CN107846691A - A kind of MOS measuring methods, device and analyzer - Google Patents
A kind of MOS measuring methods, device and analyzer Download PDFInfo
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- CN107846691A CN107846691A CN201610826199.2A CN201610826199A CN107846691A CN 107846691 A CN107846691 A CN 107846691A CN 201610826199 A CN201610826199 A CN 201610826199A CN 107846691 A CN107846691 A CN 107846691A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention discloses a kind of MOS measuring methods, device and analyzer, methods described includes：Average opinion value MOS analysis instrument sends original tested speech；The MOS analysis instrument receives the distortion measurement voice at least having carried out speech degeneration simulation process to the original tested speech；The MOS analysis instrument carries out MOS measurements according to the original tested speech and the distortion measurement voice, obtains MOS values.The present invention can evade mobile phone during MOS is tested and introduce error.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of average opinion value (Mean Opinion Score, MOS) measurement
Method, apparatus and analyzer.
Background technology
Fig. 1 is the conventional MOS metering system schematic diagram that prior art provides, and Fig. 2 is that the conventional MOS that prior art provides is surveyed
Amount connection block diagram, as depicted in figs. 1 and 2, in general MOS measuring systems are (to be tested using external MOS analysis instrument by MOS
Hardware system coordinates MOS test softwares) measure work to complete MOS.The work that external MOS measuring systems are completed is to main quilt
Two side's voice signals are made to be acquired processing, standard voice signals (i.e. PCM voices 1) pass through D/A by MOS analysis instrument hardware system
The mobile phone 1 as caller is sent to by Mike (Mic, M)/receiver (Earphone, E) again after being converted to analog voice signal,
By being encoded to PCM voices (i.e. PCM voices 3) after A/D samplings and pcm encoder in mobile phone 1, PCM voices are by being wirelessly transferred
Afterwards by being received as called mobile phone 2, the PCM voices (i.e. PCM voices 4) of mobile phone 2 lead to after D/A becomes analog voice signal
Cross M/E and send MOS analysis instrument to, then PCM voice signals (i.e. PCM voices 2), the PCM voices restored are reduced into by A/D
Signal (i.e. PCM voices 2) carries out MOS calculating together with original PCM received pronunciations (i.e. PCM voices 1).
This mode is can be seen that from Fig. 1 and Fig. 2 and substantially completely simulates the process conversed between two people, in reality
In measurement, such process is desirable, can completely investigate including mobile phone/network have an impact voice quality because
Element.But because extra hardware system and the MOS differences thus brought are difficult control, for example hardware is poor between different mobile phones
The different difference that may cause MOS values, same mobile phone may also cause the difference of MOS values in different time sections or different physical environments
It is different.And in actual measurement process, cellular carrier and equipment vendor more pay close attention to influence of the network to voice quality in itself, and are not related to
Influences of the mobile phone M/E and A/D and D/A to MOS values is noted, it is therefore desirable for M/E and A/D and the D/A process of error may be introduced to MOS
The influence of value keeps constant.
Standard voice signals by A/D, D/A and MIC, are not directly loaded into terminal and carried out by some existing solutions
Measurement, this mode cause the MOS values at some moment can be abnormal big or abnormal small due to not passing through A/D, D/A and MIC,
Therefore such measurement result is not approved by operator etc..
The content of the invention
The technical problem that the technical scheme provided according to embodiments of the present invention solves is how to overcome a large number of users to measure MOS
Period, MOS caused by difference, environmental difference, mobile phone change the difference that (such as Mic abrasions) is brought between mobile phone calculate difference.
A kind of MOS measuring methods provided according to embodiments of the present invention, including：
Send original tested speech；
Receive the distortion measurement voice at least having carried out speech degeneration simulation process to the original tested speech；
MOS measurements are carried out according to the original tested speech and the distortion measurement voice, obtain MOS values.
Preferably, the speech degeneration simulation process send words simulation process, the original survey of described transmission including terminal speech
Examination voice includes：
The original tested speech is sent to the first wave filter with the first carry-over factor f1, for the described first filter
Ripple device carries out terminal speech to the original tested speech and send words simulation process, obtains first tested speech with f1, and pass through
Sent by transmission terminal to the wireless network with the second carry-over factor f2.
Preferably, described reception has at least carried out the distortion survey of speech degeneration simulation process to the original tested speech
Examination voice includes：
Received via receiving terminal has f1 and f2 as obtained from the wireless network transmits first tested speech
The second tested speech, and using second tested speech as distortion measurement voice.
The speech degeneration simulation process also includes the called simulation process of terminal speech, and described reception is to described original
The distortion measurement voice that tested speech at least carries out speech degeneration simulation process includes：
Received via receiving terminal as obtained from the wireless network transmits first tested speech have f1 and
After f2 the second tested speech, obtained from the second wave filter with the 3rd carry-over factor f3 to second tested speech
The 3rd tested speech with f1, f2 and f3 of the called simulation process of terminal speech is carried out, and the 3rd tested speech is made
For distortion measurement voice.
Preferably, the original tested speech of described transmission includes：
The original tested speech is sent to the wireless network with the second carry-over factor f2 via terminal is sent.
