CN101079754A - A method and device for voice stream detection - Google Patents
A method and device for voice stream detection Download PDFInfo
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- CN101079754A CN101079754A CNA2007101113651A CN200710111365A CN101079754A CN 101079754 A CN101079754 A CN 101079754A CN A2007101113651 A CNA2007101113651 A CN A2007101113651A CN 200710111365 A CN200710111365 A CN 200710111365A CN 101079754 A CN101079754 A CN 101079754A
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Abstract
The invention discloses a testing method of voice flow, which comprises the following steps: checking two strips of data flow of one two-directional communicating end within preset time segment; comparing the quantity of data pack of two data flows with the quantity scale of data pack; affirming the bearing data flow as voice flow if the quantity of data pack of two data flows is in the quantity scale of the set data pack. The invention can test the voice flow timely and accurately, which also provides a testing device of the voice flow.
Description
Technical field
The present invention relates to the network communications technology, particularly a kind of method and apparatus that detects voice flow.
Background technology
Along with popularizing of network, Internet protocol transferring voice (VoIP:Voice over Internet Protocol) technology is also in develop rapidly, voip technology is based on the voice transmission technology of IP, utilize corresponding speech coding algorithm with voice digitization, and the data after will encoding are packed, pass to the destination by IP network, destination obtains voice through the decoding reduction then.
G.729 audio coding mode commonly used at present mainly is, G.723.1, and three kinds of GSM.G.729 with G.723.1 be International Telecommunications Union's transmission tissue (ITU-T:International TelecommunicationUnion-Transmission) formulate be applicable to the IP phone speech coding because its high-quality, low code check and being used widely.Wherein, G.729 its code rate is 8kbps, G.723.1 is the dual rate speech coding, and it can be encoded into 5.3kbps and two kinds of speed of 6.3kbps; And global system for mobile communications (GSM:Global System for Mobile Communications) coding adopts subjective weighted least mean square error criterion, thereby approach the raw tone waveform, has naturalness preferably, and it is insensitive to the many people of the noise level environment of talking, it adopts measures such as long-term prediction, log area ratio quantification, it is operated in obtains goodish synthetic speech quality on the 13kbps speed.
These three kinds of coded systems all are frame coding modes, and promptly the voice flow behind the coding exists with the form of a bit of frame, and each segment is all represented the voice of certain hour, and are that unit propagates and decodes with the frame, such as: per second 100 frames are the conversation that every frame is represented 10ms.
Following table is to the comparison of three kinds of audio coding modes:
| Title | Bit rate (kb/s) | The input byte/frame | Output byte/frame | Frame number/s |
| G.729 | 8 | 160 | 10 | 100 |
| G.723.1 | 5.3/6.3 | 480 | 20/24 | 33 |
| GSM | 13 | 320 | 33 | 50 |
Yet be accompanied by the development of voip technology, a large amount of virtual operators utilizes voip technology to carry out the phone operation on the internet privately, therefrom seek exorbitant profit, the fixed telephone service of telecom operators has been produced huge impact, particularly domestic, international long-distance service are caused huge impact.Simultaneously,, thereby also make a large amount of offenders to exchange by so private phone and can not supervised fully, cause serious harm to social security because underground operation privately lacks effective supervision.Therefore the behavior of this private voip phone is supervised and become problem demanding prompt solution.
At present, operator is hit the virtual operator of private VoIP by multiple strategy, comprises the IP that seals these virtual operator's servers, VoIP stream is disturbed etc.Wherein, envelope IP is the most effective means, is that the VoIP data flow just seems of crucial importance yet how to analyze and which is judged from network traffics.
As shown in Figure 1, in the schematic diagram of existing detection voice flow, what at first need full flow obtains net A and the data flow of net between the B, the voice flow that obtains is analyzed, judge it is the packet of what type according to the characteristic value of data packets in data flows, could determine further that the VoIP voice flow still is other data flow.Begin with 8012 such as the UDP load as if the packet of catching, the characteristics of sequence number and timestamp position also meet G.729 coded system, just think that this packet is the VoIP voice packet.
