CN103780770A - Crosstalk detecting method and device - Google Patents
Crosstalk detecting method and device Download PDFInfo
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- CN103780770A CN103780770A CN201210412946.XA CN201210412946A CN103780770A CN 103780770 A CN103780770 A CN 103780770A CN 201210412946 A CN201210412946 A CN 201210412946A CN 103780770 A CN103780770 A CN 103780770A
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Abstract
The invention relates to the core network technical field and provides a crosstalk detecting method and a crosstalk detecting device. The objective of the invention is to solve the problem of incapability of a crosstalk detecting method to detect crosstalk faults in an IP network, wherein the crosstalk detecting method adopts a relay dial testing mode. According to the embodiment of the invention, under a crosstalk situation in which one party of a calling party and a called party hear voice communication of other people while the other party cannot hear any sound in voice communication, after it is determined that voice signal energy received by one party of a calling terminal and a called terminal is zero, whether crosstalk occurs is determined through judging whether voice features of voice signals received by the other party of the a calling terminal and the called terminal change or not, and therefore, crosstalk in the IP network can be automatically detected, and either crosstalk generated on a wireless channel between a user terminal and a wireless network or crosstalk which is generated between the wireless network and a core network and is generated by equipment of the core network itself can be detected.
Description
Technical field
The present invention relates to core network technology field, relate in particular to a kind of crosstalk detecting method and device.
Background technology
In current communication system, exist in calling party in communication process or callee and have a side to hear the situation of other people call except partner, this situation is called as cross-talk.Occurring in the call of cross-talk, there to be a side to hear that other people converse and the opposing party cannot hear that the situation of sound is the most general in both call sides.
In traditional time division multiplexing (Time Division Multiplexing, TDM) network, can, by accounting for the method for trunk dialing test, detect and whether have line errors to cause cross-talk.But, along with introducing and the development of network IPization of the soft-exchange constructions such as core network, TDM circuit in network is substituted by IP circuit gradually, and traditional trunk dialing test method that accounts for cannot detect the cross talk that line errors causes, needs new method to detect the cross-talk in IP network.
In prior art, can send by contrast terminal whether Traffic Channel that the shared Traffic Channel of message and network side distribute for this terminal is consistent judges whether to have occurred the cross-talk of eating dishes without rice or wine, but, owing to occurring that the situation of cross-talk fault has a lot, voice signal in transmitting procedure multiple equipment and the interface of process all likely produce cross-talk, this technology can only detect cross-talk when producing cross-talk on the wireless channel between wireless network at user terminal, cannot be in terminal self, wireless network is between core net and when each equipment of core net self produces cross-talk, cross-talk is detected.
In to the research and practice of prior art, find that prior art at least exists following problem: the means that the mode that traditional employing accounts for trunk dialing test is carried out cross-talk detection can not detect the cross-talk fault in IP network; The means that the mode of the employing contrast Traffic Channel that prior art provides is carried out cross-talk detection cannot, at terminal self, wireless network between core net and when each equipment of core net self produces cross-talk, detect cross-talk.
Summary of the invention
The embodiment of the present invention provides a kind of crosstalk detecting method and device, in order to solve the problem that cannot detect the cross-talk fault in IP network in prior art and cannot be at terminal self, wireless network between core net and when each equipment of core net self produces cross-talk, the problem that cross-talk is detected.
The method that the embodiment of the present invention provides comprises:
After determining that the speech signal energy that has a side to receive in calling terminal and terminal called is zero, relatively the opposing party is being whether phonetic feature corresponding with the voice signal receiving in the second setting-up time length afterwards in the first setting-up time length before 1 o'clock is consistent from described speech signal energy;
In the time that described phonetic feature is inconsistent, determines cross-talk has occurred.
Preferably, determine that according to following steps the speech signal energy that whether has a side to receive in calling terminal and terminal called is zero:
Medium stream information to calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in the described moment in calling terminal and terminal called is zero.
Preferably, determine according to the following step phonetic feature corresponding to voice signal receiving in the second setting-up time length in described speech signal energy is the first setting-up time length before 1 o'clock and afterwards:
From determining the medium stream information of calling terminal and terminal called call that the opposing party is from described speech signal energy being the medium stream information receiving in the second setting-up time length in the first setting-up time length before 1 o'clock and afterwards;
From the described medium stream information of determining, extract phonetic feature.