Preferably, the speech degeneration simulation process includes the called simulation process of terminal speech, and described reception is to institute
Stating original tested speech and at least carrying out the distortion measurement voice of speech degeneration simulation process includes：
The original tested speech is transmitted by the wireless network and obtain having the of f2 being received via receiving terminal
After four tested speech, obtain from the second wave filter with the 3rd carry-over factor f3 and the 4th tested speech is carried out eventually
The 5th tested speech with f2 and f3 of the called simulation process of speech is held, and using the 5th tested speech as distortion measurement
Voice.
The storage medium provided according to embodiments of the present invention, it stores the program for realizing above-mentioned MOS measuring methods.
A kind of analyzer provided according to embodiments of the present invention, including：
Voice transmission device, for sending original tested speech；
Voice receiver, the distortion of speech degeneration simulation process is at least carried out to the original tested speech for receiving
Tested speech；
Speech processor, for carrying out MOS measurements according to the original tested speech and the distortion measurement voice, obtain
To MOS values.
Preferably, the speech degeneration simulation process send words simulation process including terminal speech, and the voice transmission device will
The original tested speech is sent to the first wave filter with the first carry-over factor f1, so that first wave filter is to described
Original tested speech carries out terminal speech and send words simulation process, obtains first tested speech with f1, and via transmission terminal
Send to the wireless network with the second carry-over factor f2.
Preferably, the voice receiver is received by wireless network transmission the first test language via receiving terminal
There is f1 and f2 the second tested speech obtained from sound, and using second tested speech as distortion measurement voice.
Preferably, the speech degeneration simulation process also includes the called simulation process of terminal speech, via receiving terminal
After receiving the second tested speech with f1 and f2 as obtained from the wireless network transmits first tested speech, institute
Voice receiver is stated to obtain to second tested speech progress terminal from the second wave filter with the 3rd carry-over factor f3
The 3rd tested speech with f1, f2 and f3 of the called simulation process of speech, and surveyed the 3rd tested speech as distortion
Try voice.
Preferably, the voice transmission device sends the original tested speech to the second transmission via terminal is sent
Coefficient f2 wireless network.
Preferably, the speech degeneration simulation process includes the called simulation process of terminal speech, is connect via receiving terminal
Receive and transmitted the original tested speech by the wireless network and obtained after there is f2 the 4th tested speech, the voice connects
It is called to the 4th tested speech progress terminal speech from the second wave filter acquisition with the 3rd carry-over factor f3 to receive device
The 5th tested speech with f2 and f3 of simulation process, and using the 5th tested speech as distortion measurement voice.
A kind of MOS measurement apparatus provided according to embodiments of the present invention, including：
Sending module, for sending original tested speech；
Receiving module, the distortion at least having carried out speech degeneration simulation process to the original tested speech for receiving are surveyed
Try voice；
Measurement module, for carrying out MOS measurements according to the original tested speech and the distortion measurement voice, obtain
MOS values.
Preferably, the speech degeneration simulation process send words simulation process including terminal speech, and the sending module is by institute
State original tested speech to send to the first wave filter with the first carry-over factor f1, so that first wave filter is to the original
Beginning tested speech carries out terminal speech and send words simulation process, obtains first tested speech with f1, and send out via terminal is sent
Deliver to the wireless network with the second carry-over factor f2, or send the original tested speech to having via terminal is sent
F2 wireless network.
Preferably, the speech degeneration simulation process also includes the called simulation process of terminal speech, the receiving module warp
The second test with f1 and f2 as obtained from the wireless network transmits first tested speech is received as receiving terminal
Voice as distortion measurement voice, or, from the 3rd carry-over factor f3 the second wave filter obtain to described second survey
Try voice and carry out the 3rd tested speech with f1, f2 and f3 of the called simulation process of terminal speech as distortion measurement voice,
Or obtain having the 4th of f2 to survey by the wireless network transmission original tested speech being received via receiving terminal
After trying voice, obtain from the second wave filter with f3 and the 4th tested speech is carried out at the called emulation of terminal speech
The 5th tested speech with f2 and f3 of reason is as distortion measurement voice.
Technical scheme provided in an embodiment of the present invention has the advantages that：
The embodiment of the present invention can evade because difference, environmental difference and/or mobile phone change (such as mic abrasions) between mobile phone
MOS caused by difference brought etc. calculates difference, particularly this when a large amount of cellphone subscribers carry out MOS tests simultaneously to evade hand
The Large Copacity MOS testing schemes that power traction enters error have more obvious advantage.