But privately owned VoIP agreement is adopted in the virtual operation commercial city of the overwhelming majority now, revised the feature of packet, and there are a lot of companies to be engaged in the exploitation of privately owned VoIP agreement, therefore this feature and standard that wherein neither one is unified is carried out judgment mode by the packet feature and can not accurately have been detected voice flow.
In sum,, make that the step that detects voice flow is very loaded down with trivial details, can not detect in time, exactly through amended packet by the method for packet sheet feature detection voice flow.
Summary of the invention
A kind of method and apparatus that detects voice flow that the embodiment of the invention provides is in order to solve the problem that can not detect voice flow in time, exactly that prior art exists.
A kind of method that detects voice flow comprises:
In the predefined time period, check two data flow of communication one end twocouese;
The quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared, if the quantity of data packets of described two data flow is in the quantitative range of described predefined transfer data packets, what then determine described data flow carrying is voice flow.
A kind of device that detects voice flow comprises:
First judge module, be used for checking in the predefined time period data packet number of two data flow of communication one end twocouese, whether the data packet number of two data flow of judging described communication one end twocouese is all in the quantitative range of the transfer data packets of setting;
Determination module is used in the scope of the data packet number that the data packet number that described first judge module is judged described two data flow is all being set the time, and what determine described data flow carrying is voice flow.
The embodiment of the invention is checked two data flow of communication one end twocouese in the predefined time period; The quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared, if the quantity of data packets of described two data flow is in the quantitative range of described predefined transfer data packets, what then determine described data flow carrying is voice flow, thereby simplified the step that detects voice flow, improved the speed and the accuracy that detect voice flow.
Description of drawings
Fig. 1 detects the schematic diagram of voice flow for prior art;
The apparatus structure schematic diagram of the detection voice flow that Fig. 2 provides for the embodiment of the invention;
Fig. 3 detects the environment schematic diagram of voice flow for the embodiment of the invention;
Fig. 4 is for containing the contrast schematic diagram of one or more voice flow in the embodiment of the invention data flow;
Fig. 5 detects the method flow schematic diagram of voice flow for the embodiment of the invention;
The method flow schematic diagram that contains a voice flow in the data flow that Fig. 6 determines to obtain for the embodiment of the invention;
The method flow schematic diagram that contains many voice flows in the data flow that Fig. 7 determines to obtain for the embodiment of the invention.
Embodiment
At the problem that can not detect voice flow in time, exactly that prior art exists, the embodiment of the invention is checked two data flow of communication one end twocouese in the predefined time period; The quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared, if the quantity of data packets of described two data flow is in the quantitative range of described predefined transfer data packets, what then determine described data flow carrying is voice flow, thereby has solved the problems referred to above.
As shown in Figure 2, the device of the detection voice flow that provides of the embodiment of the invention comprises: first judge module 10 and determination module 20.
First judge module 10, be connected with determination module 20, be used in the predefined time period, checking, the communicate by letter data packet number of two data flow of an end twocouese, whether the data packet number of two data flow of judging described communication one end twocouese is all in the scope of the data packet number of setting.
Determination module 20 is connected with first judge module 10, be used for when first judge module 10 is judged in the scope of the data packet number that the data packet number of two data flow is all being set, the carrying of specified data stream be voice flow.
Wherein, if preestablish a coded system, then first judge module 10 comprises: first configuration module 100 and first processing module 110.
First configuration module 100 is connected with first processing module 110, is used for when having set a coded system, determines the quantitative range of coded system transfer data packets according to the coded system of setting.
First processing module 110, be connected with first configuration module 100, be used in the predefined time period, whether the data packet number of two data flow of checking communication one end twocouese is all in the quantitative range of the coded system transfer data packets that first configuration module 100 is determined, if what then determination module 20 was determined two data flow carryings is voice flow; Otherwise what determination module 20 was determined two data flow carryings is that non-voice flows.
