the voice data packet. Therefore, it is not necessary to perform data filtering processing after all network data is captured, and the amount of processed data is greatly reduced, thereby effectively reducing the workload of voice quality analysis and improving the efficiency of voice quality analysis. The embodiment of the invention implements voice packet capture and voice quality analysis of the call level in the IP network, and can implement voice stream analysis according to some related information of the call, including specified features of the call and bearer information of the call, instead of Network level speech analysis in the prior art.

The process shown in FIG. 1 may be implemented by a device capable of implementing its functions. For example, the device may be a Media Gateway Controller (MGC). Of course, the device may be other independent devices, or may be embedded in the media. Some kind of device of the gateway controller. Since the media gateway controller itself has signaling analysis capabilities, it is more convenient to implement the device as a media gateway controller when implemented.

For example, when the device is a media gateway controller, step 101 may be specifically implemented as: performing feature analysis on all calls in the call setup process, determining a call with the specified feature, and obtaining the Bearer information for the call. For another example, when the device is a device independent of the media gateway controller, the signaling analysis capability of the media gateway controller may still be used to perform step 101, SP: the device provides the specified feature to the media gateway controller; The media gateway controller performs feature analysis on all calls in the call setup process, determines a call with the specified feature, and obtains bearer information of the call; and the device receives the call with the specified feature sent by the media gateway controller. Carry information.

As a specific example, the implementation device of the flow shown in FIG. 1 in this example is independent of the media gateway controller, and may be referred to as a voice quality analysis device for convenience of description. The user initiates voice quality analysis on the call with certain specified features through the voice quality analysis device; the media gateway controller analyzes all call signaling in the call setup process, such as signaling of protocols such as SIP, SIP-I, or BICC. , obtain bearer information for calls with these specified characteristics. In the implementation, the foregoing specified features may be multiple, and may be set according to actual needs, for example, may be a calling number, a called number, or a CALL-ID (call identity). The foregoing bearer information may include SDP (Session Description Protocol) information of the caller side and the called side of the call to be analyzed, and the SDP information includes an IP address and a port number; of course, the foregoing bearer information may further include other Information related to bearer control of the call to be analyzed.

In a specific implementation, the voice data packet of the call to be analyzed according to the bearer information may be implemented in multiple manners, for example, may be implemented as: sending, according to the bearer information, image information to the IP bearer device, where the image information includes the voice data packet. The source IP address, the port number, and the destination IP address of the mirrored data; the mirrored data of the voice packet returned by the IP bearer device according to the mirroring information; According to this embodiment, step 103 may be specifically implemented as: Voice quality analysis.

In this embodiment, the image information of the call voice data packet is obtained according to the bearer information of the to-be-analyzed call with the specified feature, and the image information is sent to the IP bearer device, and the IP bearer device can obtain the source of the voice data packet according to the image information. The voice data packet is obtained by the IP address and the port number, and the voice data packet is mirrored to the destination IP address according to the destination IP address of the voice data packet of the voice data packet in the mirror information, that is, the foregoing voice quality. The analysis device, the voice quality analysis device, can perform voice quality analysis on the mirrored data of the voice data packet. The foregoing IP bearer devices may be multiple, and may be, for example, a media gateway (MGW), a network switching device, or the like. During the speech quality analysis, the voice quality analysis device can analyze the parameter values such as packet delay or packet loss of the received voice data packet, and can also convert the voice data packet into a voice file of an equal format for the user. Experience. When the mirroring information is sent to the IP bearer device, it can be implemented by extending the media gateway control signaling, for example, scalable H.248 signaling.

A specific example of the voice quality analysis in the embodiment of the present invention is shown below. The analysis process is shown in FIG. 2 and may include:

Step 201: The user determines a specified feature of the call to be analyzed, for example, the designated feature is a call number or a CALL-ID. If the call number is 888001, the voice quality analysis device sends the designated feature to the media gateway controller.

Step 202: The media gateway controller analyzes the characteristics of all the calls during the call setup process. After analyzing the call of the specified feature, the bearer information is sent to the voice quality analysis device during the call setup process, and the bearer information includes the master. The SDP (Session Description Protocol) information of the side and the called side is called, and the SDP information includes the IP address and port number of the media gateway corresponding to the calling party and the called party respectively.