Brief description of the drawings
Fig. 1 is the conventional MOS metering system schematic diagram that prior art provides；
Fig. 2 is the conventional MOS measurement connection block diagram that prior art provides；
Fig. 3 is MOS measuring methods block diagram provided in an embodiment of the present invention；
Fig. 4 is MOS measuring systems block diagram provided in an embodiment of the present invention；
Fig. 5 is the workflow diagram of MOS measurements provided in an embodiment of the present invention；
Fig. 6 is MOS theories of testing block diagram provided in an embodiment of the present invention；
Fig. 7 is the MOS test block diagrams evaded mobile phone and introduce error that first embodiment of the invention provides；
Fig. 8 is the MOS test block diagrams evaded mobile phone and introduce error that second embodiment of the invention provides；
Fig. 9 is the MOS test block diagrams evaded mobile phone and introduce error that third embodiment of the invention provides；
Figure 10 is the locating cellphone difference staged isolation analysis method theory block diagram that fourth embodiment of the invention provides；
Figure 11 is the locating cellphone difference staged isolation analysis method theory block diagram that fifth embodiment of the invention provides.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, it will be appreciated that described below is excellent
Select embodiment to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 3 is MOS measuring methods block diagram provided in an embodiment of the present invention, as shown in figure 3, step includes：
Step S101：MOS analysis instrument sends test via the wireless network for sending terminal and having the second carry-over factor f2
During voice, receiving terminal receives the tested speech with f1 and f2 or with f2.
Implementation 1：The tested speech sent by the dispensing device with the first carry-over factor f1 to the MOS analysis instrument
Carry out terminal speech and send words simulation process, obtain the tested speech with f1；The transmission terminal is via the wireless network with f2
The network transmission tested speech with f1, tested speech of the generation with f1 and f2.
Wherein, the f1 is before the transmission terminal sends tested speech via wireless network, to the tested speech
Carry out terminal speech and send the emulation coefficient talked about used in simulation process, the coefficient is not influenceed by D/A, A/D and M/E.
Wherein, the dispensing device is wave filter.
Implementation 2：Tested speech is sent to the transmission terminal by the MOS analysis instrument, the transmission terminal via
Wireless network with f2 transmits the tested speech, tested speech of the generation with f2.
Step S102：The tested speech with f1 and f2 or with f2 is transmitted directly to institute by the receiving terminal
State MOS analysis instrument, either the receiving terminal is received described in tested speech with f1 and f2 or with f2 carry out eventually
After holding the called simulation process of speech, the MOS analysis instrument is sent to, so that the MOS analysis instrument carries out MOS test processes, is obtained
To MOS values.
Implementation 1：The tested speech with f1 and f2 is sent to the MOS analysis instrument by the receiving terminal,
The tested speech sent by the MOS analysis instrument using it and the tested speech with f1 and f2 received carry out MOS tests
Reason.
Implementation 2：The tested speech with f1 and f2 is sent to transmit with the 3rd by the receiving terminal
Number f3 reception device, the tested speech with f1 and f2 is carried out eventually by the reception device with the 3rd carry-over factor f3
The called simulation process of speech is held, obtains the tested speech with f1, f2 and f3, and is sent to the MOS analysis instrument, by described
The tested speech that MOS analysis instrument is sent using it carries out MOS test processes with the tested speech with f1, f2 and f3 received.
Implementation 3：The tested speech with f2 is sent to the 3rd carry-over factor f3 by the receiving terminal
Reception device, the tested speech with f2 is carried out by the reception device with the 3rd carry-over factor f3 terminal speech by
Simulation process is talked about, obtains the tested speech with f2 and f3, and is sent to the MOS analysis instrument, is utilized by the MOS analysis instrument
Its tested speech sent and the tested speech with f2 and f3 received carry out MOS test processes.
Wherein, the f3 is the emulation coefficient not influenceed by D/A, A/D and M/E, and the reception device is wave filter.
That is, MOS analysis instrument is via transmission terminal, the wireless network with the second carry-over factor f2, receiving terminal
Send words simulation process (should, it is necessary to carry out terminal speech to the tested speech that the MOS analysis instrument is sent during sending tested speech
Processing coefficient used be f1) and/or the tested speech progress called simulation process of terminal speech that is received to receiving terminal (at this
Reason coefficient used is f3), so that MOS analysis instrument carries out MOS test processes.
During the present invention can overcome a large number of users test MOS, difference, environmental difference and/or mobile phone change between mobile phone
MOS caused by the difference brought (as mic wears) calculates difference.
It will appreciated by the skilled person that all or part of step is can to instruct phase by program in Fig. 3
The hardware of pass is completed, and described program can be stored in read/write memory medium, described storage medium can be ROM/
RAM, magnetic disc, CD etc..When the program performs, including：Receive the tested speech with f1 and f2 or with f2；By the tool
Having f1 and f2, either the tested speech with f2 is transmitted directly to the MOS analysis instrument or the receiving terminal is received
After the tested speech with f1 and f2 or with f2 carries out the called simulation process of terminal speech, the MOS points are sent to
Analyzer.As a kind of embodiment, MOS analysis instrument via the dispensing device with f1, send terminal and wireless network with f2
During network sends tested speech, by performing the program, receive the tested speech with f1 and f2, and will receive have f1 and
F2 tested speech is transmitted directly to MOS analysis instrument.Alternatively, the difference with previous embodiment is, leads to
Cross and perform the program, the called simulation process of terminal speech is carried out to receiving the tested speech with f1 and f2, and will obtain
Tested speech with f1, f2 and f3 is sent to MOS analysis instrument.As the third embodiment, MOS analysis instrument is whole via sending
During end and f2 wireless network send tested speech, by performing the program, the tested speech with f2 is received, to what is received
Tested speech with f2 carries out the called simulation process of terminal speech, and the obtained tested speech with f2 and f3 is sent to
MOS analysis instrument.The program for being used for MOS measurements can be stored in receiving terminal or MOS analysis instrument.