Wherein, if set in advance at least two coded systems, then first judge module 10 comprises: second configuration module 120 and second processing module 130.
Second configuration module 120 is connected with second processing module 130, is used for when having set at least two coded systems, determines the quantitative range of each coded system transfer data packets at least according to described two coded systems;
Second processing module 130, be connected with second configuration module 120, be used in the predefined time period, whether the data packet number of each bar data flow of checking communication one end twocouese is at least all in the quantitative range of any one coded system transfer data packets that second configuration module 120 is determined, if what then determination module 20 was determined two data flow carryings is voice flow; Otherwise what determination module 20 was determined two data flow carryings is non-voice.
In addition, first judge module 10 also can comprise first configuration module 100, first processing module 110, second configuration module 120 and second processing module 130, then, can detect voice flow no matter a coded system is set still sets at least two coded systems.
Wherein, two stream can be in the scope that the same-code mode is determined, also can be in the scope that the different coding mode is determined.
First configuration module 100 is quantitative ranges of determining the coded system transfer data packets according to following formula:
The frame of the frame of transmission and a packet carrying is the frame of same-code mode after encoding in the setting-up time section.
Such as: coded system at present commonly used for G.729, G.723.1 and GSM.
| Title | The quantity of each bag load carrying frame | Frame number/s |
| G.729 | 1-4 | 100 |
| G.723.1 | 1-2 | 33 |
| GSM | 1-2 | 50 |
With above-mentioned three coded systems is example, then G.729 the quantitative range of coded system transfer data packets should for:
G.723.1 the quantitative range of coded system transfer data packets should for:
The quantitative range of GSM coded system transfer data packets should for:
G.723.1 and GSM if G.729 the coded system of setting has only,, quantitative range that then can also top three transfer data packets synthesize one:
Comprise the data flow of multiple form in two of an end twocouese data flow if communicate by letter, then first configuration module 100 is determined the quantitative range of coded system transfer data packets according to following formula:
Wherein, the coefficient sum of each coded system is the bar number that comprises stream in the data flow, a
iBe the minimum value of i coded system transfer data packets quantity, b
iIt is the maximum of i coded system transfer data packets quantity.
Such as: set two kinds of coded systems, and comprised 3 streams, the then scope of data packet number in the data flow:
a
1* n
1+ a
2* n
2The quantity of the quantity≤transfer data packets of packet discard in the-setting-up time section
≤ b
1* n
1+ b
2* n
2The time-delay of+setting-up time section internal cause increases quantity of data packets
n
1, n
2Be coefficient, and n
1+ n
2=3
G.723.1 and GSM, then above-mentioned formula can also be simplified if G.729 the coded system of setting has only:
Wherein, m is the bar number that comprises stream in the data flow.
Second configuration module 120 is determined the quantitative range of each coded system transfer data packets, determines that with first configuration module 100 quantitative range of coded system transfer data packets is identical, just no longer repeats here.
The device of the detection voice flow that the embodiment of the invention provides also further comprises: second judge module 30.
Second judge module 30 is connected with first judge module 10, is used for checking in the predefined time period whether two data flow of communication one end twocouese are respectively upstream and downstream data flow.
Then first judge module 10 is when second judge module 30 determines that two data flow are upstream and downstream data flow respectively, two data flow of checking communication one end twocouese in the predefined time period.
Wherein, second judge module 30 also comprises: first module 300, second module 310 and the three module 320.
Three module 320, be connected with second module 310 with first module 300, be used for determining the source address of a data flow of two data flow of communication one end twocoueses and destination address and the destination slogan that source port number is another data flow in first module 300, and when second module 310 determines that the protocol type of two data flow is identical, determine that the data flow of communication one end twocouese is respectively upstream and downstream data flow.
Upstream and downstream data flow are meant a complete connection of communicating pair, and this connection is represented by a five-tuple that usually five-tuple is source address, destination address, source port, destination interface and protocol type.
