CN101437247A - Test method for evaluating voice quality - Google Patents
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- CN101437247A CN101437247A CNA2008101633595A CN200810163359A CN101437247A CN 101437247 A CN101437247 A CN 101437247A CN A2008101633595 A CNA2008101633595 A CN A2008101633595A CN 200810163359 A CN200810163359 A CN 200810163359A CN 101437247 A CN101437247 A CN 101437247A
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Abstract
The invention discloses a test method for evaluating voice quality, and belongs to the technical field of wireless communication network monitoring. The test method for evaluating the voice quality is applied to wireless communication networks and comprises the following steps: a test center initiates a test through a tandem exchange and calls through a BICC signaling according to a specified route, a call returns to the test center and enters a communication state, simultaneously builds voice channels and bidirectionally sends a special numeric encoding voice signals, namely high frequency signals of common dual-tone multifrequency signals change and low frequency signals of the common dual tone multifrequency signals do not change; and single pass, crosstalk and voice quality of the route are statistically analyzed according to the sending and receiving special numeric encoding voice signals. The test method for evaluating the voice quality realizes testing function for the special numeric encoding voice signals out of band.
Description
Technical field
The invention belongs to cordless communication network monitoring technique field, be specifically related to a kind of method of testing that is used for evaluating voice quality.
Background technology
Along with going deep into of China Mobile network IPization, except voice service, increasing IP-based multimedia service will appear, also bring the problem of more network, business and customer experience simultaneously, O﹠M faces new challenges.Yet the non-carrier class characteristic of IP network itself, network IPization is faced with the problem of many O﹠Ms aspect: difficult as fault location, alarm can't link, quality of service can't related each network quality etc. problem.
In the prior art, application number discloses a kind of end-to-end speech quality Auto-Test System and method thereof in the Chinese patent application file of " 200510048289.5 ".This end-to-end speech quality Auto-Test System and method thereof utilize two phones that insert NGN of sound card control to converse, and need configuration NGN phone, promptly dispose probe, and construction and maintenance cost are higher; The PESQ score of representing voice quality can only be calculated, phonetic problems such as single-pass, cross-talk can not be monitored.In addition, application number is for disclosing a kind of dialing monitoring system and monitoring method thereof that is used for the communication network failure investigation in the Chinese patent application file of " 200710067308.8 ".System and corresponding network element to be measured are set up loop, and send, receive and the comparison touch-tone signal, can monitor phonetic problems such as single-pass, cross-talk, but after the speech business of Softswitch begins to be carried on the IP bearer network, because of touch-tone signal is carried in the in-band signalling, do not transmit in voice channel, common touch-tone signal can not reflect voice quality; The PESQ score of representing voice quality can not be calculated by this system simultaneously.
Summary of the invention
For solving problems of the prior art, the present invention aims to provide a kind of method of testing that is used for evaluating voice quality, realizes the outer special number encoding speech signal test function of band.
The described method of testing that is used for evaluating voice quality, be applied to cordless communication network, may further comprise the steps: test center initiates test by tandem exchange, according to the route of appointment, make a call by the BICC signaling, and be looped back to test center, enter talking state, set up voice channel simultaneously, two-way transmission special number encoding speech signal, promptly the high-frequency signal of common touch-tone signal partly changes and the low frequency signal part is constant; According to the special number encoding speech signal of transmitting-receiving, single-pass, cross-talk and voice quality under this route of statistical analysis.
The described method of testing that is used for evaluating voice quality is set up in the loopback test passage in test center, according to specified circuit by in the synthetic called number of network element code set, form and call out loopback.
The described method of testing that is used for evaluating voice quality is implemented under the situation that does not need the whole network to dispose probe, can accomplish a bit to insert and finish the whole network test, and is irrelevant with Softswitch producer, is fit to cooperate test with all kinds of producers; The construction cost of reduction system and maintenance cost; But adopt the discriminating digit speech signal coding of special establishment, make this signal in different loading network, all in voice channel, transmit.Thereby realize the outer special number encoding speech signal test function of band, as voice index and MOS voice quality analysis such as single-pass, cross-talk, echoes.
Description of drawings
Fig. 1 is the network implementation structure chart of method of testing one embodiment of the present invention.
Fig. 2 is the network implementation structure chart of mobile service monitoring system.
Fig. 3 is the schematic flow sheet of method of testing of the present invention.
Fig. 4 is a digital speech testing schematic diagram.
Embodiment
Now, describe a preferred embodiment of the present invention in detail in conjunction with Figure of description.
Shown in Figure 2, mobile service monitoring system (being relaying type auto-dial testing system) is as test center, this mobile service monitoring system by with core net in signaling, traffic net direct-connected, simulation MSC/VLR function, realize professional emulation testing, as switch and circuit test, virtual net operational trials, Familiarity Number test, Ring Back Tone service test, short message service test etc.The tester is after the mobile service monitoring system is assigned test assignment, and system adopts the IAM message among the Signaling System Number 7 BICC to make a call, and concrete method of testing is as follows, referring to Fig. 1:
Pre-conditioned: suppose that professional monitoring system switch is numbered 999, SSA3 is numbered 187, and Hangzhou GS8 is numbered 108; Test caller: 17242001; Test called: 17240108187999.