Fig. 4 is MOS measuring systems block diagram provided in an embodiment of the present invention, as shown in figure 4, including：Send terminal, receive eventually
End, have the second carry-over factor f2 wireless network, MOS analysis instrument, and with the first carry-over factor f1 dispensing device and/
Or the reception device with the 3rd carry-over factor f3.
MOS analysis instrument, for sending tested speech via the transmission terminal and the wireless network.
Receiving terminal, for receiving the tested speech with the first carry-over factor f1 and f2, and there is f1 and f2 by described in
Either the tested speech with f2 is transmitted directly to the MOS analysis instrument or utilizes reception device to described with f1 and f2
Or after the tested speech with f2 carries out the called simulation process of terminal speech, the MOS analysis instrument is sent to, for described
MOS analysis instrument carries out MOS test processes, obtains MOS values, wherein, the f1 is that the transmission terminal is sent via wireless network
Before tested speech, terminal speech is carried out to the tested speech and send the coefficient talked about used in simulation process.
Dispensing device, the tested speech for being sent to the MOS analysis instrument carry out terminal speech and send words simulation process, obtain
To the tested speech with f1, and send to terminal is sent, the tool is transmitted via the wireless network with f2 by transmission terminal
There are f1 tested speech, tested speech of the generation with f1 and f2.
Reception device, for carrying out the called simulation process of terminal speech to the tested speech with f1 and f2, obtain
Tested speech with f1, f2 and f3, or the called simulation process of terminal speech is carried out to the tested speech with f2, obtain
To the tested speech with f2 and f3.
As first embodiment, MOS test systems include MOS analysis instrument, the dispensing device with f1, send terminal, tool
There are f2 wireless network, receiving terminal.MOS analysis instrument sends tested speech；Dispensing device with f1 is sent to MOS analysis instrument
Tested speech carry out terminal speech and send words simulation process, obtain the tested speech with f1, and send to sending terminal；Send
Terminal transmits the tested speech with f1, tested speech of the generation with f1 and f2 via the wireless network with f2；Connect
Receive terminal and receive the tested speech with f1 and f2, and send to MOS analysis instrument；MOS analysis instrument using tested speech and
Tested speech with f1 and f2, MOS test processes are carried out, obtain MOS values.
As second embodiment, MOS test systems include MOS analysis instrument, send terminal, the wireless network with f2, connect
Receive terminal and the reception device with f3.MOS analysis instrument sends tested speech；Terminal is sent to pass via the wireless network with f2
Send the tested speech, tested speech of the generation with f2；Receiving terminal receives the tested speech with f2, and sends
To the receiving terminal with f3；The tested speech with f2 that receiving terminal with f3 is sent to receiving terminal carries out terminal words
The called simulation process of sound, the tested speech with f2 and f3 is obtained, and sent to MOS analysis instrument；MOS analysis instrument utilizes and tests language
Sound and the tested speech with f2 and f3, carry out MOS test processes, obtain MOS values.
As 3rd embodiment, MOS test systems include MOS analysis instrument, the dispensing device with f1, send terminal, tool
There are f2 wireless network, receiving terminal and the reception device with f3.MOS analysis instrument sends tested speech；Transmission with f1
The tested speech that device is sent to MOS analysis instrument carries out terminal speech and send words simulation process, obtains the tested speech with f1, and
Send to transmission terminal；Send terminal and transmit the tested speech with f1 via the wireless network with f2, generation has
F1 and f2 tested speech；Receiving terminal receives the tested speech with f1 and f2, and sends whole to the reception with f3
End；The tested speech with f1 and f2 that reception device with f3 is sent to receiving terminal is carried out at the called emulation of terminal speech
Reason, the tested speech with f1, f2 and f3 is obtained, and sent to MOS analysis instrument；MOS analysis instrument is using tested speech and has
F1, f2 and f3 tested speech, MOS test processes are carried out, obtain MOS values.
Above-mentioned dispensing device is the first wave filter for having f1, can be independently of terminal (such as mobile phone) is sent, can also
Set and send in terminal.
Above-mentioned reception device is the second wave filter for having f3, can be independently of receiving terminal (such as mobile phone), can also
Set in receiving terminal.
The present embodiment is a kind of Large Copacity MOS test systems that can evade mobile phone and introduce error.
Fig. 5 is the workflow diagram of MOS measurements provided in an embodiment of the present invention, as shown in figure 5, step includes：
Step S201：Send original tested speech.
Step S201 includes：The original tested speech is sent to the first wave filter with f1, for described first
Wave filter carries out terminal speech to the original tested speech and send words simulation process, obtains first tested speech with f1, and
Sent via terminal is sent to the wireless network with f2.
Or step S201 includes：The original tested speech is sent to the wireless network with f2 via terminal is sent
Network.
Step S202：Receive the distortion measurement language at least having carried out speech degeneration simulation process to the original tested speech
Sound.
Step S202 includes：Received via receiving terminal and transmitted first tested speech by the wireless network and obtained
The second tested speech with f1 and f2, and using second tested speech as distortion measurement voice.