For example: The media gateway controller includes the MGC1 and the MGC2, and analyzes the signaling of the SIP, SIP_I, or BICC protocol. After the call with the call number 888001 is known, the calling number of the calling party in the call is 888001, corresponding to the MGW1. The IP address and port number are 192. 168. 1. 200 : 4500, the called number in the call is 888002, and the corresponding MGW2 IP address and port number is 192. 168. 3. 240 : 3853.

Step 203: The voice quality analysis device sends the mirror information to the corresponding media gateway according to the bearer information, where the mirror information includes a mirror object, that is, a source IP address and a port number of the voice packet, and a destination IP address of the mirror data.

For example: The source IP address and port number of the voice data packet here include: IP address and port number of MGW1 and MGW2, the mirrored data destination is voice quality analysis device, and the source IP address and port number of the voice data packet sent to MGW1 is 192. 1. 200 : 4500, the mirrored data destination IP address is 192. 168. 10. 244, The source IP address and port number of the voice packet sent to MGW2 is 192. 168. 1. 20 0 : 3853 , and the destination IP address of the mirrored data is 192. 168. 10. 244.

Step 204: After receiving the image information, the media gateway sends the interaction data of the mirror object to the voice quality analysis device.

After receiving the mirror information, MGW1 and MGW2 respectively send the interaction data of the calling party and the called party to the voice quality analyzing device.

Step 205: The voice quality analysis device analyzes the received voice data packet, and obtains a parameter value such as delay/drop packet, and converts the voice data packet into an audio file of an equivalent format for the experience.

In addition to utilizing the signaling analysis capability of the media gateway controller, this example also comprehensively utilizes the voice data transmission capability of the IP bearer device to implement call-level voice capture and voice quality analysis in the IP network.

In another embodiment, obtaining the bearer information in step 101 may be further implemented as: obtaining bearer information of the calling party and the called side of the call to be analyzed; and obtaining, in step 102, the voice data packet of the call to be analyzed according to the bearer information, which may be implemented as: According to the bearer information of the calling party and the called side of the call to be analyzed, the media negotiation of the calling party and the called side of the call to be analyzed is performed; and the voice data packet sent by the calling party and the called party to be analyzed is received. That is, through the media negotiation on the calling party side, the voice data packet on the calling party side is sent to the voice quality analyzing device, and the voice quality analyzing device can perform the voice quality analysis. The specific negotiation process may include: the voice quality analysis device selects the local bearer information to form the virtual calling side bearer information, replaces the original calling side bearer information, and performs media negotiation with the called side; and selects the local bearer information to form a virtual called side bearer. The information replaces the original called side bearer information, and performs media negotiation with the calling side.

After receiving the voice data packet sent by the calling party and the called party to be analyzed, the voice quality analysis is performed. At this time, the received voice data packet copy can also be sent to the calling peer end to keep the call processing in the normal call state.

As shown in FIG. 3, the voice quality analysis process in this example is as shown in FIG. 3, and may include: Step 301: The user determines a designated feature of the call to be analyzed as a calling number (CallerNo) 888 001, and the voice quality analyzing device sends the media to the media. The gateway controller provides the specified feature.

Step 302: After the user 888001 calls in, the media gateway controller analyzes the calling number (Ca HerNo), to determine that the call is a call to be analyzed, then initiate a voice quality analysis process for the call.

Step 303: The media gateway controller sends the bearer side bearer information (the real IP address and port number of the terminal where the user 888001 is located: 192.168. 1.200/2544) to the voice quality analysis device. Step 304: Voice quality The analyzing device selects a local IP address and a port number to form a virtual calling side bearer information (the IP address/port number of the terminal where the virtual user 888001 is located: 192.168. 1. 244/4330) sends the media gateway controller;

Step 305: The media gateway controller replaces the virtual IP address/port number (the IP address/port number of the terminal where the virtual user 888001 is located: 192. 168. 1. 244/4330) instead of the real IP address/port of the calling side. No. (the real IP address and port number of the terminal where the user 888001 is located: 192. 168. 1. 200/ 2544), media negotiation with the called side;

Step 306: During the negotiation process of the called side, send the bearer information of the segment (the real IP address/port number of the terminal where the called user 888002 is located: 192. 168. 1. 201/3372) to the media gateway controller to complete the media. Negotiate

Step 307: The media gateway controller sends the called side bearer information (the real IP address/port number of the terminal where the called user 888002 is located: 192.168. 1. 201/3372) to the voice quality analysis device.