Test route: mobile service monitoring system → soft switch A office (Hangzhou SSA3) → Hangzhou GS8 → soft switch A office (Hangzhou SSA3) → mobile service monitoring system (loopback).
Concrete steps: professional monitoring system makes a call and gives soft switch A office (Hangzhou SSA3), and caller is 17242001, and called is 17240108187999; SSA3 analyzes called prefix 17240 back 3 switches codings 108, and it be Hangzhou GS8 that inquiry obtains 108, then with after 108 removals of these 3 codings, with calling give Hangzhou GS8 (caller: 17242001, called: 17240187999); After Hangzhou GS8 receives calling, analyze back 3 switches coding 187 of called prefix 17240 equally, it be Hangzhou SSA3 that inquiry obtains 187, then with after 187 removals of these 3 codings, with calling give Hangzhou SSA3 (caller: 17242001, called: 17240999); SSA3 analyzes called prefix 17240 back 3 switches codings 999, and it be the mobile service monitoring system that inquiry obtains 999, then with after 999 removals of these 3 codings, with calling give the mobile service monitoring system (caller: 17242001, called: 17240); Call out and form loopback; BICC enters talking state after calling out loopback, sets up voice channel simultaneously, sends the special number encoding speech signal; According to the special number encoding speech signal of transmitting-receiving, situations such as single-pass, cross-talk and voice quality under this route of statistical analysis.
In the voice call process, produce discernible audio digital signals coding, audio digital signals is transmitted in voice channel, detect the audio digital signals waveform, identify corresponding digital coding at receiver side.Fundamental diagram as shown in Figure 4 when sending voice digital signal, produces the waveform signal of corresponding signal frequency by the audio digital signals generator; The special establishment of audio digital signals makes this signal in different loading network, all transmits in voice channel; The recipient, detect the digital speech that comprises in the voice signal by the audio digital signals detector.
For guaranteeing the reliable of audio digital signals transmission and identification and accurately, audio digital signals adopts the high and low frequency sinusoidal signal combination of dual-tone multifrequency.Worked out 16 digital speech signal codings at present altogether, the respective frequencies combination is as follows: low frequency signal is constant, only revises the high-frequency signal part, referring to table 1, table 2.So just formed special touch-tone signal, thereby realized the outer special number encoding speech signal test function of band, guaranteed that this signal in different loading network, all transmits in voice channel.
Table 1: special touch-tone signal
Table 2: common touch-tone signal
| 1209 | 1336 | 1477 | 1633 | |
| 697 | 1 | 2 | 3 | A |
| 770 | 4 | 5 | 6 | B |
| 852 | 7 | 8 | 9 | C |
| 941 | * | 0 | # | D |
Shown in Figure 3, evaluating voice quality testing procedure of the present invention mainly by the customization test assignment, initiate test, set up the tone testing passage and send digitized voice signal, statistical analysis digitized voice signal, form five steps such as speech quality evaluation report and form.Five step operations independently connect each other again.1) customization test assignment.Mainly be that the mode by artificial interpolation task is carried out on the mobile service monitoring system, selected different test mode, test number, executive mode and time etc., form test assignment; 2) initiate test.System initiates test by tandem exchange, according to the route of appointment, according to the synthetic called number of switch code set, makes a call by the BICC signaling, and is looped back to professional distributed-network monitoring platform automatically; 3) set up the tone testing passage and send digitized voice signal.System enters talking state after calling out loopback by BICC, sets up the tone testing passage simultaneously, two-way transmission digitized voice signal; 4) statistical analysis digitized voice signal.According to the digitized voice signal of transmitting-receiving, situations such as single-pass, cross-talk and voice quality under this route of statistical analysis; 5) form the speech quality evaluation report.According to the situation that the statistical analysis digitized voice signal obtains, gather the result of each test assignment, form report.
Hardware syndeton shown in Figure 1 is carried out a large amount of testings, and the each test of record digitized voice signal " sending the time " reaches " time of receipt (T of R) ", according to the digitized voice signal of transmitting-receiving, situations such as single-pass, cross-talk and voice quality under this route of statistical analysis; Be applicable in the different loading network, comprise that pure TDM carrying, pure IP carrying or TDM, IP mix networks such as carrying; Can travel through test to the whole network network element, be used to monitor each network element, whether each node device catastrophe failure occurs.
Method of testing of the present invention has following technological merit:
1, special touch-tone signal: revise common touch-tone signal---revise its high-frequency signal part and the low frequency signal part is constant, thereby realize the outer special number encoding speech signal test function of band, guarantee that this signal in the IP bearer network, transmits in voice channel.
2, the scope of application: be applicable in the different loading network, comprise that pure TDM carrying, pure IP carrying or TDM, IP mix the networks such as carrying.
3, some access: utilize the mobile service monitoring system, can accomplish a bit to access all webs' watch, only need in net, any point dispose a probe, and by specific algorithm, can monitor the voice quality between the whole network any two points.