Or step S202 includes：Received via receiving terminal by wireless network transmission the first test language
After the second tested speech with f1 and f2 obtained from sound, obtained from the second wave filter with the 3rd carry-over factor f3
The 3rd tested speech with f1, f2 and f3 of the called simulation process of terminal speech is carried out to second tested speech, and will
3rd tested speech is as distortion measurement voice.
Or step S202 includes：The original test language is transmitted by the wireless network being received via receiving terminal
Sound and obtain after there is f2 the 4th tested speech, from the 3rd carry-over factor f3 the second wave filter obtain to described
4th tested speech carries out the 5th tested speech with f2 and f3 of the called simulation process of terminal speech, and the described 5th is surveyed
Voice is tried as distortion measurement voice.
Step S203：MOS measurements are carried out according to the original tested speech and the distortion measurement voice, obtain MOS values.
MOS measuring process includes：Obtain passing via the original tested speech before communications system transmission and via communication system
After distortion measurement voice after defeated, by the original tested speech is pre-processed successively and feature extraction handle, obtain
The characteristic parameter of the original tested speech, by the distortion measurement voice is pre-processed successively and feature extraction at
Reason, obtains the characteristic parameter of the distortion measurement voice；Surveyed using the characteristic parameter of the original tested speech and the distortion
The characteristic parameter of voice is tried, objective amount distortion is calculated and calculates, and resulting objective amount distortion is mapped as to the chi of subjective assessment
Degree expression, i.e. MOS values.
It will appreciated by the skilled person that all or part of step for realizing embodiment described in Fig. 5 is to lead to
Program is crossed to instruct the hardware of correlation to complete, described program can be stored in computer read/write memory medium, described
Storage medium can be ROM/RAM, magnetic disc, CD etc..When the program performs, including：Send original tested speech；Receive
The distortion measurement voice of speech degeneration simulation process has at least been carried out to the original tested speech；According to the original test language
Sound and the distortion measurement voice carry out MOS measurements, obtain MOS values.Wherein, can be with for sending the program of original tested speech
It is stored in and sends in terminal or analyzer；Speech degeneration simulation process has at least been carried out to the original tested speech for receiving
The program of distortion measurement voice can be stored in receiving terminal or analyzer, be stored in running its of the program
In its self-contained unit；Program for MOS measurements can be stored in receiving terminal or analyzer, be stored in running
In other self-contained units of the program.
The embodiment of the present invention additionally provides a kind of MOS measurement apparatus, it include be used for realize step S201 sending module,
For realizing step S202 receiving module and realizing step S203 processing module.The MOS measurement apparatus can be by software
Realize, and run on hardware device, such as it can run on terminal (such as mobile phone), can also run on other independent
On hardware device.The speech degeneration simulation process send words simulation process and/or the called emulation of terminal speech including terminal speech
Processing.As a kind of embodiment, the original tested speech is sent to the first filtering with f1 in the sending module
Device, and obtain having f1's after sending words simulation process to the original tested speech progress terminal speech by first wave filter
First tested speech, and sent via terminal is sent to the wireless network with f2, the receiving module is whole via receiving
End receives the second tested speech conduct as obtained from the wireless network transmits first tested speech with f1 and f2
Distortion measurement voice, send to processing module.As another embodiment, the receiving module filters from second with f3
Device obtains the test language of the 3rd with f1, f2 and f3 for carrying out the called simulation process of terminal speech to second tested speech
Sound is as distortion measurement voice.As the third embodiment, the sending module is via sending terminal by the original test
Voice is sent to the wireless network with f2, and receiving terminal receives transmits the original tested speech by the wireless network
And the 4th tested speech with f2 is obtained, the receiving module is obtained from the second wave filter with f3 and surveyed to the described 4th
Try voice and carry out the 5th tested speech with f2 and f3 of the called simulation process of terminal speech as distortion measurement voice.
The embodiment of the present invention additionally provides a kind of analyzer, and it includes：Voice for sending original tested speech is sent
Device；For receiving the voice for the distortion measurement voice at least having carried out speech degeneration simulation process to the original tested speech
Receiver；For carrying out MOS measurements according to the original tested speech and the distortion measurement voice, the voice of MOS values is obtained
Processor.The analyzer is realized by hardware, can be integrated with terminal (such as mobile phone), or forms independent analysis
Equipment.The embodiment of the analyzer includes：
1st, the voice transmission device sends the original tested speech to the first wave filter with f1, for described
One wave filter carries out terminal speech to the original tested speech and send words simulation process, obtains first tested speech with f1,
And sent via terminal is sent to the wireless network with f2.The voice receiver is received by described wireless via receiving terminal
Network transmits second tested speech obtained from first tested speech with f1 and f2, and by second tested speech
As distortion measurement voice.Speech processor is according to the original tested speech and the distortion measurement voice with f1 and f2
MOS measurements are carried out, obtain MOS values.