Step 308: The voice quality analysis device selects a local IP address and a port number to form a virtual called side bearer information (the IP address/port number of the terminal where the virtual called user 888002 is located: 192. 168. 1. 244/ 5508) sent to the media gateway controller;

Step 309: The media gateway controller replaces the virtual IP address/port number (the IP address/port number of the terminal where the virtual called user 88 8002 is located: 192. 168. 1. 244/5508) to replace the real IP address of the called side. Address/port number (the real IP address/port number of the terminal where the called user 888002 is located: 192. 168. 1. 201/3372), media negotiation with the calling side;

Step 310: After the media gateway controller completes the media negotiation on the calling and called sides, the call enters a call state, and the voice quality analysis device starts to receive the voice data packet of the calling and called parties one after another, and analyzes the call. Voice quality; At the same time, the received voice packet copy can be sent to the peer to keep the call in normal call state.

Therefore, in this embodiment, by replacing the original calling side bearer information with the virtual calling side bearer information, the virtual called side bearer information is replaced by the original called side bearer information, and media negotiation on the calling and called side is performed. The voice data packet of the calling party and the called party can be sent to the voice quality analyzing device for the purpose of voice quality analysis.

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, and the program is executed. All or part of the steps of the foregoing embodiment may be included. The storage medium may include: ROM, RAM, magnetic disk, optical disk, and the like.

A voice quality analysis apparatus is also provided in the embodiment of the present invention, as described in the following embodiments. Since the principle of solving the problem of the device is similar to the voice quality analysis method, the implementation of the device can be referred to the implementation of the method, and the repeated description is not repeated.

The embodiment of the present invention provides a voice quality analysis apparatus, and the structure thereof is as shown in FIG. 4, which may include:

The first obtaining module 401 is configured to obtain bearer information of the call to be analyzed, and the call to be analyzed has the specified feature;

The second obtaining module 402 is configured to obtain a voice data packet of the call to be analyzed according to the bearer information, and the analyzing module 403 is configured to perform voice quality analysis on the voice data packet.

In an embodiment, the first obtaining module 401 is specifically configured to:

Perform feature analysis on all calls in the call setup process, determine a call with the specified feature, and obtain bearer information of the call;

Or, providing a specified feature to the media gateway controller; receiving bearer information of the call with the specified feature returned by the media gateway controller.

As shown in FIG. 5, in an embodiment, the second obtaining module 402 may include:

The sending unit 501 is configured to send the mirroring information to the IP bearer device according to the bearer information, and the mirror image The information includes a source IP address of the voice data packet, a port number, and a destination IP address of the mirrored data. The first receiving unit 502 is configured to receive mirror data of the voice data packet returned by the IP bearer device according to the mirroring information.

At this time, the analysis module 403 can be specifically configured to: perform voice quality analysis on the mirrored data.

In an embodiment, the sending unit 501 is specifically configured to:

The image information is sent to the IP bearer device by extending the media gateway control signaling.

In an embodiment, the first obtaining module 401 is specifically configured to: obtain bearer information of a calling party to be analyzed on the call to be analyzed;

As shown in FIG. 6, the second obtaining module 402 can include:

The negotiating unit 601 is configured to perform media negotiation on the called party side to be analyzed according to the bearer information of the calling party and the called side to be analyzed;

The second receiving unit 602 is configured to receive a voice data packet sent by the calling party and the called party to be analyzed. In an embodiment, the negotiating unit 601 can be specifically configured to:

Selecting the local bearer information to form the virtual bearer side bearer information, replacing the original calling side bearer information, and performing media negotiation with the called side;

The local bearer information is selected to form a virtual called side bearer information, which replaces the original called side bearer information, and performs media negotiation with the calling side.

As shown in FIG. 7, in an embodiment, the voice quality analysis apparatus shown in FIG. 6 may further include: a sending module 701, configured to: after the second receiving unit receives the voice data packet sent by the calling party and the called party to be analyzed, Send a copy of the received voice packet to the calling peer.