4, digitize voice quality fast detecting: by the digitized voice signal of transmitting-receiving, the situations such as single-pass, cross-talk under this route of statistical analysis, and in conjunction with voice document analytical calculation and quantify speech quality PESQ value.
Claims (2)
1. a method of testing that is used for evaluating voice quality is applied to cordless communication network, may further comprise the steps:
Test center initiates test by tandem exchange, route according to appointment, make a call by the BICC signaling, and be looped back to test center, enter talking state, set up voice channel simultaneously, two-way transmission special number encoding speech signal, promptly the high-frequency signal of common touch-tone signal partly changes and the low frequency signal part is constant;
According to the special number encoding speech signal of transmitting-receiving, single-pass, cross-talk and voice quality under this route of statistical analysis.
2. the method for testing that is used for evaluating voice quality as claimed in claim 1 is characterized in that: set up in the loopback test passage in test center, according to specified circuit by in the synthetic called number of network element code set, form and call out loopback.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048590A1 (en) * | 2010-10-12 | 2012-04-19 | 中兴通讯股份有限公司 | Device, system and method for evaluating speech quality in radio communications |
| CN102612062A (en) * | 2011-01-20 | 2012-07-25 | 飞思达技术（北京）有限公司 | Method for testing and analyzing unipath of soft switch system |
| CN104254086A (en) * | 2013-06-27 | 2014-12-31 | 珠海世纪鼎利通信科技股份有限公司 | Voice MOS testing loop-back recording and playing method and system |
| CN107277278A (en) * | 2016-04-08 | 2017-10-20 | 中兴通讯股份有限公司 | A kind of voice quality method of testing and terminal |
| CN108566496A (en) * | 2017-11-24 | 2018-09-21 | 厦门集微科技有限公司 | The method and apparatus for monitoring speech line state |
| CN108882291A (en) * | 2018-08-30 | 2018-11-23 | 中国联合网络通信集团有限公司 | Speech quality assessment method and device |
| CN114979814A (en) * | 2021-09-07 | 2022-08-30 | 中移互联网有限公司 | Dialing detection method and device under dual-tone multi-frequency-band transmission scene and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101035159A (en) * | 2007-02-12 | 2007-09-12 | 中国移动通信集团浙江有限公司 | Dialed monitoring system for the troubleshooting of the communication network and its monitoring method |
| CN101052066A (en) * | 2007-05-22 | 2007-10-10 | 杭州华三通信技术有限公司 | Detecting method for prompting voice, voice server and prompting voice detector |
-
2008
- 2008-12-18 CN CN200810163359.5A patent/CN101437247B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101035159A (en) * | 2007-02-12 | 2007-09-12 | 中国移动通信集团浙江有限公司 | Dialed monitoring system for the troubleshooting of the communication network and its monitoring method |
| CN101052066A (en) * | 2007-05-22 | 2007-10-10 | 杭州华三通信技术有限公司 | Detecting method for prompting voice, voice server and prompting voice detector |
Non-Patent Citations (1)
| Title |
|---|
| ASTRECIPES: "《AstRecipes-Changing DTMF tone frequency in Asterisk, Version 2》", 22 February 2007, ASTRECIPES.NET/INDEX.PHP?N=248 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048590A1 (en) * | 2010-10-12 | 2012-04-19 | 中兴通讯股份有限公司 | Device, system and method for evaluating speech quality in radio communications |
| CN102612062A (en) * | 2011-01-20 | 2012-07-25 | 飞思达技术（北京）有限公司 | Method for testing and analyzing unipath of soft switch system |
| CN104254086A (en) * | 2013-06-27 | 2014-12-31 | 珠海世纪鼎利通信科技股份有限公司 | Voice MOS testing loop-back recording and playing method and system |
| CN104254086B (en) * | 2013-06-27 | 2018-07-24 | 珠海世纪鼎利科技股份有限公司 | A kind of voice MOS tests winding record/playback method and system |
| CN107277278A (en) * | 2016-04-08 | 2017-10-20 | 中兴通讯股份有限公司 | A kind of voice quality method of testing and terminal |
| CN107277278B (en) * | 2016-04-08 | 2021-02-23 | 中兴通讯股份有限公司 | Voice quality testing method and terminal |
| CN108566496A (en) * | 2017-11-24 | 2018-09-21 | 厦门集微科技有限公司 | The method and apparatus for monitoring speech line state |
| CN108882291A (en) * | 2018-08-30 | 2018-11-23 | 中国联合网络通信集团有限公司 | Speech quality assessment method and device |
| CN108882291B (en) * | 2018-08-30 | 2021-08-13 | 中国联合网络通信集团有限公司 | Voice quality evaluation method and device |
| CN114979814A (en) * | 2021-09-07 | 2022-08-30 | 中移互联网有限公司 | Dialing detection method and device under dual-tone multi-frequency-band transmission scene and electronic equipment |
| CN114979814B (en) * | 2021-09-07 | 2023-09-05 | 中移互联网有限公司 | Dialing detection method and device under double-tone multi-band internal transmission scene and electronic equipment |
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