Preferably, described method also comprises:
Occur after cross-talk in the call of determining calling terminal and terminal called, stored the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
The device that the embodiment of the present invention provides comprises:
Comparison module, for after determining that speech signal energy that calling terminal and terminal called have a side to receive is zero, relatively the opposing party is being whether phonetic feature corresponding with the voice signal receiving in the second setting-up time length afterwards in the first setting-up time length before 1 o'clock is consistent from described speech signal energy
Determination module, in the time that described phonetic feature is inconsistent, determines cross-talk has occurred.
Preferably, described comparison module, specifically for the medium stream information of calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in the described moment in calling terminal and terminal called is zero.
Preferably, described comparison module, specifically for from determining the medium stream information of calling terminal and terminal called call that the opposing party is from described speech signal energy being the medium stream information receiving in the second setting-up time length in the first setting-up time length before 1 o'clock and afterwards; From the described medium stream information of determining, extract phonetic feature.
Preferably, described device also comprises memory module, for having occurred after cross-talk in the call of determining calling terminal and terminal called, stores the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
The embodiment of the present invention is in call, after determining that the speech signal energy that has a side to receive in calling terminal and terminal called is zero, by judging whether the phonetic feature of voice signal that the opposing party receives changes to determine whether to have occurred cross-talk, adopt method and the device of the embodiment of the present invention can automatically detect the cross-talk in IP network, save human cost, shorten the time of fault discovery and location, no matter be to produce cross-talk at user terminal to the wireless channel between wireless network, or wireless network between core net and each equipment of core net self produce cross-talk, cross-talk can be detected, thereby the personnel that maintain easily find fault and deal with problems prior to user.
Accompanying drawing explanation
The crosstalk detecting method flow chart that Fig. 1 provides for the embodiment of the present invention;
The preferred embodiment flow chart of the crosstalk detecting method that Fig. 2 provides for the embodiment of the present invention;
The cross-talk checkout gear schematic diagram of Fig. 3 for providing for the embodiment of the present invention.
Embodiment
The embodiment of the present invention is for there being a side to hear that other people converse and the opposing party cannot hear the situation of sound in the calling party who occurs in call and callee, after determining that the speech signal energy that has a side to receive in calling terminal and terminal called is zero, by judging whether the phonetic feature of voice signal that the opposing party receives changes to determine whether to have occurred cross-talk, adopt method and the device of the embodiment of the present invention can automatically detect the cross-talk in IP network, save human cost, shorten the time of fault discovery and location, no matter be to produce cross-talk at user terminal to the wireless channel between wireless network, or wireless network between core net and each equipment of core net self produce cross-talk, cross-talk can be detected, thereby the personnel that maintain easily find fault and deal with problems prior to user.
As shown in Figure 1, be the crosstalk detecting method flow chart that the embodiment of the present invention provides, comprising:
S101: determine that the speech signal energy that has a side to receive in calling terminal and terminal called is zero.
S102: relatively in the first setting-up time length of the opposing party before the speech signal energy receiving from a side is 1 o'clock, whether the phonetic feature corresponding with the voice signal receiving in the second setting-up time length be afterwards consistent; If inconsistent, determine cross-talk has occurred.
Here, after determining that the speech signal energy of calling terminal reception is zero, relatively whether terminal called phonetic feature corresponding with the voice signal receiving in the second setting-up time length in the first setting-up time length be consistent, if inconsistent, can determine cross-talk has occurred, and the situation of cross-talk appears at terminal called; Accordingly, after the speech signal energy that terminal called receives is zero, relatively whether calling terminal phonetic feature corresponding with the voice signal receiving in the second setting-up time length in the first setting-up time length be consistent, if inconsistent, can determine cross-talk has occurred, and the situation of cross-talk appears at calling terminal;
The medium stream information is here to embody with the form of speech code stream.
The first setting-up time length and the second setting-up time length are set according to actual conditions or simulation result, such as, in the time determining that the speech signal energy that has a side to receive at moment t in calling terminal and terminal called is zero, t >=0ms, can compare the opposing party in the first setting-up time length, be t to t-m period and the second setting-up time length, whether the phonetic feature that voice signal that t received to the t+n period is corresponding consistent, wherein, m, n >=0ms, preferably, m equals n.
