CN106297827A - Detection method that voice encryption is made mistakes and device - Google Patents
Detection method that voice encryption is made mistakes and device Download PDFInfo
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- CN106297827A CN106297827A CN201510295661.6A CN201510295661A CN106297827A CN 106297827 A CN106297827 A CN 106297827A CN 201510295661 A CN201510295661 A CN 201510295661A CN 106297827 A CN106297827 A CN 106297827A
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- H—ELECTRICITY
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/012—Comfort noise or silence coding
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Abstract
The invention discloses the detection method that a kind of voice encryption is made mistakes, including: according to the value of the measured parameter of mute frame in the audio data stream got and the code rate of the previous speech frame adjacent with this mute frame, it is judged that the value of the measured parameter of this mute frame is the most legal；By setting whether thresholding exceedes setting thresholding with the illegal accumulated quantity of the value judging the measured parameter of mute frame in detection window, when accumulative illegal quantity exceedes setting thresholding, determine that voice encryption is made mistakes.The present invention also provides for the detection device that a kind of voice encryption is made mistakes.The present invention is determined by voice encryption and makes mistakes and then achieve and cause the detection of singing of the stream to makeing mistakes due to voice encryption, the detection method of some parameter that compensate for dependence speech frame cannot carry out the deficiency of singing of the stream detection in the case of major part is all mute frame in speech data, the method system of perfect singing of the stream detection, and extend the scope of application for singing of the stream detection further.
Description
Technical field
The present invention relates to field of voice communication, particularly relate to detection method and device that voice encryption is made mistakes.
Background technology
(Universal Mobile Telecommunications System is called for short UMTS
UMTS) speech business coding have employed and global system for mobile communications (Global System for Mobile
Communications, is called for short GSM) compatible AMR (Adaptive Multi-rate, letter
Claim AMR) technology.The security mechanism of UMTS system inherits the security mechanism of GSM, major embodiment
In encryption.In umts, encryption function is activated by core net, and encryption parameter is sent to wireless network
Controller (Radio Network Controller, be called for short RNC) and subscriber equipment (User Equipment,
It is called for short UE), RNC and UE jointly complete ciphering process each other.
Through the speech data of encryption, if the parameter error used during deciphering, then the voice restored
Data will be singing of the stream after being decoded by vocoder.UMTS system occurs the reason of singing of the stream mainly
The encryption parameter that RNC and UE uses is because some reason occurs in that inconsistent, it is therefore desirable to due to language
The singing of the stream that sound encryption makes mistakes and results in detects.For the detection master of singing of the stream in prior art
If relying on some parameter detecting of speech frame, and when in speech data, major part is all mute frame, this
Plant detection method and the most just lose effect.
Summary of the invention
Present invention is primarily targeted at the detection method and device providing a kind of voice encryption to make mistakes, it is intended to
Solve how by the detection of mute frame being determined voice encryption whether mistake, and then realize singing of the stream
Detection.
For achieving the above object, the present invention provides the detection method that a kind of voice encryption is made mistakes, described detection
Method includes:
Obtain the measured parameter of mute frame in audio data stream and the volume of the previous speech frame of described mute frame
Bit rate；
Code rate according to described speech frame, it is judged that whether the value of the measured parameter of described mute frame closes
Method；
In detection window, add up the illegal quantity of value of the measured parameter of described mute frame and judge
Whether this quantity exceedes setting thresholding；
If, it is determined that voice encryption is made mistakes.
Preferably, the described code rate according to described speech frame, it is judged that the measured parameter of described mute frame
Value the most legal include:
Relatively the taking of the MI field of the numbering corresponding to the code rate of described speech frame and described mute frame
Being worth the most identical, the measured parameter of described mute frame at least includes MI field；
If, it is determined that the value of the MI field of described mute frame is legal；
If not, it is determined that the value of the MI field of described mute frame is illegal.
Preferably, in described acquisition audio data stream before the measured parameter of mute frame and described mute frame
Also include before the code rate of one speech frame:
Before described mute frame occurs, record the code rate of each described speech frame.
Preferably, described determine voice encryption to make mistakes afterwards to include:
The result of output detections.