2nd, the voice transmission device sends the original tested speech to the first wave filter with f1, for described
One wave filter carries out terminal speech to the original tested speech and send words simulation process, obtains first tested speech with f1,
And sent via terminal is sent to the wireless network with f2.Received via receiving terminal as described in wireless network transmission
After the second tested speech with f1 and f2 obtained from first tested speech, the voice receiver is from second with f3
Wave filter obtains the survey of the 3rd with f1, f2 and f3 for carrying out the called simulation process of terminal speech to second tested speech
Voice is tried, and using the 3rd tested speech as distortion measurement voice.Speech processor according to the original tested speech and
The distortion measurement voice with f1, f2 and f3 carries out MOS measurements, obtains MOS values.
3rd, the voice transmission device sends the original tested speech to the second carry-over factor via terminal is sent
F2 wireless network.Obtained being received via receiving terminal by the wireless network transmission original tested speech with f2
The 4th tested speech after, the voice receiver from f3 the second wave filter obtain to the 4th tested speech
The 5th tested speech with f2 and f3 of the called simulation process of terminal speech is carried out, and using the 5th tested speech as mistake
True tested speech.Speech processor is carried out according to the original tested speech and the distortion measurement voice with f2 and f3
MOS is measured, and obtains MOS values.
Above-mentioned f1 is the emulation coefficient not influenceed by D/A, A/D and M/E, and above-mentioned f3 is not by D/A, A/D and M/E
The emulation coefficient of influence.It is described further with reference to Fig. 6 to embodiment illustrated in fig. 9.
Fig. 6 is MOS theories of testing block diagram provided in an embodiment of the present invention, as shown in fig. 6, wireless network can cause signal to move back
Change, therefore the embodiment of the present invention represents wireless network with f2 (i.e. wireless network has the second carry-over factor f2).Need to play
Standard voice signals (i.e. PCM voices 1) be converted to by the hardware system of MOS analysis instrument by D/A after analog voice signal again
The A/D of caller mobile phone 1 is sent to by M/E, analog voice signal is converted into PCM voices (i.e. PCM by the A/D of caller mobile phone 1
Voice 2), D/A, A/D and M/E during this be possible to introduce error, therefore the embodiment of the present invention by this process with f1 come
Represent (i.e. D/A, A/D and M/E process of sending side have the first carry-over factor f1).Called mobile phone 2 receives via wireless network
PCM voices (i.e. PCM voices 3) send the A/D of MOS analysis instrument to by M/E again after D/A becomes analog voice signal, by
A/D is reduced into PCM voice signals (i.e. PCM voices 4), and D/A, A/D and M/E during this are possible to introduce error, therefore this
Inventive embodiments represent this process with f3 (i.e. D/A, A/D and M/E process of receiving side have the 3rd carry-over factor f3).
If input signal is A, by MOS analysis instrument, caller mobile phone 1, MOS analysis instrument is returned to after wireless network and called mobile phone 2
Signal is B, then can draw B=A*f1*f3*f2.Cellular carrier and equipment vendor more pay close attention to f3 to B in being tested due to MOS
Influence, rather than influences of the f1 and f2 to B keep constant it is desirable to f1 and f2 in all MOS test process.
Fig. 7 is the MOS test block diagrams evaded mobile phone and introduce error that first embodiment of the invention provides, as shown in fig. 7, and
The difference of common MOS tests is not having A/D and D/A and M/E cables in (or removing) Fig. 6, but by Fig. 6 f1 and f3
Replaced completely with wave filter, such f1 and f3 are constant all the time, and the embodiment of the present invention can be absorbed in research f2, that is, network
Influence to MOS values, so as to evade because difference, environmental difference and/or mobile phone change (such as micphone abrasions) between mobile phone
MOS caused by difference brought etc. calculates difference.It is this to evade particularly when a large amount of cellphone subscribers carry out MOS tests simultaneously
Mobile phone introduces the Large Copacity MOS measuring methods of error and system just seems very advantageous.
Further, standard voice signals are not directly loaded into terminal and tested by A/D, D/A and MIC, this
Kind of mode due to do not pass through A/D, D/A and MIC cause some moment MOS values can abnormal big or exception it is small, therefore this
The test result of sample is not approved by operator etc..The embodiment of the present invention simulates A/D, D/A and MIC using f1 and f3 wave filters
Process, to solve the problem.
The received pronunciation PCM voices 1 (i.e. PCM tested speech) for needing to play are sent after being filtered by MOS analysis instrument by f1
F1 is directly carried out to mobile phone 1 or the standard voice signals (i.e. PCM tested speech) for needing to play in mobile phone 1 to filter to obtain
PCM voices 2 (the PCM tested speech i.e. with f1), after PCM voices 2 (the PCM tested speech i.e. with f1) are by being wirelessly transferred
Received by mobile phone 2, the PCM voices 3 (i.e. the PCM tested speech with f1 and f2) that mobile phone 2 receives export PCM after being filtered by f3
Voice 4 (the PCM tested speech i.e. with f1, f2 and f3), MOS analysis instrument is by (the i.e. PCM with f1, f2 and f3 of PCM voices 4
Tested speech) MOS calculating is carried out together with original PCM received pronunciations PCM voices 1 (i.e. PCM tested speech).
The MOS analysis instrument, can be the combination by hardware and software, can or separation integrated with mobile phone.