In the embodiment of the present invention, the bearer information of the call to be analyzed with the specified feature is obtained, and the voice data packet of the call to be analyzed is obtained according to the bearer information, and the voice data packet is analyzed for voice quality, so that it is not necessary to capture all the network data. After the data filtering process, the amount of processed data is greatly reduced, thereby effectively reducing the workload of voice quality analysis and improving the efficiency of voice quality analysis. The embodiment of the invention implements voice packet capture and voice quality analysis of the call level in the IP network, and can be based on some related information of the call, including specified features of the call and bearer information of the call, etc. Implement voice stream analysis instead of network-level voice analysis in the prior art.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. The scope of the invention, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

A voice quality analysis method, characterized in that the method comprises:

Obtaining bearer information of the call to be analyzed, where the call to be analyzed has a designated feature;

Obtaining, according to the bearer information, a voice data packet of the to-be-analyzed call;

Performing speech quality analysis on the voice data packet.

2. The method according to claim 1, wherein the obtaining the bearer information comprises: performing feature analysis on all calls in the call setup process, determining a call with the specified feature, and obtaining a bearer of the call. Information

Or providing the specified feature to the media gateway controller; receiving bearer information of the call with the specified feature returned by the media gateway controller.

The method of claim 1, wherein the obtaining the voice data packet of the call to be analyzed according to the bearer information comprises:

Transmitting the mirroring information to the IP bearer device according to the bearer information, where the mirroring information includes a source IP address, a port number, and a destination IP address of the mirrored data packet;

And receiving the image data of the voice data packet returned by the IP bearer device according to the image information; performing voice quality analysis on the voice data packet, including:

Performing voice quality analysis on the mirrored data.

The method of claim 3, wherein the transmitting the mirror information to the IP bearer comprises:

The mirroring information is sent to the IP bearer device by the extended media gateway control signaling.

The method according to claim 1, wherein the obtaining the bearer information comprises: obtaining bearer information of the calling party and the called side of the to-be-analyzed call;

Obtaining the voice data packet of the to-be-analyzed call according to the bearer information, including:

Performing media negotiation between the calling side and the called side of the to-be-analyzed call according to the bearer information of the calling party and the called side to be analyzed;

Receiving a voice data packet sent by the calling side and the called side of the to-be-analyzed call.

The method according to claim 5, wherein, according to the bearer information of the calling party and the called party to be analyzed, the media negotiation of the calling party and the called party to be analyzed is performed, including:

The method of claim 5, after receiving the voice data packet sent by the calling party and the called party to be analyzed, the method further includes:

Send a copy of the received voice packet to the calling peer.

8. A voice quality analysis device, the device comprising:

The device according to claim 8, wherein the first obtaining module is specifically configured to: perform feature analysis on all calls in the call setup process, determine a call with the specified feature, and obtain the call. Bearer information;

The device according to claim 8, wherein the second obtaining module comprises: a sending unit, configured to send mirroring information to the IP bearer device according to the bearer information, where the mirroring information includes the voice data a source IP address, a port number, and a destination IP address of the mirrored data; the first receiving unit is configured to receive mirror data of the voice data packet returned by the IP bearer device according to the mirroring information;

The analyzing module is specifically configured to: perform voice quality analysis on the mirrored data.

The device according to claim 10, wherein the sending unit is specifically configured to: send the mirroring information to the IP bearer by extending the media gateway control signaling.

The device according to claim 8, wherein the first obtaining module is specifically configured to: obtain bearer information of the calling party and the called side of the to-be-analyzed call;

The second obtaining module includes:

a negotiating unit, configured to perform, according to the bearer information of the calling party and the called side of the to-be-analyzed call, the media negotiation of the calling party and the called party to be analyzed;

The second receiving unit is configured to receive the voice data packet sent by the calling party and the called party to be analyzed.

The apparatus according to claim 12, wherein the negotiating unit is specifically configured to: select local bearer information to form virtual bearer side bearer information, replace the original calling side bearer information, and perform media with the called side Negotiate

14. The device of claim 12, further comprising:

And a sending module, configured to: after the second receiving unit receives the voice data packet sent by the calling party and the called party to be analyzed, send the received voice data packet copy to the calling peer end.