For achieving the above object, the present invention also provides for the detection device that a kind of voice encryption is made mistakes, described inspection
Survey device includes:
Acquisition module, for obtaining the measured parameter of mute frame in audio data stream and described mute frame
The code rate of previous speech frame；
Legal judge module, for the code rate according to described speech frame, it is judged that the quilt of described mute frame
The value surveying parameter is the most legal；
Accumulation module, in detection window, the value of the measured parameter of accumulative described mute frame does not conforms to
The quantity of method；
Threshold decision block, in detection window, it is judged that the value of the measured parameter of described mute frame
Whether illegal accumulated quantity exceedes setting thresholding；
Determine module, for determining the result of detection.
Preferably, described legal judge module is specifically additionally operable to:
Relatively the taking of the MI field of the numbering corresponding to the code rate of described speech frame and described mute frame
Being worth the most identical, the measured parameter of described mute frame at least includes MI field；
If, it is determined that the value of the MI field of described mute frame is legal；
If not, it is determined that the value of the MI field of described mute frame is illegal.
Preferably, described detection device also includes:
Logging modle, before occurring at described mute frame, records the code rate of each described speech frame.
Preferably, described detection device also includes:
Output module, for the result of output detections.
The present invention is according to the value of the measured parameter of mute frame in the audio data stream got and quiet with this
The code rate of the previous speech frame that sound frame is adjacent, it is judged that whether the value of the measured parameter of this mute frame closes
Method；Meanwhile, in detection window, thresholding is set illegal with the value judging the measured parameter of mute frame
Whether accumulated quantity exceedes setting thresholding, if exceeding setting thresholding, determines that voice encryption is made mistakes, and voice
Encryption makes mistakes, and can result in singing of the stream, thus furthermore achieved that the detection to singing of the stream.The present invention
The detection method that compensate for relying on some parameter of speech frame cannot major part be all quiet in speech data
The deficiency of singing of the stream detection is carried out in the case of frame, the perfect method system of singing of the stream detection, the most also
Further expand the scope of application for singing of the stream detection.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of detection method one embodiment that voice encryption of the present invention is made mistakes；
Fig. 2 is the high-level schematic functional block diagram of the detection device first embodiment that voice encryption of the present invention is made mistakes；
Fig. 3 is the high-level schematic functional block diagram of detection device the second embodiment that voice encryption of the present invention is made mistakes；
Fig. 4 is the high-level schematic functional block diagram of detection device the 3rd embodiment that voice encryption of the present invention is made mistakes.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
The present invention.
Technical scheme can apply to various communication system, such as GSM code division multiple access system,
WCDMA broadband CDMA system, GPRS General Packet Radio Service System, LTE Long Term Evolution
System etc..
The singing of the stream problem occurred after tone decoding is the intrinsic problem of UMTS network, from its produce former
Reason is analyzed, mainly due to the language of UMTS network element radio network controller (RNC) Yu user equipment (UE) side
The encryption parameter used in sound communication process is inconsistent and causes voice encryption to be made mistakes, thus ultimately results in stream
The generation of the underwater sound.And the detection currently for singing of the stream typically uses magnanimity drive test, testing to reappear stream
The underwater sound, is then analyzed searching reason according to the data that obtain of test, but this type of mode not only efficiency
Low, and need to expend ample resources.Additionally, also have some parameter to speech frame to detect, but
This type of method is time in speech data, major part is all mute frame, and the method will be unable to detect.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are detection method one embodiment that voice encryption of the present invention is made mistakes.
In the present embodiment, described detection method includes:
Step S1, obtains measured parameter and the previous language of described mute frame of mute frame in audio data stream
The code rate of sound frame；
Step S2, according to the code rate of described speech frame, it is judged that taking of the measured parameter of described mute frame
It is the most legal to be worth；
Step S3, in detection window, the illegal number of value of the measured parameter of accumulative described mute frame
Measure and judge whether this quantity exceedes setting thresholding；
Step S4, if, it is determined that voice encryption is made mistakes.
It should be noted that in above-mentioned steps S3, it is also possible to the value of the measured parameter of accumulative mute frame
Legal quantity also judges whether this quantity exceedes setting thresholding, specifically can be configured according to actual needs.
Below in conjunction with specific embodiment, above-mentioned steps is implemented and illustrates.