As shown in Figure 3, the embodiment of the invention detects in the environment schematic diagram of voice flow, the device that detects voice flow only need obtain the data flow that transmits in the network according in the predefined time period, and according to whether voice-bearer flows in the quantity judgment data stream of data packets in data flows.
Wherein, can be in needs or the cycle of setting, the device of detection trigger voice flow obtains the data flow that transmits in the network.
As shown in Figure 4, contain in the embodiment of the invention data flow in the contrast schematic diagram of one or more voice flow, data flow can contain one or more voice flow as required, and event data stream contains many voice flows, then according to how much bar stream is arranged in the stream of the critical field recognition data in the packet.
As shown in Figure 5, the method for embodiment of the invention detection voice flow comprises the following steps:
Wherein, in the step 500, can be in needs or the cycle of setting, obtain two data flow of twocouese.
After the step 500, can also check earlier before the step 501 whether two data flow of communication one end twocouese are respectively upstream and downstream data flow, if then execution in step 501; Otherwise, return step 500.
Upstream and downstream data flow are meant a complete connection of communicating pair, and this connection is represented by a five-tuple that usually five-tuple is source address, destination address, source port, destination interface and protocol type.
If wherein source address in data flow and source port number are destination address and the destination slogans in another data flow, and the protocol type of two data flow is identical, determine that then two data flow are respectively upstream and downstream data flow.
The quantity of data packets scope of setting in the step 501 can be determined according to following formula:
The frame of the frame of transmission and a packet carrying is the frame of same-code mode after encoding in the predefined time period.
Such as: coded system at present commonly used for G.729, G.723.1 and GSM.
| Title | The quantity of each bag load carrying frame | Frame number/s |
| G.729 | 1-4 | 100 |
| G.723.1 | 1-2 | 33 |
| GSM | 1-2 | 50 |
With above-mentioned three coded systems is example, then G.729 the quantitative range of coded system transfer data packets should for:
G.723.1 the quantitative range of coded system transfer data packets should for:
The quantitative range of GSM coded system transfer data packets should for:
G.723.1 and GSM if G.729 the coded system of setting has only,, quantitative range that then can also top three transfer data packets synthesize one:
Then in the step 501, as long as the data packet number of two data flow obtaining all in any one scope in three scopes, data packet number that just can specified data stream is in the quantitative range of the transfer data packets of determining.
Wherein, two stream can be in same range as, also can be in different range.
If comprise the data flow of multiple form in the data flow of obtaining, then in the step 502, determine the scope of the data packet number of setting according to following formula:
Wherein, the coefficient sum of each coded system is the bar number that comprises stream in the data flow, a
iBe the minimum value of i coded system transfer data packets quantity, b
iIt is the maximum of i coded system transfer data packets quantity.
Such as: set two kinds of coded systems, and comprised 3 streams, the then scope of data packet number in the data flow: big value.
Such as: set two kinds of coded systems, and comprised 3 streams, the then scope of data packet number in the data flow:
a
1* n
1+ a
2* n
2The quantity of the quantity≤transfer data packets of packet discard in the-setting-up time section
≤ b
1* n
1+ b
2* n
2The time-delay of+setting-up time section internal cause increases quantity of data packets
N is a coefficient, and n
1+ n
2=3
G.723.1 and GSM, then above-mentioned formula can also be simplified if G.729 the coded system of setting has only:
Wherein, m is the bar number that comprises stream in the data flow.
As shown in Figure 6, the method that contains a voice flow in the data flow that the embodiment of the invention is determined to obtain comprises the following steps:
Two data flow of step 600, obtaining communication one end twocouese.
Whether two data flow that step 601, judgement are obtained are respectively upstream and downstream data flow, if then execution in step 602; Otherwise, return step 600.
Whether step 602, judgement wherein include a kind of form in a data flow, if then execution in step 603; Otherwise, execution in step 606.
Step 603, in the predefined time period two data flow of obtaining communication one end twocouese.