Preferably, determine that according to following steps the speech signal energy that whether has a side to receive in calling terminal and terminal called is zero:
Medium stream information to calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in this moment in calling terminal and terminal called is zero.
In specific implementation process, first gather the voice messaging of calling terminal and terminal called call, the voice messaging here comprises the medium stream information of calling terminal and terminal called etc.Voice messaging acquisition technique has various ways, such as, can utilize Switched Port Analyzer to carry out voice messaging collection on core-network side IP network switch, can realize the voice messaging collection of the network whole process from user terminal to core net.
In order to detect in time the generation that has or not cross-talk scenario, can set sampling frequency, regularly the medium stream information of calling terminal and terminal called call is sampled, and the medium stream information after sampling is carried out waveform and presented, present speech signal energy waveform, speech signal energy waveform can embody speech signal energy situation over time, if be zero a moment speech signal energy, can determine that the speech signal energy that has a side to receive in this moment in calling terminal and terminal called is zero.And, from the medium stream information of calling terminal and terminal called call, can identify calling terminal or terminal called is zero in the speech signal energy of this moment reception, after the phonetic feature that compares the opposing party changes, can judge that what occur cross-talk scenario is calling terminal or terminal called.Such as, when determining that calling terminal is in the time that the speech signal energy of moment t reception is zero, whether can comparing terminal called, to arrive to t-m period and t the phonetic feature that voice signal that the t+n period receives is corresponding at the t setting consistent, if inconsistent, determine that what occur cross-talk scenario is terminal called, otherwise, just there is not cross-talk; Accordingly, when determining that terminal called is in the time that the speech signal energy of moment t reception is zero, whether unanimously can compare the phonetic feature that voice signal that calling terminal receives to t-m period and t to the t+n period at t is corresponding, if inconsistent, determine that what occur cross-talk scenario is calling terminal, otherwise, just there is not cross-talk.
Preferably, determine that according to the following step the speech signal energy receiving from a side is phonetic feature corresponding to voice signal receiving in the second setting-up time length in the first setting-up time length before 1 o'clock and afterwards:
From the medium stream information of calling terminal and terminal called call, determine the medium stream information receiving in the second setting-up time length in the first setting-up time length before the opposing party is the speech signal energy receiving from a side is and afterwards at 1 o'clock;
From the medium stream information of the first definite setting-up time length and the second setting-up time length, extract phonetic feature.
Here, because the medium stream information of calling terminal and terminal called call is the medium stream information of whole communication process, first the medium stream information that need to determine the opposing party except the side that wherein received speech signal energy is zero in the first setting-up time length and in the second setting-up time length in the medium stream information of whole communication process, this part medium stream information can be intercepted out, afterwards, from this part medium stream information, extract phonetic feature.
Preferably, phonetic feature can be one or more in following characteristics:
The frequency information of voice signal, the strength information of voice signal etc.
Here, in the time of frequency information that phonetic feature is voice signal, can, in the time that the frequency information of voice signal changes, determine cross-talk has occurred;
Here, in the time that the phonetic feature corresponding to voice signal of calling terminal or terminal called reception changes, can determine cross-talk has occurred, concrete, in the time of frequency information that phonetic feature is voice signal, can, in the time that the frequency information corresponding to medium stream information of calling terminal or terminal called reception changes, determine cross-talk has occurred; In the time of strength information that phonetic feature is voice signal, when the strength information corresponding to medium stream information that can receive at calling terminal or terminal called changes, determine cross-talk has occurred; In the time of the phonetic feature frequency that is voice signal and strength information, when the frequency information that the medium stream information that can receive at calling terminal or terminal called is corresponding and strength information all change, determine cross-talk has occurred, when the frequency information that the medium stream information that also can receive at calling terminal or terminal called is corresponding or strength information change, determine cross-talk has occurred.
In concrete enforcement, can adopt speech recognition technology to extract phonetic feature, comprise Mel frequency cepstrum coefficient (Mel Frequency Cepstrum Coefficient, MFCC) speech recognition technology and linear prediction cepstrum coefficient coefficient (Linear Predictive Cepstral Coding, LPCC) speech recognition technology, vowel intensity and first voice frequency that these two kinds of speech recognition technologies are all the voice signals based on extracted are identified phonetic feature.