In various embodiments of the present invention, the voice coding modes of audio data stream includes AMR-NB
(Adaptive Multi Rate Narrow Band, self-adapting multi-rate narrowband encodes) or AMR-WB
(Adaptive Multi Rate Wide Band, AMR-WB encodes), wherein, AMR-NB
Code rate have eight kinds, namely to there being eight kinds of different code rates numbering (the most corresponding numberings
It is 0～7)；And the code rate of AMR-WB has nine kinds, namely to there being nine kinds of different code rates
Numbering (the most corresponding numbered 0～8), is illustrated with AMR-NB in detail below.
Embodiment one:
Step S1 is implemented:
The number of speech frames that radio network controller (RNC) receives identifies according to by the transformat combination of its correspondence
The ginseng at initial stage is set up in symbol TFCI (Transport Format Combination Indicator) and speech business
Number may determine that the code rate of speech frame, and and then can number the code rate that should determine that speech frame.
The measured parameter of mute frame can be obtained by the coded data obtaining mute frame from audio data stream
Value.The coded data of mute frame includes multiple field, such as MI (Mode Indication) field,
MR (Mode Request) field, FT (Frame Type) field etc..Each field corresponding 3 or
4 bit code, the field value difference that different bit code is corresponding.Therefore, can be using above-mentioned field as quiet
The measured parameter of sound frame, in detail below using MI field as the measured parameter of mute frame.
Optionally, before mute frame occurs, need to record the code rate of each speech frame, thus obtain
The code rate of the previous speech frame of mute frame, the 8th kind in eight kinds of speed of e.g. AMR-NB,
Then corresponding code rate numbered 7, also obtains the measured parameter of mute frame simultaneously.
Step S2 is implemented:
Optionally, by the numbering corresponding to the code rate of relatively described speech frame and described mute frame
The value of the most identical MI field judging mute frame of the value of MI field is the most legal；
If it is identical, it is determined that the value of the MI field of described mute frame is legal；
If differing, it is determined that the value of the MI field of described mute frame is illegal.
Specify according to 3GPP agreement, the code rate of speech frame before the value of the field of mute frame and mute frame
Relevant, namely the value of the field of mute frame is identical with the code rate numbering of speech frame before mute frame.
It is preferred, therefore, that using the value of the MI field of mute frame as measured parameter, therefore, mute frame
The span of MI field (3 bits) be 0～7 (coded system is AMR-NB) or 0～8
(4 bits, coded system is AMR-WB).Such as, the measured parameter MI word of the mute frame of acquisition
The value of section is 7 (coded system is AMR-NB).
The code rate numbered 7 of the speech frame owing to obtaining in step S1, with the quilt of the mute frame obtained
The value 7 surveying parameter MI field is identical, and therefore, the value of the measured parameter MI field of mute frame " is closed
Method ".
Step S3 is implemented:
Such as, detection window is 100, sets thresholding as 80, and accumulative to carry out 100 values illegal
Judge, namely repeat 100 steps S1, S2 and to carry out judged result value illegal accumulative, obtain
Accumulated result, the illegal quantity of value of the measured parameter MI field of such as accumulative mute frame is 13
Secondary, less than setting thresholding 80, namely the value of the measured parameter MI field of mute frame is illegal accumulative
Quantity is not above setting thresholding.
Step S4 is implemented:
If the illegal quantity of value of the measured parameter MI field of accumulative mute frame is not above setting
Thresholding, it is determined that voice encryption is not made mistakes, if voice encryption is not made mistakes, then will not produce singing of the stream,
Thus, by the detection that voice encryption is made mistakes, furthermore achieved that the detection to singing of the stream.
Optionally, if accumulated quantity is not above setting thresholding, then for there is not stream in the result of output detections
The underwater sound.Due in the present embodiment, the illegal accumulated quantity of value of the measured parameter MI field of mute frame
13 are not above setting thresholding 80, namely voice encryption do not makes mistakes, and will not produce singing of the stream, therefore,
For there is not singing of the stream in the result of output detections.
Embodiment two:
Step S1 is implemented:
The number of speech frames that radio network controller (RNC) receives identifies according to by the transformat combination of its correspondence
The ginseng at initial stage is set up in symbol TFCI (Transport Format Combination Indicator) and speech business
Number may determine that the code rate of speech frame, and and then can number the code rate that should determine that speech frame.