Fig. 8 is the MOS test block diagrams evaded mobile phone and introduce error that second embodiment of the invention provides, as shown in figure 8, this
The difference of embodiment and first embodiment shown in Fig. 7 is the received pronunciation PCM signal 1 (i.e. PCM tested speech), it is necessary to play
Without any processing such as filtering, directly it is transmitted by wireless network, other processes are consistent with embodiment 1.Specifically, need
The received pronunciation PCM voices 1 (i.e. PCM tested speech) to be played are sent to mobile phone 1 by MOS analysis instrument, are sent by mobile phone 1 to nothing
Gauze network, by being received after wireless network transmissions by mobile phone 2, mobile phone 2 receives received pronunciation PCM voices 1 (i.e. PCM tested speech)
PCM voices 3 (the PCM tested speech i.e. with f2) filtered by f3 after export PCM voices 4 (PCM i.e. with f2 and f3 surveyed
Try voice), MOS analysis instrument is by PCM voices 4 (i.e. the PCM tested speech with f2 and f3) and original PCM received pronunciations PCM languages
Sound 1 (i.e. PCM tested speech) carries out MOS calculating together.
The MOS analysis instrument can be the combination by hardware and software, can or separation integrated with mobile phone.
Fig. 9 is the MOS test block diagrams evaded mobile phone and introduce error that third embodiment of the invention provides, as shown in figure 9, this
The difference of embodiment and first embodiment shown in Fig. 7 is that called mobile phone (i.e. mobile phone 2) is received by wireless network transmissions
Without any processing such as filtering after PCM voices 3 after degeneration, MOS analysis instrument, other processes and first embodiment are directly sent to
1 is consistent.In particular, it may be desired to the received pronunciation PCM voices 1 (i.e. PCM tested speech) played are filtered by MOS analysis instrument by f1
Mobile phone 1 is sent to afterwards or the standard voice signals (i.e. PCM tested speech) for needing to play directly carry out f1 filtering in mobile phone 1
PCM voices 2 (the PCM tested speech i.e. with f1) are obtained, mobile phone 1 sends out PCM voices 2 (the PCM tested speech i.e. with f1)
Wireless network is delivered to, PCM voices 2 (the PCM tested speech i.e. with f1) after wireless network transmissions by mobile phone 2 by being received, hand
The PCM voices 3 (i.e. the PCM tested speech with f1 and f2) of reception are sent directly to MOS analysis instrument by machine 2, by MOS analysis instrument
By PCM voices 3 (i.e. the PCM tested speech with f1 and f2) and original PCM received pronunciations PCM voices 1 (i.e. PCM tested speech)
MOS calculating is carried out together.
Difference, environmental difference and/or mobile phone change the difference that (such as mic abrasions) is brought between needing to be analyzed to identify mobile phone
When, for example A/D, D/A and M/E of calling terminal or called end replace with f1 or f2 wave filters respectively, the MOS values drawn respectively with such as
The MOS values that A/D, D/A and the M/E of Fig. 7 calling terminals and called end all replace calculating with f1 and f2 wave filters are (by the MOS
Value is as standard reference signal) compare, if MOS value differences are not larger, called end or calling terminal are variant.With reference to Figure 10
Further illustrated with Figure 11 embodiment.
Figure 10 is the locating cellphone difference staged isolation analysis method theory block diagram that fourth embodiment of the invention provides, and is such as schemed
Shown in 10, A/D, D/A and M/E of calling terminal are replaced using f1 wave filters, obtains MOS values, by first shown in the MOS values and Fig. 7
The standard MOS values that embodiment is drawn are compared, if difference of them is larger, illustrate that called end has differences.
Figure 11 is the locating cellphone difference staged isolation analysis method theory block diagram that fifth embodiment of the invention provides, and is such as schemed
Shown in 11, A/D, D/A and M/E of called end are replaced using f2 wave filters, obtains MOS values, by first shown in the MOS values and Fig. 7
The standard MOS values that embodiment is drawn are compared, if difference of them is larger, illustrate that calling terminal has differences.
By Figure 10 and embodiment illustrated in fig. 11, the embodiment of the present invention can between mobile phone difference, environmental difference and/or
When MOS caused by mobile phone changes (as mic wears) difference for bringing calculates difference, quick and precisely position caused by position disparity.
The embodiment of the present invention being capable of difference, environmental difference and mobile phone between quick, accurate, convenient analyzing and positioning mobile phone
MOS caused by changing the difference brought (as mic wears) calculates the reason for difference causes.
Although the present invention is described in detail above, the invention is not restricted to this, those skilled in the art of the present technique
Various modifications can be carried out according to the principle of the present invention.Therefore, all modifications made according to the principle of the invention, all should be understood to
Fall into protection scope of the present invention.
Claims (15)
1. a kind of average opinion value MOS measuring methods, including：
Send original tested speech；
Receive the distortion measurement voice at least having carried out speech degeneration simulation process to the original tested speech；
MOS measurements are carried out according to the original tested speech and the distortion measurement voice, obtain MOS values.
2. according to the method for claim 1, the speech degeneration simulation process send words simulation process, institute including terminal speech
The original tested speech of transmission stated includes：
The original tested speech is sent to the first wave filter with the first carry-over factor f1, for first wave filter
Terminal speech is carried out to the original tested speech and send words simulation process, obtains first tested speech with f1, and via hair
End transmission of making arrangements for his funeral extremely has the second carry-over factor f2 wireless network.