Preferably, occur after cross-talk in the call of determining calling terminal and terminal called, stored the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
Here, the information that cross-talk reason occurs for carrying out fault location and analysis of storage can be any voice messaging of this call, particularly, can be one or more of following voice messaging:
Medium stream information; The identify label of calling terminal and terminal called; The start and end time of this call; There is the moment of cross-talk; There is the speech signal energy waveform in cross-talk time span; Address and the port information etc. of medium stream information place equipment while there is cross-talk;
As shown in Figure 2, the preferred embodiment flow chart of the crosstalk detecting method providing for the embodiment of the present invention, comprising:
S201: the medium stream information to the call of calling terminal and terminal called is sampled, and the medium stream information after sampling is carried out to speech signal energy waveform present;
In specific implementation process, first gather the voice messaging of calling terminal and terminal called call, the voice messaging here comprises medium stream information and both sides' the identify label etc. of calling terminal and terminal called call, voice messaging acquisition technique has various ways, such as, can utilize Switched Port Analyzer to carry out voice messaging collection on core-network side IP network switch, can realize the voice messaging collection of the network whole process from user terminal to core net.Can set sampling frequency, such as, setting sampling frequency is 8KHZ, regularly the medium stream information of calling terminal and terminal called call is sampled with the frequency of 8KHZ, and the medium stream information after sampling is carried out waveform and presented, present speech signal energy waveform.
S202: judge that according to the speech signal energy waveform presenting the speech signal energy that whether has a side to receive a moment in calling terminal and terminal called is zero, if so, enter step S203, otherwise, think cross-talk does not occur;
Here, because current cross-talk scenario is generally, in calling terminal and terminal called, there is a side to hear that other people converse and the opposing party cannot hear sound, for this situation, be zero when judging the speech signal energy that has a side to receive a moment in calling terminal and terminal called, the situation that has likely occurred cross-talk the opposing party is described, such as, be zero when judging calling terminal in the speech signal energy of moment t reception, illustrate that the situation of cross-talk has likely appearred in terminal called.Otherwise, if speech signal energy waveform is always normal, illustrate that calling terminal and terminal called are always in call, can think and not occur the situation of cross-talk.
S203: determine the medium stream information receiving in the second setting-up time length in the first setting-up time length before the opposing party is the speech signal energy receiving from a side is and afterwards from the medium stream information of calling terminal and terminal called call at 1 o'clock;
Here, when determining that calling terminal is in the time that the speech signal energy of moment t reception is zero, can in the medium stream information of calling terminal and terminal called call, intercept terminal called in the first setting-up time length, be that t is to t-m period and the second setting-up time length, the medium stream information that t received to the t+n period.
S204: respectively extract phonetic feature the medium stream information receiving from definite the opposing party in the first setting-up time length and in the second setting-up time length;
In concrete enforcement, can adopt speech recognition technology to extract phonetic feature, comprise Mel frequency cepstrum coefficient (Mel Frequency Cepstrum Coefficient, MFCC) speech recognition technology and linear prediction cepstrum coefficient coefficient (Linear Predictive Cepstral Coding, LPCC) speech recognition technology, vowel intensity and first voice frequency that these two kinds of speech recognition technologies are all the voice signals based on extracted are identified phonetic feature.
S205: whether unanimously compare phonetic feature corresponding to these two time spans, if inconsistent, enter step 206, otherwise, determine cross-talk does not occur;
S206: determine cross-talk has occurred, store the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs;
Here, storage can be any voice messaging of this call for carrying out fault location and analyzing the information that cross-talk reason occurs, such as, can be one or more of following voice messaging:
Medium stream information; The identify label of calling terminal and terminal called; The start and end time of this call; There is the moment of cross-talk; There is the speech signal energy waveform in the cross-talk time period; Address and the port etc. of medium stream information place equipment while there is cross-talk;
Based on same inventive concept, the embodiment of the present invention also provides the cross-talk checkout gear that a kind of and aforementioned crosstalk detecting method is corresponding, because the principle that these devices are dealt with problems is similar to aforementioned crosstalk detecting method, therefore the enforcement of this device can be referring to the enforcement of preceding method, repeats part and repeat no more.