The measured parameter of mute frame can be obtained by the coded data obtaining mute frame from audio data stream
Value.The coded data of mute frame includes multiple field, such as MI (Mode Indication) field,
MR (Mode Request) field, FT (Frame Type) field etc..Each field corresponding 3 or
4 bit code, the field value difference that different bit code is corresponding.Therefore, can be using above-mentioned field as quiet
The measured parameter of sound frame, in detail below using MI field as the measured parameter of mute frame.
Optionally, before mute frame occurs, need to record the code rate of each speech frame, thus obtain
The code rate of the previous speech frame of mute frame, the second in eight kinds of speed of e.g. AMR-NB,
Then corresponding code rate numbered 1, also obtains the measured parameter of mute frame simultaneously.
Step S2 is implemented:
Optionally, by the numbering corresponding to the code rate of relatively described speech frame and described mute frame
The value of the most identical MI field judging mute frame of the value of MI field is the most legal；
If it is identical, it is determined that the value of the MI field of described mute frame is legal；
If differing, it is determined that the value of the MI field of described mute frame is illegal.
Specify according to 3GPP agreement, the code rate of speech frame before the value of the field of mute frame and mute frame
Relevant, namely the value of the field of mute frame is identical with the code rate numbering of speech frame before mute frame.
It is preferred, therefore, that using the value of the MI field of mute frame as measured parameter, therefore, mute frame
The span of MI field (3 bits) be 0～7 (coded system is AMR-NB) or 0～8
(4 bits, coded system is AMR-WB).Such as, the measured parameter MI word of the mute frame of acquisition
The value of section is 5 (coded system is AMR-NB).
The code rate numbered 1 of the speech frame owing to obtaining in step S1, with the quilt of the mute frame obtained
The value 5 surveying parameter MI field differs, and therefore, the value of the measured parameter MI field of mute frame is " no
Legal ".
Step S3 is implemented:
Such as, detection window is 100, sets thresholding as 80, and accumulative to carry out 100 values illegal
Judge, namely repeat 100 steps S1, S2 and to carry out judged result value illegal accumulative, obtain
Accumulated result, the illegal quantity of value of the measured parameter MI field of such as accumulative mute frame is 83
Secondary, more than setting thresholding 80, namely the value of the measured parameter MI field of mute frame is illegal accumulative
Quantity has exceeded setting thresholding.
Step S4 is implemented:
If the illegal quantity of value of the measured parameter MI field of accumulative mute frame has exceeded setting door
Limit, it is determined that voice encryption is made mistakes, if voice encryption is made mistakes, then can produce singing of the stream, thus by right
The detection that voice encryption is made mistakes, furthermore achieved that the detection to singing of the stream.
Optionally, if accumulated quantity has exceeded setting thresholding, then for there is singing of the stream in the result of output detections.
Owing to, in the present embodiment, the illegal accumulated quantity of value of the measured parameter MI field of mute frame 83 surpasses
Cross setting thresholding 80, namely voice encryption has been made mistakes, singing of the stream, therefore, the knot of output detections can have been produced
For there is singing of the stream in fruit.
The embodiment of the present invention is according to the volume of the value speech frame previous with it of the measured parameter of the mute frame obtained
The identical feature of numbering corresponding to bit rate, and then can taking the measured parameter of the mute frame got
The legitimacy of value judges, meanwhile, then by repeatedly statistical analysis thus can be determined whether further to deposit
At singing of the stream.The inventive method be applicable to when speech data major part be all mute frame singing of the stream detection,
Thus the detection method that compensate for relying on some parameter of speech frame cannot major part be all in speech data
The deficiency of singing of the stream detection is carried out in the case of mute frame, the perfect method system of singing of the stream detection, with
Time also further expanded for singing of the stream detection the scope of application.
The embodiment of the present invention also proposed the detection device that a kind of voice encryption is made mistakes, and this device can realize
The detection method that the voice encryption of the invention described above embodiment is made mistakes.Additionally, in the embodiment of the present invention, language
The detection device that sound encryption makes mistakes can be integrated in radio network controller (RNC) as processing module, or
This detection equipment of person can also be embodied as single network detection device.