Step 604, judge that the data packet number of two data flow obtaining is whether all in the scope of the data packet number of setting, if then execution in step 605; Otherwise, return step 600.
Step 605, the data flow carrying determining to obtain be voice flow.
Step 606, jump out this flow process.
As shown in Figure 7, the method that contains many voice flows in the data flow that the embodiment of the invention is determined to obtain comprises the following steps:
Two data flow of step 700, obtaining communication one end twocouese.
Whether two data flow of the twocouese that step 701, judgement are obtained are respectively upstream and downstream data flow, if then execution in step 702; Otherwise, return step 700.
Whether step 702, judgement wherein only contain a kind of form in a data flow, if then execution in step 707; Otherwise, execution in step 703.
The quantity of the stream that comprises in step 704, the basis data flow of obtaining, the quantitative range of the transfer data packets that expansion is set.
From the foregoing description as can be seen: the embodiment of the invention in the predefined time period, check communication one end twocouese two data flow; The quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared, if the quantity of data packets of described two data flow is in the quantitative range of described predefined transfer data packets, what then determine described data flow carrying is voice flow, thereby simplified the step that detects voice flow, improved the speed and the accuracy that detect voice flow.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1, a kind of method that detects voice flow is characterized in that, this method comprises:
In the predefined time period, check two data flow of communication one end twocouese;
The quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared, if the quantity of data packets of described two data flow is in the quantitative range of described predefined transfer data packets, what then determine described data flow carrying is voice flow.
2, the method for claim 1 is characterized in that, the method for the scope of described predefined data packet number specifically comprises:
Set a coded system;
Determine the quantitative range of described coded system transfer data packets according to described coded system.
3, the method for claim 1 is characterized in that, the method for the scope of described predefined data packet number specifically comprises:
Set at least two coded systems, determine the quantitative range of the transfer data packets of each coded system correspondence at least according to described two coded systems;
If the data packet number of each bar data flow is in the quantitative range of any one described coded system transfer data packets, what then determine described data flow carrying is voice flow.
4, as claim 2 or 3 described methods, it is characterized in that, determine the quantitative range of described transfer data packets according to following formula:
Wherein, a transmission frame and a described packet load carrying frame are the frame of same-code mode after encoding in the described setting-up time section.
5, the method for claim 1, it is characterized in that, check in the predefined time period after the step of two data flow of communication one end twocouese that the step that the quantitative range of the quantity of data packets of described two data flow and predefined transfer data packets is compared also comprises before:
Whether two data flow judging communication one end twocouese are respectively upstream and downstream data flow, if then the quantity of data packets of described two data flow and the quantitative range of predefined transfer data packets are compared; Otherwise, two data flow that continue in the predefined time period, to check communication one end twocouese.
6, method as claimed in claim 5 is characterized in that, whether communicate by letter two data flow of an end twocouese of described judgement are respectively that the step of upstream and downstream data flow specifically comprises:
Check the source address and the source port number of a data flow in described two data flow, and the destination address and the destination slogan of another data flow in described two data flow;
Whether source address and the source port number of judging a data flow in described two data flow are the destination address and the destination slogan of another data flow in described two data flow, and whether the protocol type of described two data flow is identical, if the source address of a data flow and source port number are the destination address and the destination slogans of another data flow in described two data flow in described two data flow, and the protocol type of described two data flow is identical, determines that then the data flow of communication one end twocouese is respectively upstream and downstream data flow; Otherwise the data flow of determining communication one end twocouese is not upstream and downstream data flow.
7, as claim 2 or 3 described methods, it is characterized in that,, then determine the quantitative range of the transfer data packets of each coded system correspondence according to following formula if the data flow of the end twocouese of communicating by letter comprises multiple form:
Wherein, the coefficient sum of each coded system is the bar number that comprises stream in the described data flow, a
iBe the minimum value of i coded system transfer data packets quantity, b
iIt is the maximum of i coded system transfer data packets quantity.