The cross-talk checkout gear of the embodiment of the present invention can be deployed in wireless network to the interface between core net, to facilitate the voice messaging gathering between core net and wireless network, voice messaging acquisition technique can have various ways, such as, can utilize Switched Port Analyzer to carry out voice messaging collection on core-network side IP network switch, realize the voice messaging collection of the network whole process from user terminal to core net, and carry out cross-talk detection for these voice messagings.
As shown in Figure 3, be the cross-talk checkout gear schematic diagram that the embodiment of the present invention provides, comprising:
Preferably, comparison module 31, specifically for the medium stream information of calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in this moment in calling terminal and terminal called is zero.
Preferably, comparison module 31, specifically for the medium stream information receiving in the second setting-up time length in the first setting-up time length before definite the opposing party from the medium stream information of calling terminal and terminal called call is the speech signal energy receiving from a side is 1 o'clock and afterwards; From definite medium stream information, extract phonetic feature.
Preferably, comparison module 31 phonetic feature relatively comprises frequency and/or the strength information of voice signal.
Preferably, described device also comprises memory module 33, for having occurred after cross-talk in the call of determining calling terminal and terminal called, stores the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
Those skilled in the art should understand, embodiments of the invention can be provided as method, device or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, device (equipment) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing unit to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing unit produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing unit with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing unit, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a crosstalk detecting method, is characterized in that, the method comprises:
After determining that the speech signal energy that has a side to receive in calling terminal and terminal called is zero, relatively the opposing party is being whether phonetic feature corresponding with the voice signal receiving in the second setting-up time length afterwards in the first setting-up time length before 1 o'clock is consistent from described speech signal energy;
In the time that described phonetic feature is inconsistent, determines cross-talk has occurred.
2. the method for claim 1, is characterized in that, determines that according to following steps the speech signal energy that whether has a side to receive in calling terminal and terminal called is zero:
Medium stream information to calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in the described moment in calling terminal and terminal called is zero.
3. method as claimed in claim 1 or 2, it is characterized in that, determine phonetic feature corresponding to voice signal receiving in the second setting-up time length in described speech signal energy is the first setting-up time length before 1 o'clock and afterwards according to the following step:
From determining the medium stream information of calling terminal and terminal called call that the opposing party is from described speech signal energy being the medium stream information receiving in the second setting-up time length in the first setting-up time length before 1 o'clock and afterwards;
From the described medium stream information of determining, extract phonetic feature.
4. method as claimed in claim 3, is characterized in that, described phonetic feature comprises frequency and/or the strength information of voice signal.
5. the method as described in claim 1,2 or 4, is characterized in that, described method also comprises:
Occur after cross-talk in the call of determining calling terminal and terminal called, stored the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
6. a cross-talk checkout gear, is characterized in that, this device comprises:
Comparison module, for after determining that speech signal energy that calling terminal and terminal called have a side to receive is zero, relatively the opposing party is being whether phonetic feature corresponding with the voice signal receiving in the second setting-up time length afterwards in the first setting-up time length before 1 o'clock is consistent from described speech signal energy
Determination module, in the time that described phonetic feature is inconsistent, determines cross-talk has occurred.
7. device as claimed in claim 6, it is characterized in that, described comparison module, specifically for the medium stream information of calling terminal and terminal called call is sampled, if the speech signal energy that the medium stream information after sampling presents is zero a moment, determine that the speech signal energy that has a side to receive in the described moment in calling terminal and terminal called is zero.
8. the device as described in claim 6 or 7, it is characterized in that, described comparison module, specifically for from determining the medium stream information of calling terminal and terminal called call that the opposing party is from described speech signal energy being the medium stream information receiving in the second setting-up time length in the first setting-up time length before 1 o'clock and afterwards; From the described medium stream information of determining, extract phonetic feature.
9. device as claimed in claim 8, is characterized in that, the phonetic feature of described comparison module comparison comprises frequency and/or the strength information of voice signal.
10. the device as described in claim 6,7 or 9, it is characterized in that, described device also comprises memory module, for having occurred after cross-talk in the call of determining calling terminal and terminal called, store the medium stream information of this call, for carrying out fault location and analyzing the reason that cross-talk occurs.
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| CN106504768A (en) * | 2016-10-21 | 2017-03-15 | 百度在线网络技术（北京）有限公司 | Phone testing audio frequency classification method and device based on artificial intelligence |
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