With reference to the functional module that Fig. 2, Fig. 2 are the detection device first embodiment that voice encryption of the present invention is made mistakes
Schematic diagram.In the present embodiment, the detection device that voice encryption is made mistakes includes:
Acquisition module 10, for obtaining the measured parameter of mute frame in audio data stream and described mute frame
The code rate of previous speech frame；
Legal judge module 20, for the code rate according to described speech frame, it is judged that described mute frame
The value of measured parameter is the most legal；
Accumulation module 30, in detection window, the value of the measured parameter of accumulative described mute frame is not
Legal quantity；
Threshold decision block 40, in detection window, it is judged that taking of the measured parameter of described mute frame
It is worth whether illegal accumulated quantity exceedes setting thresholding；
Determine module 50, for determining the result of detection.
Further, reference Fig. 3, Fig. 3 is detection device the second embodiment that voice encryption of the present invention is made mistakes
High-level schematic functional block diagram, the detection device that voice encryption of the present invention is made mistakes also can farther include:
Logging modle 60, before occurring at described mute frame, records the speed letter of each described speech frame
Breath.
Further, reference Fig. 4, Fig. 4 is detection device the 3rd embodiment that voice encryption of the present invention is made mistakes
High-level schematic functional block diagram, the detection device that voice encryption of the present invention is made mistakes also can farther include:
Output module 70, for the result of output detections.
Illustration at the technical characteristic of above-mentioned method part according to embodiments of the present invention can also be suitable
Ground is applicable to the detection device that the voice encryption of the embodiment of the present invention is made mistakes, and vice versa.Below in conjunction with tool
Body embodiment, the implementing of each functional module of the detection device makeing mistakes voice encryption illustrates.
In various embodiments of the present invention, the voice coding modes of audio data stream includes AMR-NB
(Adaptive Multi Rate Narrow Band, self-adapting multi-rate narrowband encodes) or AMR-WB
(Adaptive Multi Rate Wide Band, AMR-WB encodes), wherein, AMR-NB
Code rate have eight kinds, namely to there being eight kinds of different code rates numbering (the most corresponding numberings
It is 0～7)；And the code rate of AMR-WB has nine kinds, namely to there being nine kinds of different code rates
Numbering (the most corresponding numbered 0～8), is illustrated with AMR-NB in detail below.
Embodiment one:
For implementing of acquisition module 10:
The number of speech frames that acquisition module 10 receives is according to by the transport format combination identifiers TFCI of its correspondence
It is permissible that the parameter at initial stage is set up in (Transport Format Combination Indicator) and speech business
Judge the code rate of speech frame, and and then the code rate that should determine that speech frame can be numbered.
Acquisition module 10 can obtain mute frame by the coded data obtaining mute frame from audio data stream
The value of measured parameter.The coded data of mute frame includes multiple field, such as MI (Mode
Indication) field, MR (Mode Request) field, FT (Frame Type) field etc..Often
Individual field corresponding 3 or 4 bit code, the field value difference that different bit code is corresponding.Therefore,
Can be using above-mentioned field as the measured parameter of mute frame, tested using MI field as mute frame in detail below
Parameter.
Optionally, before mute frame occurs, logging modle 60 needs to record the code rate of each speech frame,
Thus acquisition module 10 can obtain the code rate of previous speech frame of mute frame, e.g. AMR-NB
Eight kinds of speed in the 8th kind, then corresponding code rate numbered 7, acquisition module 10 also obtains simultaneously
Obtain the value of the measured parameter of mute frame.
For implementing of legal judge module 20:
Optionally, by the numbering corresponding to the code rate of relatively described speech frame and described mute frame
The value of the most identical MI field judging mute frame of the value of MI field is the most legal；
If it is identical, it is determined that the value of the MI field of described mute frame is legal；
If differing, it is determined that the value of the MI field of described mute frame is illegal.
Specify according to 3GPP agreement, the code rate of speech frame before the value of the field of mute frame and mute frame
Relevant, namely the value of the field of mute frame is identical with the code rate numbering of speech frame before mute frame.