8, a kind of device that detects voice flow is characterized in that, this device comprises:
First judge module, be used for checking in the predefined time period data packet number of two data flow of communication one end twocouese, whether the data packet number of two data flow of judging described communication one end twocouese is all in the quantitative range of the transfer data packets of setting;
Determination module is used in the scope of the data packet number that the data packet number that described first judge module is judged described two data flow is all being set the time, and what determine described data flow carrying is voice flow.
9, device as claimed in claim 8 is characterized in that, described first judge module comprises:
First configuration module is used for determining the quantitative range of described coded system transfer data packets according to a kind of coded system when preestablishing a coded system;
First processing module, whether the data packet number of two data flow that is used for checking communication one end twocouese in the predefined time period is all in the quantitative range of the transfer data packets that described first configuration module is determined, if what then determine described two data flow carrying by described determination module is voice flow; Otherwise what described determination module was determined described two data flow carrying is that non-voice flows.
10, device as claimed in claim 8 is characterized in that, described first judge module comprises:
Second configuration module is used at least when preestablishing two coded systems, determines the quantitative range of each coded system transfer data packets at least according to described two coded systems;
Second processing module, whether the data packet number of each bar data flow that is used for checking communication one end twocouese in the predefined time period is in the quantitative range of described any one coded system transfer data packets that described second configuration module is determined, if the data packet number of then determining described two data flow is all in the scope of the data packet number of setting; Otherwise the data packet number of determining described two data flow is not in the scope of the data packet number of setting.
11, as claim 9 or 10 described devices, it is characterized in that, determine the quantitative range of coded system transfer data packets according to following formula:
Wherein, a transmission frame and a described packet load carrying frame are the frame of same-code mode after encoding in the described setting-up time section.
12, device as claimed in claim 8 is characterized in that, the device of described detection voice flow also comprises:
Second judge module is used for checking whether two data flow of communication one end twocouese are respectively upstream and downstream data flow in the predefined time period;
When then described first judge module determines that at described second judge module described two data flow are upstream and downstream data flow respectively, in the predefined time period, check two data flow of communication one end twocouese.
13, device as claimed in claim 12 is characterized in that, described second judge module comprises:
First module is used for checking whether the source address and the source port number of a data flow of two data flow of described communication one end twocouese is the destination address and the destination slogan of another data flow;
Second module is used to check whether the protocol type of two data flow of described communication one end twocouese is identical;
Three module, be used for determining the source address of a data flow of two data flow of described communication one end twocouese and destination address and the destination slogan that source port number is another data flow in described first module, and when the protocol type that described second module is determined two data flow is identical, determine that the data flow of communication one end twocouese is respectively upstream and downstream data flow.
14, as claim 9 or 10 described devices, it is characterized in that,, then determine the quantitative range of coded system transfer data packets according to following formula if comprise the data flow of multiple form in the data flow of the end twocouese of communicating by letter:
Wherein, the coefficient sum of each coded system is the bar number that comprises stream in the described data flow, a
iBe the minimum value of i coded system transfer data packets quantity, b
iIt is the maximum of i coded system transfer data packets quantity.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225213A (en) * | 2019-06-17 | 2019-09-10 | 华为技术有限公司 | A kind of recognition methods of voice communication scene and audio policy service end |
| CN110225212A (en) * | 2019-05-21 | 2019-09-10 | 中国电子科技集团公司第三十六研究所 | A kind of VoIP voice restoration methods and device |
-
2007
- 2007-06-15 CN CNB2007101113651A patent/CN100490401C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225212A (en) * | 2019-05-21 | 2019-09-10 | 中国电子科技集团公司第三十六研究所 | A kind of VoIP voice restoration methods and device |
| CN110225213A (en) * | 2019-06-17 | 2019-09-10 | 华为技术有限公司 | A kind of recognition methods of voice communication scene and audio policy service end |
| CN110225213B (en) * | 2019-06-17 | 2020-08-25 | 华为技术有限公司 | Recognition method of voice call scene and audio policy server |
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|---|---|
| CN100490401C (en) | 2009-05-20 |
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