3. according to the method for claim 2, described reception at least carries out speech degeneration to the original tested speech
The distortion measurement voice of simulation process includes：
The with f1 and f2 is received as obtained from the wireless network transmits first tested speech via receiving terminal
Two tested speech, and using second tested speech as distortion measurement voice.
4. according to the method for claim 2, the speech degeneration simulation process also includes the called simulation process of terminal speech,
The distortion measurement voice that described reception has at least carried out speech degeneration simulation process to the original tested speech includes：
Have f1's and f2 being received via receiving terminal as obtained from the wireless network transmits first tested speech
After second tested speech, obtain from the second wave filter with the 3rd carry-over factor f3 and second tested speech is carried out
The 3rd tested speech with f1, f2 and f3 of the called simulation process of terminal speech, and using the 3rd tested speech as mistake
True tested speech.
5. according to the method for claim 1, the original tested speech of described transmission includes：
The original tested speech is sent to the wireless network with f2 via terminal is sent.
6. according to the method for claim 5, the speech degeneration simulation process includes the called simulation process of terminal speech, institute
The distortion measurement voice that the reception stated at least has carried out speech degeneration simulation process to the original tested speech includes：
Obtain having the 4th of f2 to survey by the wireless network transmission original tested speech being received via receiving terminal
After trying voice, obtain from the second wave filter with f3 and the 4th tested speech is carried out at the called emulation of terminal speech
The 5th tested speech with f2 and f3 of reason, and using the 5th tested speech as distortion measurement voice.
7. a kind of analyzer, including：
Voice transmission device, for sending original tested speech；
Voice receiver, the distortion measurement of speech degeneration simulation process is at least carried out to the original tested speech for receiving
Voice；
Speech processor, for carrying out MOS measurements according to the original tested speech and the distortion measurement voice, obtain MOS
Value.
8. analyzer according to claim 7, the speech degeneration simulation process send words simulation process including terminal speech,
The voice transmission device sends the original tested speech to the first wave filter with the first carry-over factor f1, for described
First wave filter carries out terminal speech to the original tested speech and send words simulation process, obtains the first test language with f1
Sound, and sent via terminal is sent to the wireless network with the second carry-over factor f2.
9. analyzer according to claim 8, the voice receiver is received by the wireless network via receiving terminal
Transmitting has f1 and f2 the second tested speech obtained from first tested speech, and using second tested speech as
Distortion measurement voice.
10. analyzer according to claim 8, the speech degeneration simulation process also includes at the called emulation of terminal speech
Reason, the with f1 and f2 is being received as obtained from the wireless network transmits first tested speech via receiving terminal
After two tested speech, the voice receiver is obtained to described second from the second wave filter with the 3rd carry-over factor f3
Tested speech carries out the 3rd tested speech with f1, f2 and f3 of the called simulation process of terminal speech, and the described 3rd is surveyed
Voice is tried as distortion measurement voice.
11. analyzer according to claim 7, the voice transmission device is via sending terminal by the original tested speech
Send to the wireless network with the second carry-over factor f2.
12. analyzer according to claim 11, the speech degeneration simulation process is included at the called emulation of terminal speech
Reason, obtain having the 4th of f2 to test by the wireless network transmission original tested speech being received via receiving terminal
After voice, the voice receiver is obtained to the described 4th test language from the second wave filter with the 3rd carry-over factor f3
Sound carry out the called simulation process of terminal speech the 5th tested speech with f2 and f3, and using the 5th tested speech as
Distortion measurement voice.
13. a kind of MOS measurement apparatus, including：
Sending module, for sending original tested speech；
Receiving module, the distortion measurement language of speech degeneration simulation process is at least carried out to the original tested speech for receiving
Sound；
Measurement module, for carrying out MOS measurements according to the original tested speech and the distortion measurement voice, obtain MOS values.
14. device according to claim 13, the speech degeneration simulation process send words simulation process including terminal speech,
The sending module sends the original tested speech to the first wave filter with the first carry-over factor f1, for described
One wave filter carries out terminal speech to the original tested speech and send words simulation process, obtains first tested speech with f1,
And sent via terminal is sent to the wireless network with the second carry-over factor f2, or via sending terminal by the original survey
Examination voice is sent to the wireless network with f2.
15. device according to claim 14, the speech degeneration simulation process also includes at the called emulation of terminal speech
Reason, the receiving module receives via receiving terminal to be had as obtained from the wireless network transmits first tested speech
F1 and f2 the second tested speech as distortion measurement voice, or, obtained from the second wave filter with the 3rd carry-over factor f3
The 3rd tested speech with f1, f2 and f3 for carrying out the called simulation process of terminal speech to second tested speech is taken to make
For distortion measurement voice, or, being received via receiving terminal the original tested speech is transmitted by the wireless network and obtained
To after the 4th tested speech with f2, obtain from the second wave filter with f3 and the 4th tested speech is carried out eventually
The 5th tested speech with f2 and f3 of the called simulation process of speech is held as distortion measurement voice.
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