It is preferred, therefore, that using the value of the MI field of mute frame as measured parameter, therefore, mute frame
The span of MI field (3 bits) be 0～7 (coded system is AMR-NB) or 0～8
(4 bits, coded system is AMR-WB).Such as, the measured parameter MI word of the mute frame of acquisition
The value of section is 7 (coded system is AMR-NB).
The code rate numbered 7 of the speech frame owing to obtaining in acquisition module 10, with the mute frame obtained
The value 7 of measured parameter MI field identical, therefore, the value of the measured parameter MI field of mute frame
" legal ".
For implementing of accumulation module 30 and threshold decision block 40:
Such as, detection window is 100, sets thresholding as 80, and accumulation module 30 carries out 100 times with accumulative
The illegal quantity of value of the measured parameter of mute frame, obtains accumulated result.Such as accumulative mute frame
The illegal quantity of value of measured parameter MI field be 13 times, less than setting thresholding 80, Ye Jijing
The illegal accumulated quantity of value of the measured parameter MI field of sound frame is not above setting thresholding.Thresholding is sentenced
Disconnected module 40 is judged as less than setting thresholding 80, namely the value of the measured parameter of mute frame is illegal tired
Count number is not above setting thresholding.
For determining implementing of module 50:
If the illegal quantity of value of the measured parameter MI field of accumulative mute frame is not above setting
Thresholding, it is determined that voice encryption is not made mistakes, if voice encryption is not made mistakes, then will not produce singing of the stream,
Thus, by the detection that voice encryption is made mistakes, furthermore achieved that the detection to singing of the stream.
For implementing of output module 70:
If accumulated quantity is not above setting thresholding, then the result of output module 70 output detections is not for exist
Singing of the stream.Due in the present embodiment, the illegal accumulative total of value of the measured parameter MI field of mute frame
Amount 13 is not above setting thresholding 80, namely voice encryption do not makes mistakes, and will not produce singing of the stream, therefore,
For there is not singing of the stream in the result of output module 70 output detections.
Embodiment two:
For implementing of acquisition module 10:
The number of speech frames that acquisition module 10 receives is according to by the transport format combination identifiers TFCI of its correspondence
It is permissible that the parameter at initial stage is set up in (Transport Format Combination Indicator) and speech business
Judge the code rate of speech frame, and and then the code rate that should determine that speech frame can be numbered.
Acquisition module 10 can obtain mute frame by the coded data obtaining mute frame from audio data stream
The value of measured parameter.The coded data of mute frame includes multiple field, such as MI (Mode
Indication) field, MR (Mode Request) field, FT (Frame Type) field etc..Often
Individual field corresponding 3 or 4 bit code, the field value difference that different bit code is corresponding.Therefore,
Can be using above-mentioned field as the measured parameter of mute frame, tested using MI field as mute frame in detail below
Parameter.
Optionally, before mute frame occurs, logging modle 60 needs to record the code rate of each speech frame,
Thus acquisition module 10 can obtain the code rate of previous speech frame of mute frame, e.g. AMR-NB
Eight kinds of speed in the second, then corresponding code rate numbered 1, acquisition module 10 also obtains simultaneously
Obtain the value of the measured parameter of mute frame.
For implementing of legal judge module 20:
Optionally, by the numbering corresponding to the code rate of relatively described speech frame and described mute frame
The value of the most identical MI field judging mute frame of the value of MI field is the most legal；
If it is identical, it is determined that the value of the MI field of described mute frame is legal；
If differing, it is determined that the value of the MI field of described mute frame is illegal.
Specify according to 3GPP agreement, the code rate of speech frame before the value of the field of mute frame and mute frame
Relevant, namely the value of the field of mute frame is identical with the code rate numbering of speech frame before mute frame.
It is preferred, therefore, that using the value of the MI field of mute frame as measured parameter, therefore, mute frame
The span of MI field (3 bits) be 0～7 (coded system is AMR-NB) or 0～8
(4 bits, coded system is AMR-WB).Such as, the measured parameter MI word of the mute frame of acquisition
The value of section is 5 (coded system is AMR-NB).
The code rate numbered 1 of the speech frame owing to obtaining in acquisition module 10, with the mute frame obtained
The value 5 of measured parameter MI field differ, therefore, taking of the measured parameter MI field of mute frame
Value " illegal ".
For implementing of accumulation module 30 and threshold decision block 40:
Such as, detection window is 100, sets thresholding as 80, and accumulation module 30 carries out 100 times with accumulative
The illegal quantity of value of the measured parameter of mute frame, obtains accumulated result.Such as accumulative mute frame
The illegal quantity of value of measured parameter MI field be 83 times, more than setting thresholding 80, Ye Jijing
The illegal accumulated quantity of value of the measured parameter MI field of sound frame has exceeded setting thresholding.Thresholding judges
Module 40 is judged as more than setting thresholding 80, namely the value of the measured parameter of mute frame is illegal accumulative
Quantity has exceeded setting thresholding.
For determining implementing of module 50:
If the illegal quantity of value of the measured parameter MI field of accumulative mute frame has exceeded setting door
Limit, it is determined that voice encryption is made mistakes, if voice encryption is made mistakes, then can produce singing of the stream, thus, pass through
The detection makeing mistakes voice encryption, furthermore achieved that the detection to singing of the stream
For implementing of output module 70:
If accumulated quantity has exceeded setting thresholding, then for there is flowing water in the result of output module 70 output detections
Sound.Due in the present embodiment, the illegal accumulated quantity of value of the measured parameter MI field of mute frame
83 have exceeded setting thresholding 80, namely voice encryption is made mistakes, and can produce singing of the stream, therefore, output module
For there is singing of the stream in the result of 70 output detections.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. the detection method that a voice encryption is made mistakes, it is characterised in that described detection method includes:
Obtain the measured parameter of mute frame in audio data stream and the volume of the previous speech frame of described mute frame
Bit rate；
Code rate according to described speech frame, it is judged that whether the value of the measured parameter of described mute frame closes
Method；
In detection window, add up the illegal quantity of value of the measured parameter of described mute frame and judge
Whether this quantity exceedes setting thresholding；
If, it is determined that voice encryption is made mistakes.
2. detection method as claimed in claim 1, it is characterised in that described according to described speech frame
Code rate, it is judged that the value of the measured parameter of described mute frame is the most legal to be included:
Relatively the taking of the MI field of the numbering corresponding to the code rate of described speech frame and described mute frame
Being worth the most identical, the measured parameter of described mute frame at least includes MI field；
If, it is determined that the value of the MI field of described mute frame is legal；
If not, it is determined that the value of the MI field of described mute frame is illegal.
3. detection method as claimed in claim 1 or 2, it is characterised in that described acquisition speech data
Stream also wraps before the code rate of the previous speech frame of the measured parameter of mute frame and described mute frame
Include:
Before described mute frame occurs, record the code rate of each described speech frame.
4. detection method as claimed in claim 3, it is characterised in that described determine that voice encryption is made mistakes
Include afterwards:
The result of output detections.
5. the detection device that a voice encryption is made mistakes, it is characterised in that described detection device includes:
Acquisition module, for obtaining the measured parameter of mute frame in audio data stream and described mute frame
The code rate of previous speech frame；
Legal judge module, for the code rate according to described speech frame, it is judged that the quilt of described mute frame
The value surveying parameter is the most legal；
Accumulation module, in detection window, the value of the measured parameter of accumulative described mute frame does not conforms to
The quantity of method；
Threshold decision block, in detection window, it is judged that the value of the measured parameter of described mute frame
Whether illegal accumulated quantity exceedes setting thresholding；
Determine module, for determining the result of detection.
Detect device the most as claimed in claim 5, it is characterised in that described legal judge module is concrete
It is additionally operable to:
Relatively the taking of the MI field of the numbering corresponding to the code rate of described speech frame and described mute frame
Being worth the most identical, the measured parameter of described mute frame at least includes MI field；
If, it is determined that the value of the MI field of described mute frame is legal；
If not, it is determined that the value of the MI field of described mute frame is illegal.
7. the detection device as described in claim 5 or 6, it is characterised in that described detection device also wraps
Include:
Logging modle, before occurring at described mute frame, records the code rate of each described speech frame.
Detect device the most as claimed in claim 7, it is characterised in that described detection device also includes:
Output module, for the result of output detections.
Priority Applications (2)
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| CN201510295661.6A CN106297827B (en) | 2015-06-02 | 2015-06-02 | Method and device for detecting voice encryption errors |
| PCT/CN2015/088521 WO2016192218A1 (en) | 2015-06-02 | 2015-08-31 | Voice encryption error detection method and apparatus |
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| CN201510295661.6A CN106297827B (en) | 2015-06-02 | 2015-06-02 | Method and device for detecting voice encryption errors |
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| CN106297827B CN106297827B (en) | 2020-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111681663A (en) * | 2020-07-24 | 2020-09-18 | 北京百瑞互联技术有限公司 | Method, system, storage medium and device for reducing audio coding computation amount |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004362721A (en) * | 2003-06-09 | 2004-12-24 | Sony Corp | Method and device for creating data, method and device for reproducing data, and program |
| WO2008150224A1 (en) * | 2007-06-04 | 2008-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient, secure digital wireless voice telephony via selective encryption |
| CN100450243C (en) * | 2007-04-06 | 2009-01-07 | 东南大学 | Anti vocoder compressed end-to-end voice encryption device and method |
| CN100499441C (en) * | 2005-10-31 | 2009-06-10 | 连展科技(天津)有限公司 | Method of implementing source control rate of AMR speech sound coding |
| CN1991977B (en) * | 2005-12-29 | 2011-06-08 | Ut斯达康通讯有限公司 | Voice coding rate confirming method for radio communication |
| CN102572929A (en) * | 2011-12-21 | 2012-07-11 | 华为技术有限公司 | Voice detection method and equipment |
| CN104301911A (en) * | 2013-07-18 | 2015-01-21 | 马维尔国际贸易有限公司 | Correcting deciphering mis-synchronization in mobile communication terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7558286B2 (en) * | 2004-10-22 | 2009-07-07 | Sonim Technologies, Inc. | Method of scheduling data and signaling packets for push-to-talk over cellular networks |
| CN101106824B (en) * | 2007-08-08 | 2010-12-08 | 华为技术有限公司 | Method and wireless network controller for enabling encryption in call establishment process |
-
2015
- 2015-06-02 CN CN201510295661.6A patent/CN106297827B/en active Active
- 2015-08-31 WO PCT/CN2015/088521 patent/WO2016192218A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004362721A (en) * | 2003-06-09 | 2004-12-24 | Sony Corp | Method and device for creating data, method and device for reproducing data, and program |
| CN100499441C (en) * | 2005-10-31 | 2009-06-10 | 连展科技(天津)有限公司 | Method of implementing source control rate of AMR speech sound coding |
| CN1991977B (en) * | 2005-12-29 | 2011-06-08 | Ut斯达康通讯有限公司 | Voice coding rate confirming method for radio communication |
| CN100450243C (en) * | 2007-04-06 | 2009-01-07 | 东南大学 | Anti vocoder compressed end-to-end voice encryption device and method |
| WO2008150224A1 (en) * | 2007-06-04 | 2008-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient, secure digital wireless voice telephony via selective encryption |
| CN102572929A (en) * | 2011-12-21 | 2012-07-11 | 华为技术有限公司 | Voice detection method and equipment |
| CN104301911A (en) * | 2013-07-18 | 2015-01-21 | 马维尔国际贸易有限公司 | Correcting deciphering mis-synchronization in mobile communication terminal |
Non-Patent Citations (3)
| Title |
|---|
| 3RD GENERATION PARTNERSHIP PROJECT等: "《3G TS 26.101 V1.4.0》", 31 October 1999 * |
| 3RD GENERATION PARTNERSHIP PROJECT等: "《3GPP TS 26.093 V12.0.O》", 30 September 2014 * |
| 王洪等: "3GPP中语音编码的自适应技术与源控速率（SCR）操作", 《信息工程大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111681663A (en) * | 2020-07-24 | 2020-09-18 | 北京百瑞互联技术有限公司 | Method, system, storage medium and device for reducing audio coding computation amount |
| CN111681663B (en) * | 2020-07-24 | 2023-03-31 | 北京百瑞互联技术有限公司 | Method, system, storage medium and device for reducing audio coding computation amount |
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| CN106297827B (en) | 2020-07-10 |
| WO2016192218A1 (en) | 2016-12-08 |
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